ESP™ | Encoder Stress Pattern | SRI International
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ESP™ Encoder Stress Pattern

SRI’s ESP™ is a sophisticated video clip consisting of specialized and complex artificial test patterns that stress various aspects of processing to quickly reveal television encoder deficiencies. Its unique motion sequences allow users to visually evaluate and objectively compare the quality and performance of standard- and high-definition encoders.

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Test Features

  • Edge aliasing
  • Amplitude range
  • HF quantization
  • DC quantization
  • Noise corruption
  • Motion estimation
  • Raster decimation
  • Temporal subsampling
  • Temporal quantization
  • MPEG bit rate effects
  • Judder and missing frames
  • System frequency response
  • Spatial frequency response
  • Vertical vs. horizontal resolution equality

Included Resolutions

  • 1920 x 1080i 30/29.97
  • 1280 x 720p 60/59.94
  • 720 x 480p 30/29.97
  • 720 x 480i 30/29.97
  • In R’G’B’ 4:4:4 or Y’CbCr 4:2:2 uncompressed frames

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Using SRI’s Emmy® award-winning technology, the Sarnoff® Bitstreams™ suite is the de facto standard for systematically and unambiguously testing decoders against industry standards. It works in a matter of seconds and does not require a reference signal or specialized decoder.

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Sarnoff audiovisual test sequence generators combine acclaimed digital test patterns with uncompressed playback hardware for testing and verifying the quality of digital video signal chains up to 4Kp60 using HDMI and Quad 3G-SDI.

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