I'd like to call it H.265, because it sounds cool, but its full name is High Efficiency Video Coding (HEVC). It's the new successor to Advanced Video Coding (AVC), also known as H.264, which is one of ...
A 3.0X times image compression method and fast storage device accessing H.265 referencing image frame is achieved by applying fixed bit rate to reduce each “Block of pixels” data of each image frame.