VideoQ Library
Sophisticated Video and Audio Test Patterns

Compression Stress Tracker (VQCST) Training Presentation

Color_Space_Explorer (VQCSE) Training Presentation

Multi-Purpose Chart (VQMPC) Training Presentation

Wonder Bars - VQCB Suite Training Presentation

HDR Test Patterns Training Presentation

Static and dynamic test patterns, uncompressed or compressed video and audio files:

• VQL Instantly reveals your video display, codec, scaler, converter or other video device performance
• VQL test patterns cover all 3 levels of video QA/QC:
  • Instant visual-aural Quality Estimation
  • Objective Measurements of video and audio performance
  • Fully automated (unattended) Quality Control
• VQL features:
  • Compatibility with all commonly used software or hardware codecs and media players
  • VideoQ VQV / VQMA / VQTS / VQDM compatible tests
  • Wide range of video frame sizes: from 192x108 to 7680x4320, and frame rates: from 23.976 to 240 fps
  • Variety of bit rates up to uncompressed 4:4:4 8K, 48 bit per pixel, 16 bit per component
  • Variety of video and audio formats, color spaces and level schemes, up to 8K HDR
  • All test patterns remain suitable for accurate measurements even after low bitrate coding, heavy scaling and/or cropping, e.g. after down-conversion for mobile devices
• Standard, custom and semi-custom tests for development labs, content processing facilities, CDN systems,
  software developers and high volume manufacturers

========= Target Applications =========

• Engineering, Research & Development of video systems and devices
• QA/QC of broadcast, prosumer and consumer video systems with LAN/WAN, HDMI and/or SDI connectivity
• CDN and IPTV systems QA/QC

========= VQL Test Categories =========

• Universal Test Charts, including the most popular VQMPC Multi-Purpose Chart, VQCB WonderBars™,
  VQGSG Geometry, Scaling & Gradations Test Chart (aka A1 Chart), VQMA Analyzer Matrix Test Chart
• GradTracker™ series - Levels and Colors Tests, including renown ColorSpaceExplorer™
• ScalTracker™ series - Geometry, Scaling, and Sharpness Tests
• ChronTracker™ series - Frame Rate Conversion, Interlace and Frame Cadence Tests,
  including VQDM AV Latency and AV Sync Tests
• StresTracker™ series - Compression Codecs Stress Tests
• Suite of sophisticated HDR Tests (PQ & HLG versions)
• Suite of Live Test Clips, Classic Static Video Tests (Color Bars, Ramps, Sweeps), and Audio Tests

========= VQL Customer Support =========

• Technical Guidance and Tutorials
• Remote and on-site training
• VQL based Advanced Test Suites are also available from GrayMeta and ISF