H.265/HEVC vs H.264/AVC: 50% bit rate savings verified
Found on BBC News on Tuesday, 12 January 2016
The purpose of the subjective tests was to verify using human viewers the compression gains of the new video coding standard that had previously been estimated using objective metrics (e.g. Peak Signal to Noise Ratio – PSNR).
The overall average bit rate saving achieved by HEVC compared to AVC for the same subjective quality was found to be 59% as supposed to the 44% gain shown with objective quality metrics.
Video encoding is still a very complex topic with tons of options that produce better or worse results, depending on the type of the input stream.