Real-Time Video Compression

Techniques and Algorithms
1997
ISBN: 978-0-7923-9787-8
Verlag: Springer US

Buch, Englisch, Band 376, 164 Seiten, Format (B × H): 160 mm x 241 mm, Gewicht: 433 g

Reihe: The Springer International Series in Engineering and Computer Science

Real-Time Video Compression: Techniques and Algorithms introduces the XYZ video compression technique, which operates in three dimensions, eliminating the overhead of motion estimation. First, video compression standards, MPEG and H.261/H.263, are described. They both use asymmetric compression algorithms, based on motion estimation. Their encoders are much more complex than decoders. The XYZ technique uses a symmetric algorithm, based on the Three-Dimensional Discrete Cosine Transform (3D-DCT). 3D-DCT was originally suggested for compression about twenty years ago; however, at that time the computational complexity of the algorithm was too high, it required large buffer memory, and was not as effective as motion estimation. We have resurrected the 3D-DCT-based video compression algorithm by developing several enhancements to the original algorithm. These enhancements make the algorithm feasible for real-time video compression in applications such as video-on-demand, interactive multimedia, and videoconferencing. The demonstrated results, presented in this book, suggest that the XYZ video compression technique is not only a fast algorithm, but also provides superior compression ratios and high quality of the video compared to existing standard techniques, such as MPEG and H.261/H.263. The elegance of the XYZ technique is in its simplicity, which leads to inexpensive VLSI implementation of any XYZ codec.
Real-Time Video Compression: Techniques and Algorithms can be used as a text for graduate students and researchers working in the area of real-time video compression. In addition, the book serves as an essential reference for professionals in the field.

Zielgruppe

Research

Autoren/Hrsg.

Furht, Borko

Westwater, Raymond

Fachgebiete

• Technische Wissenschaften Elektronik | Nachrichtentechnik Nachrichten- und Kommunikationstechnik Fernsehtechnik
• Technische Wissenschaften Elektronik | Nachrichtentechnik Elektronik Mikroprozessoren
• Mathematik | Informatik EDV | Informatik Technische Informatik Externe Speicher & Peripheriegeräte
• Mathematik | Informatik EDV | Informatik Technische Informatik Netzwerk-Hardware
• Mathematik | Informatik EDV | Informatik EDV & Informatik Allgemein
• Mathematik | Informatik EDV | Informatik Technische Informatik Systemverwaltung & Management

Inhaltsverzeichnis

The Problem of Video Compression.- The MPEG Video Compression Standard.- The H.261/H.263 Compression Standard for Video Telecommunications.- The XYZ Video Compression Algorithm.- Discrete Cosine Transform.- Quantization.- Entropy Coding.- VLSI Architectures for the XYZ Video Codec.- Experimental Results Using XYZ Compression.- Conclusion.