HEVC/H.265 Technology Overview

Consumers want a high-definition video at the best possible quality picture. They want to watch it whenever and wherever they choose. They want it delivered seamlessly to screens ranging from the largest monitors to the smallest smartphones, and they want it delivered with no lag, stutter, or digitization. The HEVC/H.265 standard offers the next generation video compression technologies needed to meet these immediate and rapidly growing needs.

The HEVC Advance Patent Portfolio License offered by Access Advance includes patents essential to all of the core functionalities of the HEVC/H.265 Standard:

  1. Frame partitioning and sub-partitioning
  2. Intra-picture prediction
  3. Inter-picture prediction
  4. Transforms, scaling, and quantization
  5. In-loop filtering
  6. Entropy coding

Better Quality, Reduced Bandwidth

HEVC/H.265 delivers significant bit rate reductions compared to existing protocols – up to a 50% bit rate improvement over H/264 – providing an optimized transport solution for 4K and higher video resolutions, and supporting images up to 7680 x 4320. HEVC can be adapted for any transport protocol, and is the leading technology for efficiently delivering streaming video in 4K and higher resolutions.

Video Performance

Video Display Modes480P720P1080P4K UHD
T. Tan et al., “Report on HEVC compression performance verification testing,” JCTVC-Q1011 (May 2014)

Average bit rate deduction compared to H.264/MPEG-4 AVC HP.

Still Image Performance

Still Image Coding Standard
(test method)
HEVC (PSNR)20.26%61.63%
HEVC (MOS)30.96%43.10%
P. Hanhart et al., “AhG4: Subjective evaluation of HEVC intra coding for still image compression,” JCTVC-L0380, (Jan. 2013)

Comparison of standards for still image compression based on equal PSNR and MOS.
Average bit rate reduction compared to JPEG 2000 and JPEG.

Benefits of HEVC/H.265

Higher Resolutions

Supports 4K and higher resolutions for enhanced user experience.


Higher compression allows more content to be available to consumers without modifying existing network and storage infrastructure.

Reduce Expenses

Deliver same content to consumers using fewer resources and lower data consumption.


Lower bit rates allows faster downloads.