New PDF release: Algorithms, Complexity Analysis and VLSI Architectures for

By Peter M. Kuhn

ISBN-10: 1441950885

ISBN-13: 9781441950888

ISBN-10: 1475744749

ISBN-13: 9781475744743

MPEG-4 is the multimedia commonplace for combining interactivity, normal and artificial electronic video, audio and computer-graphics. standard functions are: web, video conferencing, cellular videophones, multimedia cooperative paintings, teleteaching and video games. With MPEG-4 the next move from block-based video (ISO/IEC MPEG-1, MPEG-2, CCITT H.261, ITU-T H.263) to arbitrarily-shaped visible gadgets is taken. this crucial step calls for a brand new technique for process research and layout to satisfy the significantly better flexibility of MPEG-4.
movement estimation is a relevant a part of MPEG-1/2/4 and H.261/H.263 video compression criteria and has attracted a lot recognition in study and undefined, for the next purposes: it truly is computationally the main not easy set of rules of a video encoder (about 60-80% of the full computation time), it has a excessive impression at the visible caliber of a video encoder, and it isn't standardized, therefore being open to pageant.
Algorithms, Complexity research, and VLSI Architectures for MPEG-4Motion Estimation covers intimately each step within the layout of a MPEG-1/2/4 or H.261/H.263 compliant video encoder:

  • Fast movement estimation algorithms
  • Complexity research instruments
  • Detailed complexity research of a software program implementation of MPEG-4 video
  • Complexity and visible caliber research of quickly movement estimation algorithms inside of MPEG-4
  • Design area on movement estimation VLSI architectures
  • Detailed VLSI layout examples of (1) a excessive throughput and (2) a low-power MPEG-4 movement estimator.

Algorithms, Complexity research and VLSI Architectures for MPEG-4Motion Estimation is a crucial creation to varied algorithmic, architectural and method layout features of the multimedia typical MPEG-4. As such, all researchers, scholars and practitioners operating in picture processing, video coding or procedure and VLSI layout will locate this e-book of interest.

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Additional resources for Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation

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2 3 , , , , , , - - ~r. - .. - .. .... 01. I. 17: a) Spiral search [Ohm 95) p 152, b) diamond -shaped spiral search 40 CHAPTER 2 Note on VLSI-implementation As there exist many search strategies and research in scene-adaptive search techniques is continuing, one or several search strategies can be successfully implemented with high flexibility, using a (sequential) programmable processor. However, (parallel) VLSI support of one or several search schemes with high efficiency is extremely difficult.

6 - 4% PSNR degradation using MME, compared to the MAE criterion using the full-search method. A label-updating scheme for an efficient bit level maximum/minimum circuit that may be applicable for MME is described in [Lee 94a]. RBMAD (Reduced Bit Mean Absolute DiJJerence) In [Baek 96] the RBMAD (Reduced Bit Mean Absolute Difference) aims to reduce VLSI implementation costs. e. bit truncation) and therefore reduces the VLSI area and power consumption, while it enables a higher operating speed, as the difference unit and the adder can be of reduced wordlength.

2: 1 or 4: 1 [Liu 93: 1] or simple filter algorithms like pel averaging etc. [Cheng 96], are often used. A theoretical analysis of pel subsampling techniques is given in [Tek 95]. 0. 19: a) 2: 1, b) 4: 1 pel decimation: only the dark marked pel positions are used. 42 CHAPTER 2 A widely known algorithm for fast motion estimation using 4: 1 pel subsampling is described in [Liu 93:1] section II, where an alternating pel subsampling pattern is used, which makes it possible to take all pels of the search area successively into account.

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Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation by Peter M. Kuhn

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