Video compression

process of encoding information using fewer bits than the original representation

thumb|right|MPEG-2 is used in Digital Video Broadcast and DVDs. The MPEG transport stream, TS, and [[MPEG program stream, PS, are container formats.]]

standard for video compression

technique representing data as sums of cosine functions

video compression format, a successor to H.264/MPEG-4 AVC

VP9 is an open and royalty-free video coding format developed by Google.

AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. It was developed as a successor to VP9 by the Alliance for Open Media (AOMedia), a consortium founded in 2015 that includes semiconductor firms, video on demand providers, video content producers, software development companies and web browser vendors. The AV1 bitstream specification includes a reference video codec. In 2018, Facebook re-encoded 400 compressed Facebook videos with AV1, VP9, and x264 and found AV1 delivered around 34% lower bitrates than VP9 and about

video compression standard

SMPTE 421, informally known as VC-1, is a video coding format. Most of it was initially developed as Microsoft's proprietary video format Windows Media Video 9 in 2003. With some enhancements including the development of a new Advanced Profile, it was officially approved as an SMPTE standard on April 3, 2006. It was primarily marketed as a lower-complexity competitor to the H.264/MPEG-4 AVC standard. After its development, several companies other than Microsoft asserted that they held patents that applied to the technology, including Panasonic, LG Electronics and Samsung Electronics.

x265 is an encoder for creating digital video streams in the High Efficiency Video Coding (HEVC/H.265) video compression format developed by the Joint Collaborative Team on Video Coding (JCT-VC). It is available as a command-line app or a software library, under the terms of GNU General Public License (GPL) version 2 or later; however, customers may request a commercial license.

class of video frames processed in a distinct way by a compression algorithm

AVC-Intra is a term used by Panasonic to refer to its profiles of the H.264/MPEG-4 AVC standard encapsulated in MXF-format files. Among other features, it records video with only intra coding, so as to make it possible to edit videos without loss of quality, and makes other simplifications such as making the size of each frame fixed. The original AVC-Intra defines 10-bit 4:2:0 coding at 50 Mbit/s or 10-bit 4:2:2 at 100 Mbit/s for 1080p/i or 720p/i video.

lossless compression technique

video frame that a compression algorithm codes independently of its neighbors

video compression standard

digital format used to store compressed video data (sans containers)

The macroblock is a processing unit in image and video compression formats based on linear block transforms, typically the discrete cosine transform (DCT). A macroblock typically consists of 16×16 samples, and is further subdivided into transform blocks, and may be further subdivided into prediction blocks. Formats which are based on macroblocks include JPEG, where they are called MCU blocks, H.261, MPEG-1 Part 2, H.262/MPEG-2 Part 2, H.263, MPEG-4 Part 2, and H.264/MPEG-4 AVC. In H.265/HEVC, the macroblock as a basic processing unit has been replaced by the coding tree unit.

subsequence of video frames that a compression algorithm codes independently of other GOPs

XAVC is a recording format that was introduced by Sony on October 30, 2012. It is licensed to companies that want to make XAVC products.

extension to 3D film television standards

Dutch computer scientst

video filter applied to smooth edges

extension of the video compression standard H.264/MPEG-4 AVC

system used in computer graphics applications

working group