By Luis Torres, Murat Kunt
ISBN-10: 1461285755
ISBN-13: 9781461285755
ISBN-10: 1461313376
ISBN-13: 9781461313373
In contemporary years there was an expanding curiosity in moment iteration photo and Video Coding options. those suggestions introduce new ideas from photograph research that vastly enhance the functionality of the coding schemes for terribly excessive compression. This curiosity has been extra emphasised by way of the long run MPEG four common.
moment new release photograph and video coding recommendations are the ensemble of ways offering new and extra effective picture representations than the normal canonical shape. hence, the human visible procedure turns into a basic a part of the encoding/decoding chain. extra perception to differentiate among first and moment new release could be received whether it is spotted that snapshot and video coding is essentially performed in steps. First, photograph info are switched over right into a series of messages and, moment, code phrases are assigned to the messages. equipment of the 1st iteration positioned the emphasis at the moment step, while equipment of the second one iteration positioned it at the first step and use to be had effects for the second one step. due to together with the human visible approach, moment iteration should be additionally noticeable as an technique of seeing the picture composed through assorted entities known as items. this suggests that the picture or series of pictures have first to be analyzed and/or segmented so one can locate the entities.
it really is during this context that we have got chosen during this e-book 3 major techniques as moment new release video coding options:
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Extra resources for Video Coding: The Second Generation Approach
Sample text
Object-oriented analysissynthesis coding of moving images. Signal Processing: Image Communication, 1(2):117-138, October 1989. [25] A. N. G. Haskell. Digital pictures: representation and compression. Plenum Press, New York, 1988. [26] D. Pearson. Developments in model-based video coding. Proceedings of the IEEE, 83(6):892-906, June 1995. [27] H. Peterson, S. A. Rajala, and E. J. Delp. Image segmentation using human visual system properties with applications in image compression. In SPSE/SPIE Symposium on Electronic Imaging, volume 1077-20, Los Angeles, USA, January 1989.
However, the predictive paradigm, in the form of temporal prediction, plays an important role in pixel-based video compression standards. We describe this paradigm later in detail. Two international video compression standards are based on the predictive approach. 80 [20) makes use of a simple spatial predictive scheme to compress the TV signal for its contribution quality transmission at 140 Mb/s. ISO standard JPEG [13) includes an algorithm for lossless compression which is based on the selection of the best of seven possible predictions (see Figure 4).
A basic description of the eight function ali ties with special emphasis in the ones related to content-based multimedia data access and content-based scalability are described in the following: 1. Content-based multimedia data access tools. MPEG-4 shall provide data access based on the audio-visual content. 2. Content-based manipulation and bit stream editing. MPEG-4 shall provide an MPEG-4 Syntactic Description Language and coding schemes to support content-based manipulation and bitstream editing withouth the need for transcoding.
Video Coding: The Second Generation Approach by Luis Torres, Murat Kunt
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