What Experts Are Saying

  • Jan Ozer of the Streaming Learning Center:

    ZPEG processing never introduced any noticeable artifacts in any tested videos, despite data rate reductions in excess of 38% in some cases.

  • Jan Ozer of The Streaming Learning Center:

    ...despite a data rate reduction of 30%, the ZPEGprocessed clip shows no artifacts of any kind. Color and exposure are also nearly identical.

Jan Ozer is a renowned expert in the assessment of streaming video quality. His industry credits include many important publications in the are of video streaming, regula contributions to Streaming Media Magazine, regular keynote addresses at NAB and other important industry gatherings, and professional comparative assessment of innovative video streaming technologies.

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How does it work?

The ZPEG Engine adds an advanced three-dimensional Discrete Cosine Transform (DCT)-based human visual model to your X264 encoder.

Our Human Visual Model is applied in the two spatial dimensions and a third temporal dimension, extracting visually redundant information between frames before submitting to the x264 encoder. Compression gains are obtained as the pattern-matching algorithms of standards-based motion video compression algorithms becomes more efficient by leveraging variable sensitivity of the human eye to different temporal frequencies.

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  • 3

  • Issued Patents

  • 7

  • Pending Patents

Efficiency Gains with The ZPEG Engine

Bandwidth Savings Percentage over x264 & x265

  • Screen Resolution

    • HD
    • UHD

  • x264 Baseline (AVC)

    • 0%
    • 0%

  • ZPEG Engine + x264

    • 21%
    • 30%

  • x264 Baseline (AVC)

    • 0%
    • 0%

  • x264 Baseline (AVC)

    • 0%
    • 0%

  • x264 Baseline (AVC)

    • 0%
    • 0%

Objective Quality Scores

ZPEG’s Objective Metric Score is >90,”imperceptible”

  • Sequence

    • Bosphorus
    • HoneyBee
    • Jockey
    • ReadySetGo
    • ShakeNDry
    • YachtRide
    • Average

  • SSIM

    • 94.10%
    • 86.30%
    • 86.20%
    • 95.50%
    • 87.20%
    • 94.50%
    • 90.60%

  • VMAF Aggregate Score

    • 95.021
    • 99.992
    • 99.783
    • 99.74
    • 96.501
    • 95.844
    • 97.498

  • x264 Bandwidth Savings

    • 35.09%
    • 66.46%
    • 32.42%
    • 24.74%
    • 50.49%
    • 24.59%
    • 38.97%

  • X265 Bandwidth Savings

    • 36.26%
    • 68.68%
    • 33.50%
    • 25.56%
    • 52.17%
    • 25.41%
    • 40.26%