Technologies, products, services and advantages vs competitors November 2013

2/14 Technologies and know-how Perceived video quality metrics Différent technologies for different applications Know-how Human Visual System (HVS) modeling, perception modeling Subjective quality assessment testing (using normalized methodologies) Signal processing (image, video, audio) and software developpement under Windows/Linux Codecs, DirectShow (under Windows), Gstreamer (under Linux), SD/HD capture cards, streaming, network (client/server applications, HTML, javascript, PHP, FTP, SNMP), infra-red codes learning/sending Full-reference perceived video quality metric (any codec) No-reference perceived video quality metric (MPEG-2) No-reference perceived video quality metric (H.264) Parametric perceived video quality metric (MPEG-2) Parametric perceived video quality metric (H.264) Hybrid perceived video quality metric (MPEG-2) Hybrid perceived video quality metric (H.264) Full-reference perceived audio quality metric (any codec) No-reference perceived audio quality metric (any codec) Audio/video synchronization (lipsync) metric (any codec) Metric for the impact of jerkiness (image freezing) on user experience Useful to measure the quality of streaming services like youtube, dailymotion, etc.

3/14 Main products Perceived video quality metrics Video Quality Analyzer (VQA) – Full-reference metric Benchmarking of encoders / Optimization of encoding parameters Monitoring of a file-based encoding process (VOD) Encoding/transcoding with chosen quality of output files Video Quality Monitor (VQM) – No-reference, parametric and hybrid metrics No-reference audio/video quality measurement from files Monitoring of audio/video quality from IP (UDP, RTP, HTTP), capture card or desktop capture Measurement /monitoring of loudness (according to international standards) MPEG Monitor – Parametric metrics Monitoring of perceived quality of several IP streams on a single machine Audio Video Sync Monitor (AVSM) Monitor ing of lipsync (synchronization between audio and video) pour des live sources (from IP streams, or from capture card) Video Quality Measurement SDK (VQM SDK) – No-reference metrics Library (DLL) for measurement/monitoring of perceived audio/video quality in third-party applications

4/14 Other products Perceived video quality metrics YUV Convert Conversion/processing of videos in uncompressed YUV formats ProcessX Input: from a capture device, from a file or from IP streaming Output: display (windowed or full screen), saving in a file, rendering (output video card), streaming Processing: encoding or none Several processings in parallel, scripting, web interface, TCP connection H.264 SVC (Scalable Video Coding) Test Streams Interoperability tests for decoders ACR Test Interface Tool to perform subjective audio/video quality assessment tests QoS Tools (Linux/Windows) Measurement of packets loss, packets corruption, delay, jitter, re-ordering Simulation of transmission errors and also: DirectShow filters (audio/video delay, save to disk with buffer, virtual camera, audio/video switch), network simulators, neural networks…

5/14 Services Studies Subjective testing Equipment benchmarking (before purchase) Equipment optimization (for already purchased equipment) Audit on perceived video quality (example: quality measurement before and after a change in the broadcasting chain) Design and developement of customer metrics (audio, telemedicine, …) Custom software development Integration of tools and technologies Perceived video quality metrics For subjective performance evaluation of equipment or processing Custom development of applications for quality measurement, capture, playing, video processing White-label development

Human visual perception modeling (resulting in metrics being much more precise than PSNR, SSIM, etc.) The most complete range of perceived video quality metrics (full reference, no reference, parametric, hybrid), for all kinds of applications Permanent optimisation of metrics and updated of deployed solutions Very detailed measurement reports (patented) 6/14 Advantage vs competitors Technologies Services Products High flexibility of products (especially for Video Quality Monitor and Video Quality Analyzer) Possiblity to adapt products (for integration) and to add custom features Video Quality Analyzer (VQA) can measure video quality ising reference videos having a different resolution and/or a different frame rate. Exemple (for mobile TV): measure quality of videos in QVGA at 15 fps using reference videos in SD at 25.0 fps SDK for audio/video decoding and measurerment of audio/video quality without reference Very detailed measurement reports with recommendations for purchase or optimization Perceived video quality metrics

7/14 Video Quality Monitor (no reference, parametric and hybrid metrics) Audio video quality measurement from files, streaming or capture cards Measurement of blockiness, blur, contrast, jerkiness, audio and video bitrates Audio loudness measurement according to industry standards ITU BS and EBU R 128 Camera noise measurement and monitoring (for video cameras benchmarking) “Decodability” metrics (ultra fast checking of the numbers of decoded audio samples and frames) Remote monitoring and remote consultation of results thanks to the web interface Curves and statistics computation between 2 user- chosen dates and times Infra-red support (for STB testing) and scripts execution Perceived video quality metrics

8/14 Quality scores, quality curves, reports with statistics on distortions) Video Quality Monitor (VQM) Video Quality Monitor (VQM) Tested set-top box Perceived video quality metrics Example of test/validation platform for set-top box testing HDMI or composite Infra red codes Live TV channels

9/14 File-based solution Can read the most common formats: YUV, MPEG2, MPEG4/AVC, AVI, TS, MOV, WMV… Measurement of perceived audio and video quality Measurement of audio and video bitrate Measurement of synchronization between audio and video (lipsync) Automatic synchronization (alignment) with a reference video Results: quality scores, curves, characteristic images, VERY detailed reports (TXT, CSV, HTML) Remote consultation of results thanks to the web interface Comparison of videos with magnifying glass and horizontal/vertical profiles Also computes MSE & PSNR on the 3 YUV components Automation possibilities (command line, watch folder, scripts loading) Video Quality Analyzer (full reference metrics) Perceived video quality metrics

10/14 HDMI HD-SDI Broadcasting chain Quality scores, quality curves, VERY detailed reports with statistics on distortions Tested video encoder VQA Video Quality Analyzer VQA Video Quality Analyzer Reference videos Network Distorted videos (captured) Video decoder Automatic playing and recording of videos using our solution ProcessX Perceived video quality metrics Example of test/validation platform for encoders benchmarking

11/14 MPEG Monitor (parametric metrics) Monitoring of perceived audio/video quality for one or several MPEG-2 or H.264 IP streams (RTP or UDP), in unicast and/or multicast Monitoring of audio/video signal loss, black frames and silences Monitoring of audio/video bitrate Mosaïc with video preview and audio level indication Alerts triggering (SNMP, s) Saving of audio video samples when problems happen (from several seconds before the problem, until several seconds after the problem) Remote monitoring and consultation of results thanks to the web interface Curves and statistics computation between 2 user-chosen dates and times Perceived video quality metrics

12/14 Two types of agents: –probes (at least two probes) –server (at least one) A probe receives audio and video from IP streaming (UDP or RTP), from capture devices, or from files (useful for evaluation) A probe transforms audio samples and video frames in audio fingerprints and video fingerprints A server receives audio and video fingerprints from different probes and compares them to measure audio delay, video delay and skew (desynchronisation, or misalignment between audio and video) Remote monitoring and remote consultation of results thanks to the web interface Curves and statistics computation between 2 user- chosen dates and times Saving of audio video samples when problems happen (from several seconds before the problem, until several seconds after the problem) Audio Video Sync Monitor (full reference metrics) Perceived video quality metrics

13/14 YUV Convert Support of many formats: YUV, MPEG2, MPEG4/AVC, AVI, TS, MOV, WMV… Cropping, reverse frames, swap fields, upscale, downscale « Magnifying glass » and « profiles » functions Input/output of list of images Watch Folder Web interface Conversion and processing of videos in uncompressed YUV formatsYUV Perceived video quality metrics

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