TAILIEUCHUNG - Lecture BSc Multimedia - Chapter 12: MPEG video

Chapter 12 provides knowledge of MPEG video. The main contents of this chapter include all of the following: Video compression, video compression: MPEG, compression standards, how to compress video? Simple motion example, estimating motion of blocks,. | CM3106 Chapter 12 MPEG Video Prof David Marshall and Dr Kirill Sidorov CARDIFF UNIVERSITY PRIFYSCOL CAERpv School of Computer Science Informatics Cardiff University UK Video Compression We need to compress video more so than audio images in practice since J Uncompressed video and audio data are huge. In HDTV the bit rate easily exceeds 1 Gbps big problems for storage and network communications. . HDTV 1920 x 1080 at 30 frames per second 8 bits per YCbCr PAL channel Gbps. 5 Lossy methods have to be employed since the compression ratio of lossless methods . Huffman Arithmetic LZW is not high enough for image and video compression. CM3106 Chapter 12 MPEG Video Video Compression 1 Video Compression MPEG Not the complete picture studied here Much more to MPEG plenty of other tricks employed. We only concentrate on some basic principles of video compression Earlier and MPEG 1 and 2 standards. with a brief introduction of ideas used in new standards such as MPEG-4 Advanced Video Coding . Image video and audio compression standards have been specified and released by two main groups since 1985 ISO International Standards Organisation JPEG MPEG. ITU International Telecommunications Union . CM3106 Chapter 12 MPEG Video Video Compression

• Điện - Điện tử
• BSc Multimedia
• Multimedia applications
• Multimedia data
• MPEG video
• Video compression
• Decoding motion of blocks
• Multimedia systems
• Format text
• Multimedia data compression
• Multimedia data basics
• Continuous media
• Digital signals
• Digital audio synthesis
• Digital audio signal processing
• Multimedia data acquisition
• Basic compression algorithms
• Modeling multimedia data
• Information theory
• Fourier transform
• Digital signal processing
• Digital audio
• Digitising sound
• Digital sampling
• Subtractive synthesis
• Wavetable synthesis
• MPEG 4 audio compression
• MIDI system
• MIDI messages
• Digital audio effects
• Effects types
• Digital audio filtering effects
• Discrete cosine transform
• Frequency domain
• Joint Photographic Expert Group
• Quantisation tables
• Differential Pulse Code Modulation
• MPEG 4 video
• MPEG 4 video compression
• Object based coding
• MPEG audio
• Adaptive predictive coding
• Audio compression
• Content based retrieval
• Image retrieval
• Audio fingerprints