By Wen Gao, Siwei Ma
This booklet provides an outline of the cutting-edge in video coding know-how. particularly, it introduces the instruments of the AVS2 typical, describing how AVS2 will help to accomplish an important development in coding potency for destiny video networks and functions via incorporating smarter coding instruments similar to scene video coding. positive factors: introduces the fundamental strategies in video coding, and provides a quick heritage of video coding know-how and criteria; experiences the coding framework, major coding instruments, and syntax constitution of AVS2; describes the major applied sciences utilized in the AVS2 normal, together with prediction coding, rework coding, entropy coding, and loop-filters; examines effective instruments for scene video coding and surveillance video, and the main points of a promising clever video coding procedure; discusses optimization applied sciences in video coding structures; presents a evaluate of picture, video, and 3D content material caliber overview algorithms; surveys the new study subject matters in video compression.
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Additional resources for Advanced Video Coding Systems
Sample text
Are scanned in the second round. Between the two scan lines, there is an interval called horizontal retrace, which consists of front porch, sync, and back porch, as shown in Fig. 6. The front porch is between the end of each transmitted line of picture and the leading edge of the next line sync pulse, which 24 2 Video Coding Basic Principle purposes to allow voltage levels to stabilize and prevent interference between picture lines. The back porch is the portion of a scan line between the rising edge of the horizontal sync pulse and the start of active video.
2. 1 Color Spaces 19 Fig. 2 Color sensitivity. 0 (http://creativecommons. 2 RGB, XYZ, and YUV Color Spaces RGB color space is based on an additive RGB color model, which describes how to mix red, green, and blue three colors to produce a given color (Fig. 3). As the RGB color model is simple for implementation, it has been widely used for sensing, representation, and display of images in electronic systems, such as televisions and computers. However, the RGB color model is device dependent, and different manufacturers may define different RGB color spaces, such as sRGB, created cooperatively by HP and Microsoft, and Adobe RGB, etc.
Temporal motion vector prediction is used for temporal derivation of Skip/Direct mode in B frames. Spatial-temporal combined motion vector prediction is used for temporal derivation of Skip/Direct mode in F frames. For other cases, median prediction is used. In AVS2, the motion vector is in quarter-pixel precision for the luminance component, and the subpixel is interpolated with an 8-tap DCT interpolation filter (DCT-IF) (Lv et al. 2013). For the chrominance component, the motion vector derived from luminance with 1/8 pixel precision and a 4-tap DCT-IF is used for subpixel interpolation (Wang et al.