By Byung-Gyu Kim, Kalyan Goswami
This booklet discusses intimately the elemental algorithms of video compression which are prevalent in glossy video codec. The authors dissect advanced standards and current fabric in a fashion that will get readers speedy up to the mark by way of describing video compression algorithms succinctly, with no going to the mathematical info and technical standards. For speeded up studying, hybrid codec constitution, inter- and intra- prediction ideas in MPEG-4, H.264/AVC, and HEVC are mentioned jointly. moreover, the most recent learn within the quickly encoder layout for the HEVC and H.264/AVC is additionally included.
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Extra resources for Basic Prediction Techniques in Modern Video Coding Standards
A) The CTB structure of frame no. 5 and (b) the CUs which are encoded as skip mode of frame no. 5 are shown here using blue color 32 % CUs are encoded as skip. If we consider the overall scenario (average of all QPs and CU sizes), then more than 58 % CUs are encoded as skip mode. Apart from that, there are two observations that we want to highlight from this table for all the sequences: 1. the percentage of skip is higher for the larger size of CUs than the lower one 2. generally, for larger QP values more amount of CUs are encoded as skip mode.
Video Technol. 13(7), 560–576 (2003) 2. J. R. J. Han, T. Wiegand, Overview of the High Efficiency Video Coding (HEVC) standard. IEEE Trans. Circ. Syst. Video Technol. 22(12), 1649–1668 (2012) 3. -L. -H. J. 264/MPEG-4 AVC. IEEE Trans. Image Proces. 1 Motion Estimation In the first two chapters, a decent overall description of latest hybrid video codec was explained. As we have discussed earlier, that there are mainly two kinds of prediction techniques are used in the modern hybrid video codec. These are interand intra-prediction techniques.
If it is analyzed more deeply, then the interprediction takes higher encoding time than the intra. Now, in terms of fast encoding techniques, these modules have the highest priority for exploration. 264/AVC can be predicted in different modes in the inter-prediction. However, the concepts of the prediction modes in these two standards are quite similar. In the HEVC, the prediction unit (PU) is treated separately with a different abstraction. Now the different prediction modes for the HEVC standard are shown in Fig.