Compressed Domain Transcoding of MPEG

Current video compression formats optimize for either compression or editing. For example, motion-JPEG (MJPEG) provides excellent random access and moderate overall compression, while MPEG optimizes for compression at the expense of random access. Converting from one format to another, a process called transcoding, is often desirable over the life of a video segment. This paper shows how to transcode MPEG-1 video to motion-JPEG without fully decompressing the MPEG-1 source. The described technique for compressed domain transcoding differs from previous work because it uses a new approximation approach that is optimized for software

• Type: Conference
• Year: 1998
• Where: ICMCS
• Authors: Soam Acharya, Brian C. Smith
• Keywords: ICMCS 1998, Moderate Overall Compression, Multimedia, Random Access, Video Compression Formats