MPEGpakkaus

MPEGpakkaus refers to the compression techniques developed by the Moving Picture Experts Group (MPEG). These methods are widely used for encoding and decoding digital video and audio. The primary goal of MPEG compression is to reduce the amount of data required to represent video and audio content without significantly degrading perceptual quality. This is achieved through various techniques, including spatial and temporal redundancy reduction. Spatial redundancy is reduced by encoding only differences between pixels within a single frame, while temporal redundancy is addressed by encoding only the differences between consecutive frames.

Several MPEG standards exist, each offering different levels of compression efficiency and quality. Popular standards include MPEG-1, MPEG-2, MPEG-4 Part 2, and MPEG-4 Part 10 (also known as H.264/AVC). MPEG-1 was an early standard, commonly used for VCDs. MPEG-2 improved upon this, becoming the standard for DVDs and digital broadcasting. MPEG-4 brought more advanced compression tools and features, and H.264/AVC offers significantly higher compression efficiency, making it suitable for high-definition video and streaming. The choice of MPEG standard often depends on the application, desired quality, and available bandwidth.