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picture quality analysis system PQA600A datasheet features & bene ts fast, accurate, repeatable, and objective picture quality measurement (option bas) predict s dmos (differential mean opinion score) based on human vision system model (option bas) sd/hd/3g sdi, hdmi compliant with hdcp interface and ip interface supporting igmp for simultaneous generation and capture, 2-channel capture and 2-channel generation with swap-channel / side by side / wipe display real time up / down conversion at generation / capture with sdi/hdmi interface for testing the instrume nt with up / down conversion process. ip interface with simultaneous 2?channel generation / capture with igmp support for multicast streams (option ip) pictur e quality measurements can be made on a variety of hd video formats (1080p, 1080i, 720p) and sd video formats (525i or 625i) (option bas) user-con gurable viewing condition and display models for reference and com parison (option adv) attention/artifact weighted measurement (option adv) region of interest (roi) on measurement execution and review (option bas) automatic temporal and spatial alignment (option bas) embedded reference decoder (option bas) easy regression testing and automation using xml scripting with "export/import" file from gui (option adv) multiple results view options (option bas) preinstall ed sample reference and test sequences applicatio ns codec design, optimization, and veri cation conformance testing, transmission equipment, and system evaluation digital video mastering video compression services digital consumer product development and manufacturing picture quality analysis system the PQA600A is the latest-generation picture quality analyzer built on the emmy award winning tektronix pqa200/300. based on the concepts of the human vision system, the PQA600A provides a suite of repeatable, objective quality measurements that closely correspond with subj ective human visual assessment. these measurements provide valuable information to engineers working to optimize video compression and recovery, and maintaining a level of common carrier and distribution transmission service to clients and viewers.
datasheet user interface of PQA600A. showing reference, test sequences, with difference map and statistical graph. compressed video requires new test methods the true measure of any television system is viewer satisfaction. while the quality of analog and full-bandwidth digital video can be characterized indirectly by measuring the distortions of static test signals, compressed television systems pose a far more dif cult challenge. picture quality in a compressed system can change dynamically based on a combination of data rate, pi cture complexity, and the encoding algorithm employed. the static nature of test signals does not provide true characterization of picture quality. human viewer testing has been traditionally conducted as described in itu-r rec. bt.500-11. a test scene with natural content and motion is displayed in a tightly controlled environment, with human viewers expressing their opinion of picture quality to create a differential mean opinion score, or dmos. extensive testing using this method can be re ned to yield a consistent subjective rating. however, this method of evaluating the capabilities of a compressed video system can be inef cient, taking several weeks to months to perform the experiments. this test methodology c an be extremely expensive to complete, and often the results are not repeatable. thus, subjective dmos testing with human viewers is impractical for the codec design phase, and inef cient for ongoing operational quality evaluation. the PQA600A provides a fast, practical, repeatable, and objective measurement alternative to subjective dmos evaluation of picture quality. system evaluation the PQA600A can be used for installation, veri cation, and troubleshooting of each block of the video system because it is video technology agnostic: any visible d ifferences between video input and output from processing components in the system chain can be quanti ed and assessed for video quality degradation. not only can codec technologies be assessed in a system, but any process that has potential for visible differences can also be assessed. for example, digital transmission errors, format conversion (i.e. 1080i to 480p in set-top box conversions), analog transmission degradation, data errors , slow display response times, frame rate reduction (for mobile transmission and videophone teleconferencing), and more can all be evaluated. 2 www.tektronix.com
picture quality analysis system ? PQA600A how it works the PQA600A takes two video les as inputs: a reference video sequence and a compressed, impaired, or processed version of the reference. first, the PQA600A performs a spatial and temporal alignment between the two sequenc es, without the need for a calibration stripe embedded within the video sequence. then the PQA600A analyzes the quality of the test video, using measurements based on the human vision system and attention models, and then outputs quality measurements that are highly correlated with subjective assessments. the results include overall quality summary metrics, frame-by-frame measurement metrics, and an impairment ma p for each frame. the PQA600A also provides traditional picture quality measures such as psnr (peak signal-to-noise ratio) as an industry benchmark impairment diagnosis tool for measuring typical video impairments and detecting artifacts. each reference video sequence and test clip can have different resolutions and frame rates. this capability supports a variety of repurposing applications such as format conversion, dvd authoring, ip broadcasting, and semiconductor design. the PQA600A can also support measurement clips with lo ng sequence duration, allowing a video clip to be quanti ed for picture quality through various conversion processes. prediction of human vision perception PQA600A measurements are developed from the human vision system model and additional algorithms have been added to improve upon the model used i n the pqa200/300. this new extended technology allows legacy pqr measurements for sd while enabling predictions of subjective quality rating of video for a variety of video formats (hd, sd, cif, etc.). it takes into consideration different display types used to view the video (for example, interlaced or progressive and crt or lcd) and different viewing conditions (for example, room lighting and viewing distance). picture quality analysis system a model of the human vision system has been developed to predict the response to light stimulus with respect to the following parameters: contrast including supra-threshold mean luminance spatial frequency temporal frequency angular extent temporal extent surround eccentricity orientation adaptation effects www.tektronix.com 3
datasheet a : modulation sensitivity vs. temporal frequency b : modulation sensitivity vs. spatial frequency this model has been calibrated, over the appropriate combinations of ranges for these parameters, with reference stimulus-response data from vis ion science research. as a result of this calibration, the model provides a highly accurate prediction. c : reference picture d : perceptual contrast map the g raphs above are examples of scienti c data regarding human vision characteristics used to calibrate the human vision system model in the PQA600A. graph ( a ) shows modulation sensitivity vs. temporal frequency, and graph ( b ) shows modulation sensitivity vs. spatial frequency. the use of over 1400 calibration points supports high-accuracy measurement results. picture ( c ) is a single frame from the reference sequence of a moving sequence, and picture ( d ) is the perceptual contrast map calculated by the pqa 600a. the perceptual contrast map shows how the viewer perceives the reference sequence. the blurring on the background is caused by temporal masking due to camera panning and the black area around the jogger shows the masking effect due to the high contrast between the background and the jogger. the PQA600A creates the perceptual map for both reference and test sequences, then creates a perceptual difference map for use in making perceptually based, full-reference picture quality measurements. 4 www.tektronix.com
picture quality analysis system ? PQA600A e : reference f :test comparison of predicted dmos with psnr in the example above, reference ( e ) is a scene from one of the vclips library les. the image test ( f ), has been passed through a compression system which has degraded the resultant image. in this case the background of the jogger in test ( f ) is blurred compared to the reference image ( e ). a psnr measurement is made on the PQA600A of the diffe rence between the reference and test clip and the highlighted white areas of psnr map ( g ) shows the areas of greatest difference between the original and degraded image. another measurement is then made by the PQA600A, this time using the predicted dmos algorithm and the resultant perceptual difference map for dmos ( h ) image is shown. whiter regions g : psnr map h :perce ptual difference map for dmos in this perceptual contrast difference map indicate greater perceptual contrast differences between the reference and test images. in creating the perceptual contrast difference map, the PQA600A uses a human vision system model to determine the differences a viewer would perceive when watch ing the video. the predicted dmos measurement uses the perceptual contrast diffe rence map ( h ) to measure picture quality. this dmos measurement would correctly recognize the viewers perceive the jogger as less degraded than the trees in the background. the psnr measurement uses the difference map (g) and would incorrectly include differences that viewers do not see. www.tektronix.com 5
datasheet attention map example: the jogger is highlighted attention model the PQA600A opt . bas and opt. adv or pqasw opt. adv, also incorporate an attention model that predicts focus of attention. this model considers: motion of objects skin coloration (to identify people) location contrast shape size viewer distraction due to noticeable quality artifacts these attention parameters can be customized to give greater or less importance to each characteristic. this allows each measurement using an attention model to be user-con gurable. the model is especially useful to evaluate the video process tuned to the speci c application. for example, if the content is sports programming, the viewer is expected to have high er attention in limited regional areas of the scene. highlighted areas within the attention image map will show the areas of the image drawing the eye's attention. artifact detection artifact detection reports a variety of different changes to the edges of the image: loss of edges or blurring addition of edges or ringing/mosquito noise rotation of edges to vertical and horizontal or edge blockiness loss of edges within an image block or dc blockiness they work as weighting parameters for subjective and objective measurements with any combination. the results of these different artifact detection settings measurement combinations can help to improve picture quality through the system. for example, artifact detection can help answer questions such as: ?will thedmosbeimprovedwithmorede-blocking ltering?? or, ?should less pre ltering be used?? if edge-blocking weighted dmos is much greater than blurring-weighted dmos, the edge-blocking is the dominant artifact, and perhaps more de-bl ocking ltering should be considered. in some applications, it may be known that added edges, such as ringing and mo squito noise, are more objectionable than the other artifacts. these weightings can be customized by the user and con gured for the application to re ect this viewer preference, thus improving dmos prediction. likewise, psnr can be measured with these artifact weightings to determine how much of the error contributing to the psnr measurement comes from each artifact. the attention model and artifact detection can also be used in conjunction with any combination of picture quality measurements. this allows, for example, evaluation of how much of a particular noticeable artifact will be seen where a viewer is most likely to look. 6 www.tektronix.com
picture quality analysis system ? PQA600A con gure measure dialog comprehensive picture quality analysis the PQA600A provides full reference (fr) picture quality measurements that compare the luminance signal of reference and test videos. it also offer s some no reference (nr) measurements on the luminance signal of the test video only. reduced reference (rr) measurements can be made manually from differences in no reference measurements. the suite of measurements includes: critical viewing (human vision system model-based, full reference) picture quality casual viewing (attention weighted, full reference, or no reference) picture quality peak signal-to-noise ratio (psnr, full reference) focus of attention (applied to both full reference and no reference measurements) artifact detection (full reference, except for dc blockiness) dc blockiness (full reference and no reference) edit measu re dialog the PQA600A supports these measurements through preset and user-de ned combinations of display type, viewing conditions, human vision response (demographic), focus of attention, and artifact detection, in addition to the default itu bt-500 conditions. the ability to con gure measure ment conditions helps codec designers evaluate design trade-offs as they optimize for different applications, and helps any user investigate how different viewing conditions affect picture quality measurement results. a user-de ned measurement is created by modifying aprecon gured measurement or creating a new one, then saving and recalling the user-de ned measurement from the con gure measure dialog menu. easy-to-use interface the PQA600A has two modes: measurement and review. the measurement mode is used to execute the measurement selected in the con gure dialog. during measurement execution, the summary data and map res ults are displayed on-screen and saved to the system hard disk. the review mode is used to view previously saved summary results and maps created either with the measurement mode or xml script execution. the user can choose multiple results in this mode and compare each result side by side using the synchronous display in tile mode. comparing multiple results maps made with the different codec parameters and/or differ ent measurement con gurations enables easy investigation of the root cause of any difference. www.tektronix.com 7
datasheet summary graph graph display with time shift multip le result display resultant maps can be displayed synchronously with the reference and test video i n a summary, six-tiled, or overlaid display. in summary display, the user can see the multiple measurement graphs withab archart along with the reference video, test video, and difference map during video playback. the user also can select two measurement results on a graph with auto time shifting that absorbs the timing difference at the content capture tom compare two measurement results intuitively. summary measures of standard parameters and perceptual summation metrics for each frame and overall video sequence are provided. in six-tiled display, the user can display the 2 measurement results side by side. each consists of a reference video, test video, and difference map to compa re to each other. six-tiled display overlay display, reference and map in overlay display, the user can control the mixing ratio with the fader bar, enabl ing co-location of difference map, reference, and impairments in test videos. erro r logging and alarms are available to help users ef ciently track down the cause of video quality problems. all r esults, data, and graphs can be recalled to the display for examination. 8 www.tektronix.com
picture quality analysis system ? PQA600A auto spatial alignment execution with spatial region of interest selected automatic temporal/spatial alignment the PQA600A supports automatic temporal and spatial alignment, as well as manual a lignment. the automatic spatial alignment with spatial region of interest in measure mode selec ted independently of the spatial alignment function can measure the cropping, scale, and shift in each dimension, even across different resolutions and aspect ratios (for example, when aligning sd to hd video). if extra blanking is present within the standard active region, it is measured as cropping when this function is enabled. the automatic spatial and temporal alignment allows picture quality measurement between reference and test videos of different resolutions and frame rates. region of interest there are two types of spatial/temporal region of interest (roi): input and output. input rois are used to eliminate spatial or temporal regions from the measu rement which are not of interest to the user. for example, input output spatial roi on review mode for in-depth investigation spatial roi is used when running measurements for reference and test videos which have different aspect ratios. input temporal roi, also known as temporal sync, is used to execute measurements just for selected frames and minimize the measurement execution time. output rois can be used to review precalculated measurement results for only a subregion or temporal duration. output spatial roi is instantly selected by mouse operation and gives a score for just the selected spatial area. it' s an effective way to investigate a speci c spatial region in the difference map for certain impairments. output temporal roi is set by marker operation on the graph and allows users to get a result for just a particular scene when the video stream has multiple scenes. it also allows users to provide a result without any in uence from initial transients in the human vision model. each parameter can be embedded in a measurement for the r ecursive operation. www.tektronix.com 9
datasheet script sample import/export script in con gure measure dialog result file sample automatedtestingwithxmlscripting in t he codec debugging/optimizing process, the designer may want to repeat several measurement routines as codec parameters are revised. automated regression testing using xml scripting can ease the restrictions of manual operation by allowing the user to write a series of measurement sequences within an xml script. the script lecanbeexportedfromor imported to the measurement con guration menu to create and manage the scr ipt les easily. measurement results of the script operation can be viewed by using either the PQA600A user interface or any spreadsheet application hdmi compliant with hdcp support: comparing blu-ray disk players simultaneous generation/capture: measuring the picture quality of up-converter device that can read the created .csv le format as a summary. multiple scripts can be executed simultaneously for faster measurement results. sd/hd/3g sdi, hdmi compliant with hdcp interface and ip interface an sd/hd sdi interface and ip interface enable both generation and capture of sdi video and ip video. the hdmi compliant with hdcp support allows the user to directly capture the hdcp encrypted contents from the consumer instruments such as blu-ray player and set top box without hassle. this is bene cial for comparing the performance in multiple units/models or monitoring the picture quality of end to end broadcast chain including the stb output at home. there are three modes of simultaneous generation capture operation: generation and capture, 2-channel capture, and 2-channel generation. simultaneous generation and capture simultaneous generation and capture lets the user playout the reference video clips directly from the PQA600A into the device under test. the test output from the device can then be simultaneously captured by the PQA600A. the real time up / down converter could be inserted in the video sig nal path at generation or capture operation to evaluate an instrument with up / down conversion process. 10 www.tektronix.com
picture quality analysis system ? PQA600A simultaneous 2-channel capture: evaluating the performance of a set-top box simultaneous 2-channel generation: swapping output channels 1 and 2 simultaneous 2-channel capture simultaneous 2-channel capture lets the user capture two live signals to use as reference and test videos in evaluating the device under test in operation. to accommodate equipment processing delay that may be present in the system, the user can use the delay start function when capturing video. using delayed start minimizes the number of unused overhead frames in the test le and enables faster execution of the auto temporal alignment in the measurement. simultaneous 2-channel generation simul taneous 2-channel generation capability, available only in sdi/hdmi interface selection, supports three types of subjective testing with one display. swap-channel capability will exchange reference and test video simultaneous 2-channel generation: side-by-side display simultaneous 2-channel generation: wipe display sourc es in a frame to help the user to gure out the difference without moving his/her eye's focus point. side- by-side display arranges the video output from the regions in the reference and test video lining up in a row. the wipe display takes the left region of reference video and the right region of the test video and merges them into a single video output seamlessly. www.tektronix.com 11
datasheet igmp user interface igmp support in any mod es, the user can select the cross interface con guration such as generating from sdi/hdmi and capturing from ip or vice versa. igmp support in ip capture will make stream selection simple at multicast streaming. the compressed video le captured through ip will be converted to an uncompressed le by an internal embedded decoder. supported file formats for sd/hd/3g sdi, hdmi compliant with hdcp interface the sd/hd sdi video option can generate sdi video from les in the following for mats (8 bit unless otherwise stated): .yuv (uyvy, yu y2) .v210 (10 bit, uyvy, 3 components in 32 bits) .rgb (bgr24) .avi (uncomp ressed, bgr32 (discard alpha channel) / bgr24 / uyvy / yuy2 / v210) .vcap (created by PQA600A sdi video capture) .vcap10 (10 bit, created by PQA600A video capture) frame geometry format frame format 720 x 486 525i 29.97 720 x 576 625i 25 1280 x 720 720p 50, 59.94, 60 1080i 25, 29.97, 30 1080psf 23.98, 24, 25, 29.97, 30 1080p 23.98, 24, 25, 29.97, 30 1920 x 1080 1080p (level a,b) 50, 59.97, 60 supported file formats for ip interface the ip interface option can generate and capture compressed les using ts support over udp in compliance with iso/iec 13818-1. supported formats for up / down conversion supported formats for up / down conversion. the output video from format converter will stay in the same colorimetry in the original video. input format output format 525i 29.97 720p 59.94, 1080i 29.97 625i 25 720p 50, 1080i 25 720p 50 625i 25, 1080i 25 720p 59.94 525i 29.97, 1080i 29.97 720p 60 1080i 30 1080psf 23.98 525i 29.97 1080i 25 625i 25, 720p 50 1080i 29.97 525i 29.97, 720p 59.94 1080i 30 720p 60 12 www.tektronix.com
picture quality analysis system ? PQA600A supported file formats for measurement all formats support 8 bit unless otherwise stated: .yuv (uyvy, yuy2, yuv4:4:4, yuv4:2:0_planar) .v210 (10 bit, uyvy, 3 components in 32 bits) .rgb (bgr24, gbr24) .avi (uncompressed, bgr32 (discard alpha channel) / bgr24 / uyvy /yuy2/v210) arib ite format (4:2:0 planar with 3 separate les (.yyy, .bbb, .rrr)) .vcap (created by PQA600A sdi video capture) .vcap10 (10 bit, created by PQA600A video capture) the following compressed les are internally converted to an uncompressed le before measurement execution. the format support listed here is available in software version 4.0 and later. decoder format format es asf mp4 3gpp quicktime mp2 pes mp2 ps mp2 ts mxf gxf avi lxf h263 mp2 mp4 h264/avc dv vc-1 prores quicktime jpeg2000 vc3/dnxhd raw preinstalled video sequences sequence resolution formats clips 19201088 yuv4:2:0 planar v031202_eigth_ave, v031255_timesquare, v031251_stripy_jogger 19201080 uyvy v031251_stripy_jogger 1280720 uyvy, yuv4:2:0 planar v031002_eigth_ave, v031055_timesquare, v031051_stripy_jogger with 3/10/26 mb/s 864486 yuv4:2:0 planar converted v031051_stripy_jogger with 2/4/7 mb/s vclips 320180 yuv4:2:0 planar converted v031051_stripy_jogger with 1000/1780/2850 kb/s 720486 uyvy ferris, flower, tennis, cheer with 2 mb/s_25 fps pqa300 without trigger 720576 uyvy auto,bbc,ski,soccer 720486 uyvy mobile with 3/6/9 mb/s pqa300 with trigger 720576 uyvy mobile with 3/6/9 mb/s performance you can count on depend on tektronix to provide you with performance you can count on. in addition to industry-leading service and support, this product comes backed by a one-year warranty as standard. www.tektronix.com 13
datasheet characteristics (option bas) some measureme nts are available only with option adv. precon gured measurement set con guration nodes measurement class measurement name required option display model view model psnr perceptual difference artifact detection attention model summary node view video with no measurement "000 view video" bas na na na na na na na subjective prediction: full reference noticeable differences sd display and viewing "001 sd broadcast pqr" bas sd broadcast crt (itu-r bt.500) na typical na na pqr units hd display and viewing "002 hd broadcast pqr" bas hd broadcast crt (itu-r bt.500) na typical na na pqr units cif display and viewing "003 cif and qvga pqr" bas cif/qvga lcd 7 scrn heights, 20 cd/m^ 2 na typical na na pqr units d-cine ma proje ctor and viewi ng "004 d-cinema pqr" bas dmd projector 3 scrn heights, .1 cd/m^ 2 na typical na na pqr uni ts subjective rating predictions sd di splay and vie wing "005 sd bro adcast dmo s" bas sd br oadcast crt (itu -r bt.500) na typical na na dmos units re: bt.500 tra ining hd display and viewing "006 hd broadcast dmos" bas hd broadcast crt (itu-r bt.500) na typical na na dmos units re: bt.500 training c if display and v iewing " 007 cif and q vga dmos" b as c if/qvga lcd 7 scrn heights, 20 cd/m^ 2 na typical na na d mos units r e: bt.500 t raining d-cinema projector and viewing "008 d-cinema dmos" bas dmd projector 3 scrn heights, .1 cd/m^ 2 na typical na na dmos units re: bt.500 training attention biased subjective rating predictions sd display and viewing "009 sd broadcast admos" bas, adv sd broadcast crt (itu-r bt.500) na typical na default weightings dmos units re: bt.500 training hd display and viewing "010 hd broadcast admos" bas, adv hd broadcast crt (itu-r bt.500) na typical na default weightings dmos units re: bt.500 training cif display and viewing "011 cif and qvga admos" bas, adv cif/qvga lcd 7 scrn heights, 20 cd/m^ 2 na typical na default weightings dmos units re: bt.500 training sd sports "012 sd sports broadcast admos" bas, adv sd broadcast crt (itu-r bt.500) na typical na motion and foreground dominant dmos units re: bt.500 training hd sports "013 hd sports broadcast admos" bas, adv hd broadcast crt (itu-r bt.500) na typical na motion and foreground dominant dmos units re: bt.500 training sd talking head "014 sd talking head broadcast admos" bas, adv sd broadcast crt (itu-r bt.500) na typical na skin and foreground dominant dmos units re: bt.500 training 14 www.tektronix.com
picture quality analysis system ? PQA600A con guration nodes measurement class measurement name required option display model view model psnr perceptual difference artifact detection attention model summary node repurposing: reference and test are independent. use any combination display model and viewing conditions with each measurement above format conversion: cinema to sd dvd "015 sd dvd from d-cinema dmos" bas dmd projector and sd crt 7 scrn heights, 20 cd/m^ 2 and (itu-r bt.500) na expert na na dmos units re: bt.500 training format conversion: sd to cif "016 cif from sd broadcast dmos" bas lcd and sd broadcast crt (itu-r bt.500) and 7 scrn heights, 20 cd/m^ 2 na expert na na dmos units re: bt.500 training format conversion: hd to sd "017 sd from hd broadcast dmos" bas sd and hd broadcast crt (itu-r bt.500) na expert na na dmos units re: bt.500 training format conversion: sd to hd "017-a sd from hd broadcast dmos" bas sd and hd progressive crt (itu-r bt.500) na expert na na dmos units re: bt.500 training format conversion: cif to qcif "018 qcif from cif and qvga dmos" bas qcif and cif/qvga lcd 7 scrn heights, 20 cd/m^ 2 na expert na na dmos units re: bt.500 training attention attention "019 stand-alone attention model" bas, adv na na na na na default weightings map units: % probability of focus of attention objective measurements: full reference general difference psnr "020 psnr db" bas na auto-align spatial selected na na na db units artifact measurement removed edges "021 removed edges percent" bas, adv na auto-align spatial na na blurring na % a dded edges " 022 added e dges percent" bas, adv n a a uto-align s patial n a n a ringing / mosquito noise n a % rotated edges "023 rotated edges percent" bas, adv na auto-align spatial na na edge blockiness na % %oforiginal deviation from block dc "024 dc blocking percent" bas, adv na auto-align spatial na na dc blockiness na % artifact classi ed (filtered) psnr removed edges "025 removed edges weighted psnr db" bas, adv na auto-align spatial selected na blurring na db units added edges "026 added edges weighted psnr db" bas, adv na auto-align spatial selected na ringing / mosquito noise na db units rotated edges "027 rotated edges weighted psnr db" bas, adv na auto-align spatial selected na edge blockiness na db units %oforiginal deviation from block dc "028 dc blocking weighted psnr db" bas, adv na auto-align spatial selected na dc blockiness na db units artifact annoyance weighted (filtered) psnr psnr w/ default artifact annoyance weights "029 artifact annoyance weighted psnr db" bas, adv na auto-align spatial selected na all artifacts selected na db units www.tektronix.com 15
datasheet con guration nodes measurement class measurement name required option display model view model psnr perceptual difference artifact detection attention model summary node repurposing: use view model to resample, shift, and crop test to map to reference format conversion: cinema to sd dvd "030 sd dvd from d-cinema artifact weighted psnr db" bas, adv na auto-align spatial selected na all artifacts selected na db units format conversion: sd to cif "031 cif from sd broadcast artifact weighted psnr db" bas, adv na auto-align spatial selected na all artifacts selected na db units format conversion: hd to sd "032 sd from hd broadcast artifact weighted psnr db" bas, adv na auto-align spatial selected na all artifacts selected na db units format conversion: cif to qcif "033 qcif from cif and qvga artifact weighted psnr db" bas, adv na auto-align spatial selected na all artifacts selected na db units attention-weighted objective measurements general difference psnr "034 attention weighted psnr db" bas, adv na na selected na na default weightings db units obj ective measurements: no reference artifact dc blockiness "035 no reference dc blockiness percent" bas, adv na na na na no-reference dc block na %dc blockiness subjective prediction calibrated by subjective rating c onducted in 2009 with 1080i29 video contents and h.264 codec (refer to application note, 28w_24876_0.pdf) 036 hd pqr itu-bt500 with interlaced crt bas custom hd crt 3 scrn heights n a custom n a n a pqr units 037 hd dmos itu-bt500 with interlaced crt bas custom hd crt 3 scrn heights na custom na na dmos units re:bt.500 training 038 hd admos itu-bt500 with interlaced crt bas, adv custom hd crt 3 scrn heights na custom na typical dmos units re:bt.500 training 16 www.tektronix.com
picture quality analysis system ? PQA600A nodes node name con gurable parameter display model display technology: crt/lcd/dmd each with preset and user-con gurable parameters (interlace/progressive, gamma, response time, etc). reference display and test display can be set independently view model viewing distance, ambient luminance for reference and test independently, image cropping and registration: automatic or manual control of image cropping and test image contrast (ac gain), brightness (dc offset), horizontal and vertical scale and shift psnr no con gurable parameters perceptual difference the viewer characteristics (acuity, sensitivity to changes in average brightness, response speed to the moving object, sensitivity to photosensit ive epilepsy triggers, etc) attention model overall attention weighting for measures, temporal (motion), spatial (center, people (skin), foreground, contrast, color, shape, size), distractions (differences) artifact detect added edges (blurring), removed edges (ringing/mosquito noise), rotated edges (edge blockiness), and dc blockine ss (removed detail within a block) summary node measurement units (subjective: predicted dmos, pqr or % perceptual contrast. objective: mean abs lsb, db)., map type: signed on gray or unsigned on black. worst-case training sequence for itu-r bt.500 training (default or user-application tuned: determined by worst case video % perceptual contrast), error log threshold, save mode computer system and peripherals com ponent description operating system windows 7 professional 64-bit cpu intel? xeon? processor e5-2630 2.3 ghz hard disk drive 0.5tb (os), 2.5tb (video) cd/dvd drive 8x dvd+/-rw drive input/output ports port description power 100-240 v, 50/60 hz (115 v/230 v, 6 a/3 a) keyboard port ps-2 compatible mouse port ps-2 compatible usb ports 8x usb 2.0, 2x usb 3.0 lan port two rj-45 connector, 10/100/1000base-t graphics port dual link dvi-i (hdcp), display port (hdcp), up to 2560160060hz sdi/hdmiioport 1sdiinput,1sdioutput,1hdmiinput(typec,hdcp) *1 , 1 hdmi output (type c) *1 there are restrictions to be compliant with the hdcp license. please consult your local tektronix sales representative for more information. physical characteristics benchtop con guration dimensions mm in. height 433.4 16.95 width 216.0 8.5 depth 525.0 20.7 weight kg lb. net 16.9 37.3 ordering information PQA600A picture quality analysis system pc monitor requirement note : PQA600A does not include a pc monitor. an external monitor meeting the following requirements is to be provided by the user: hdcp compliant dual link dvi port display resolution: 25601600 optimum/preferred 19201080 minimum included accessories ? one-year warranty, plus the following: order number descripti on PQA600A picture quality analysis system documentation 071-3119-xx quick start user manual 077-0787-xx release notes 071-3120-xx user technical reference 077-0789-xx speci cation and performance veri cation manual in pdf format on documentation cd 077-0788-xx PQA600A declassi cation and security instructions in pdf format on documentation cd 077-0 790-xx PQA600A con guration guide technical reference in pdf format on documentation cd 063-4488-xx documentation cd, containing pdf les of the documentation set other 020-3130-xx application recovery disk 020-3053-xx video sequences recovery media - usb keyboard - usb mouse - software key dongle 174-6308-xx hdmi cable, type a to type c (2.0 m) options option description bas base measurement package adv advanced measurement package (script operation, measurement con gurability, weighting measurements) ip ip generation / capture lud add permissions to existing hardware key. note: need to purchase option bas for basic picture quality measurement. option adv requires option bas. www.tektronix.com 17
datasheet international power plugs option description a0 north america power a1 universal euro power a2 united kingdom power a3 australia power a4 240vnorthamericapower a5 switzerland power a6 japan power a10 china power a11 india power a12 brazil power a99 no power cord or ac adapter service option description ca1 single calibration or functional veri cation c3 calibration service 3 years r3 repair service 3 years if upgrade installation service post-sale upgrade option description pqa6aup field upgrade kit for PQA600A. choose from the following options. bas base measurement package adv advance d measurement package (script operation, measure ment con gurability, weighting measurement) ip genera tion / capture ip ip generation / capture pqa6up field upgrade kit for pqa600 vid sdi/hdmi card product selection feature pqasw PQA600A psnr,pqr,dmosprecon gured measurements yes option bas multi-resolution/frame-rate support yes option bas multi-results view options yes option bas embedded reference decoder yes option bas automatic temporal and spatial alignment yes option bas ip generation/capture opt. ip opt. ip user-con gurable measurements opt. adv opt. adv attention/artifact weighted measurements opt. adv opt. adv xml scripting with export/import les opt. adv opt. adv sd/hd/3g sdi generation and capture no yes hdmi without hdcp generation and capture no yes hdmi with hdcp generation & capture no opt. bas video format conversion no yes side by side, wipe display at generation no yes additional information please contact your local service manager for information regarding our products and services, or contact us at: www.tektronix.com/serviceandsupportcontactus tektronix is registered to iso 9001 and iso 14001 by sri quality system registrar. 18 www.tektronix.com
picture quality analysis system ? PQA600A contact tektroni x: asean / australasia (65) 6356 3900 austria 00800 2255 4835* balkans, israel , south africa and other ise countries +41 52 675 3777 belgium 00800 2255 4835* brazil +55(11)37597627 canada 1 800 833 9200 central east europe and the baltics +41526753777 central europe & greece +41 52 675 3777 denmark +45808 81401 finland +41 52 675 3777 france 00800 2255 4835* germany 00800 2255 4835* hong kong 400 820 5835 india 000 800 650 1835 italy 00800 22 55 4835* japan 81 (3) 6714 3010 luxembourg +41526753777 mexico, centr al/south america & caribbean 52 (55) 56 04 50 90 middle east, asia, and north africa +41 52 675 3777 the netherlands 00800 2255 4835* norway 800 16 098 people?s republic of china 400 820 5835 poland +41 52 675 3777 portugal 80 0 8 12370 republic of korea 001 800 8255 2835 russia & cis +7 (495) 7484900 south afric a +41526753777 spain 00800 2255 4835* sweden 00800 2255 4835* switzerlan d 00800 2255 4835* taiwan 886 (2) 2722 9622 united kingdom & ireland 00800 2255 4835* usa 1 800 83 39200 * european toll-free number. if not accessible, call: +41 52 675 3777 updated 10 february 2011 for further information. tektronix maintains a comprehensive, constantly expanding collection of application notes, technical bri efs and other resources to help engineers working on the cutting edge of technology. please visit www.tektronix.com copyright ? tektronix, inc. all rights reserved. tektronix products are covered by u.s. and foreign patents, issued and pending. information in this publication supersedes that in all previously published material. speci cation and price change privileges reserved. tektronix and tek are registered trademarks of tektronix, inc. all other trade names referenced are the service marks, trademarks, or registered trademarks of their respective companies. 11 dec 201 2 25w-28639-0 19 www.tektronix.com

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