Sixty-two technical presentations and 42 poster sessions comprise the April 1996 conference proceedings distinguished by its high level of expertise. A sampling of subject matter indicates the professional level of this conference: symmetric trellis coded vector quantization, lossless compression of grayscale images via context tree weighting, pattern based compression of text images, and optimal bit allocation for biorthogonal wavelet coding. Includes color photographs, equations, and graphs. Lacks an index. Annotation copyright by Book News, Inc., Portland, OR.
The aim of this reference work is to make African human rights law accessible to all those involved in or interested in human rights law on the continent in order to strengthen its impact. Primary documents are introduced and reproduced and presented in a coherent framework. The main institutions - public and private - dealing with human rights in Africa are identified and discussed. Comprehensive overviews of the international human rights legal regimes applicable to Africa, as well as country reports are provided. This book tries to contribute towards documenting, systemising and anchoring the African human rights system. The print edition is available as a set of two volumes (9789004138810).
viii • The second new chapter, Chapter 6, discusses video compression. The chapter opens with a general description of CRT operation and basic analog and digital video concepts. It continues with a general discussion of video compression, and it concludes with a description of MPEG-1 and H.261. • Audio compression is the topic of the third new chapter, Chapter 7. The first topic in this chapter is the properties of the human audible system and how they can be exploited to achieve lossy audio compression. A discussion of a few simple audio compression methods follows, and the chapter concludes with a description of the three audio layers of MPEG-1, including the very popular mp3 format. Other new material consists of the following: • Conditional image RLE (Section 1.4.2). • Scalar quantization (Section 1.6). • The QM coder used in JPEG, JPEG 2000, and JBIG is now included in Sec tion 2.16. • Context-tree weighting is discussed in Section 2.19. Its extension to lossless image compression is the topic of Section 4.24. • Section 3.4 discusses a sliding buffer method called repetition times. • The troublesome issue of patents is now also included (Section 3.25). • The relatively unknown Gray codes are discussed in Section 4.2.1, in connection with image compression. • Section 4.3 discusses intuitive methods for image compression, such as subs- pling and vector quantization.
