video compression
Reducing file size
Video compression reduces the file size of video data by eliminating redundant or imperceptible information.
Compression algorithms exploit patterns across frames—storing only what changes rather than every pixel of every frame.
Lossy compression sacrifices some quality for smaller files; lossless preserves everything.
The streaming service uses aggressive video compression to reduce bandwidth.
Without compression, a feature film would require hundreds of gigabytes.
- lossySacrificing fidelity for size
- codecData compression algorithm
- VP9German polymer-frame pistol
- quantizationConversion to discrete values
- predictive codingBrain anticipates sensory data
key frame · frame · block · streaming · WebM · bit rate · GOP · artifact · pixel · color space · MPEG-2 · latency · upload · HandBrake · playback · surveillance systems · lossless · 4K
- compressioncompress, compressor, compressing, compact, compacting
- network optimizationload balancing, throughput, CDN, caching, queue management
- multimediaaudio, images, graphics, animation, playback
- Home VideoVHS, DVD, camcorder, home movies, Blu-ray
- Digital cinema4K, 4K resolution, projector, screen, IMAX
- DVDsDVD, DVD player, DVD players, DVD drive, DVD drives