Coding mode selection method applied to gradable spatial video coding
A coding mode and video coding technology, applied in the field of macroblock coding mode selection, can solve the problems of high computational complexity, affecting the coding speed of the SVC spatial enhancement layer, and high coding implementation complexity, so as to reduce the complexity and ensure the coding compression efficiency. , the effect of increasing the speed
Inactive Publication Date: 2011-01-05
BEIJING UNIV OF POSTS & TELECOMM
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In this method of encoding mode selection, iteratively calculates the rate-distortion cost for all encoding modes, which requires high computational complexity, affects the speed of SVC spatial enhancement layer encoding, and makes the encoding implementation very complex
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a coding mode selection method for SVC, including: all coding modes are classified into three subsets in advance, corresponding traversal priority is set for all the coding modes according to interlayer quantization parameter difference of spatial enhancement layer and the reference layer at the current macro block of coding spatial enhancement layer; the corresponding traversal priority is set for all the coding modes, traversal of all the available coding modes is carried out from high priority to low priority to determine RDcost of the current traversed coding modes,and whether the RDcost is less than preset threshold or not is judged, if yes, the current traversed coding mode is taken as the coding mode of the current macro block and the traversal is stopped, if not, available coding modes are traversed; if the RDcost of all the available coding modes are not less than the threshold, the coding mode with lowest RDcost is selected as the coding mode of the current macro block. By applying the invention, the speed of coding mode selecting can be improved without influencing coding compression efficiency much.
Description
A Coding Mode Selection Method for Spatial Scalable Video Coding technical field The present invention relates to video compression coding technology, in particular to a method for selecting a macroblock coding mode for space scalable video coding (SVC). Background technique Scalable Video Coding (SVC, Scalable Video Coding) is a technology that has emerged in the past 20 years to cope with the diversity of modern video transmission systems and terminals. Scalability means that the video bit stream can be selectively "discarded" according to certain rules, so as to adapt to different network conditions and terminal performance requirements. Currently, the latest SVC standard is formulated by the Joint Video Working Group (JVT, Joint Video Team) and used as Appendix G of the H.264 / AVC (Advanced Video Coding) standard, and is generally called H.264 / SVC. The present invention focuses on the technology of H.264 / SVC, so in the following description, unless otherwise specified...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/50H04N7/26H04N19/103H04N19/147H04N19/33
Inventor 杨波张文豪门爱东常侃陈晓博明阳阳韩睿
Owner BEIJING UNIV OF POSTS & TELECOMM