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VQL Workflow Variants

VQMPC HD Version

Multi-purpose Dynamic Chart

Universal VQGSG Test Chart
Geometry & Scaling
SOB Display Screenshot

Frames Continuity Test
Long Exposure Photo

AUD2 Audio Test

Audio Levels Test
2.0 and 5.1 versions

VideoQ Library
Sophisticated Video and Audio Test Patterns

VideoQ Test Patterns Library Overview

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