System and apparatus for low-complexity fine granularity scalable video coding with motion compensation
A coding and coded technology, applied in the field of scalable video coding, can solve problems such as complex double-loop structure
Inactive Publication Date: 2009-04-22
NOKIA CORP
View PDF1 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0018] This is significantly more complex than the dual-loop structure due to the additional motion compensation required in encoding each FGS layer
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
[0052] Various embodiments of the present invention provide a coding structure and method with improved coding efficiency and reduced coding and decoding complexity for scalable video coding. In particular, the case of encoding multiple FGS layers on top of discrete layers is considered.
[0053] To encode multiple FGS layers, a decoder-oriented dual-loop structure is used. On the decoder side, the new structure has similar complexity to the dual-loop structure while providing encoding performance similar to the multi-loop structure.
[0054] Various embodiments of the present invention also provide a method for preventing drift effects in case of partial decoding due to use of FGS layers for discrete inter-layer prediction.
[0055] The present invention aims to efficiently utilize temporal prediction in FGS layer coding to improve coding performance. However, incorporation of temporal information into the prediction for FGS layer coding can also lead to drift issues in cas...
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
A coding structure is configured to improve coding efficiency together with reduced encoding and decoding complexity for scalable video encoding. Especially, the case of coding multiple FGS layers on top of a discrete layer is considered. For coding multiple FGS layers, a decoder-oriented two-loop structure is used. At the decoder side, the new structure has similar complexity as the two-loop structure while providing similar coding performance as multi-loop structure. The coding structure and method is configured for preventing the drift effect in case of partial decoding due to the usage of FGS layer for inter-discrete-layer prediction, and aims at effectively utilizing temporal prediction in FGS layer coding to improve coding efficiency. The coding method can avoid additional transform operations; avoid applying in-loop de-blocking filter to FGS layers; and use simpler residual transform on FGS layers.
Description
technical field [0001] The present invention relates to the field of video coding, and more particularly, to scalable video coding. Background technique [0002] In video coding, the temporal redundancy that exists between video frames can be minimized by predicting video frames based on other video frames. These other frames are called reference frames. Time prediction can be implemented in different ways: [0003] - The decoder uses the same reference frame as that used by the encoder. This is the most common approach in traditional non-scalable video coding. In normal operation, there should not be any mismatch between the reference frame used by the encoder and the reference frame used by the decoder. [0004] - The encoder uses reference frames that are not available to the decoder. One example is that the encoder uses the original frame instead of the reconstructed frame as a reference frame. [0005] - The decoder uses reference frames that are only partially re...
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 Applications(China)
IPC IPC(8): H04N7/26
CPCH04N19/00781H04N7/26313H04N19/00896H04N7/50H04N7/26888H04N19/00321H04N19/00024H04N19/00545H04N7/26351H04N7/361H04N19/00442H04N19/00418H04N19/00266H04N19/00587H04N7/26297H04N7/26382H04N7/26271H04N19/00909H04N7/26015H04N7/26686H04N19/105H04N19/172H04N19/46H04N19/51H04N19/61H04N19/187H04N19/82H04N19/29H04N19/86H04N19/34
Inventor 王祥林M·卡尔克泽维茨J·里奇N·阿玛尔
Owner NOKIA CORP