Under what designation is high efficiency video coding (HEVC) defined by the Video Coding Experts Group (VCEG)?

High Efficiency Video Coding (HEVC) is officially designated as H.265 by the Video Coding Experts Group (VCEG). This standard was developed to provide significantly improved video compression compared to its predecessor, H.264, also known as Advanced Video Coding (AVC). H.265 allows for better video quality at the same bitrate or the same video quality at a lower bitrate, making it highly effective for streaming high-resolution video such as 4K and beyond.

The designation H.264 corresponds to the previous video coding standard, which is commonly used but does not provide the compression efficiency of H.265. The other designations mentioned, such as H.252 and HEVC-2, are not recognized standards under VCEG. Therefore, the choice of H.265 accurately reflects the modern encoding technology that has been adopted widely in video delivery and storage.