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Method of deriving motion information

A motion information and motion vector technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as reducing the efficiency of motion information compression, and achieve the goal of reducing computational complexity, improving coding efficiency, and maintaining coding efficiency. Effect

Active Publication Date: 2018-06-29
GENSQUARE LLC
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  • Abstract
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  • Application Information

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Problems solved by technology

Therefore, if the picture size is larger than that of a high-definition picture and allows various sizes to be used for motion estimation and motion compensation, the above-mentioned conventional compression method reduces the compression efficiency of motion information

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Embodiment Construction

[0028] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed below, but can be implemented in various ways. Accordingly, many other modifications and variations of the present invention are possible, and it is to be understood that the invention may be practiced otherwise than as specifically described within the scope of the disclosed concept.

[0029] The image encoding device and the image decoding device according to the present invention may be user terminals such as personal computers, personal mobile terminals, mobile multimedia players, smart phones or wireless communication terminals. The image encoding device and the image decoding device may include a communication unit for communicating with various devices, a memory for storing various programs and data for encoding or decoding images.

[0030] figure 1...

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Abstract

A method of deriving motion information. Provided is a method which extracts a merge index from a bit stream, constructs a merge candidate list using available spatial and temporal merge candidates, selects a merge predictor among merge candidates listed in the merge candidate list using the merge index, and sets motion information of the merge predictor as motion information of the current prediction unit. The temporal merge candidate includes a reference picture index and a motion vector, zero is set as the reference picture index of the temporal merge candidate, and a motion vector of a temporal merge candidate block of a temporal merge candidate picture is set as the motion vector of the temporal merge candidate. Accordingly, the coding efficiency of the motion information is improvedby including various merge candidates. Also, the computational complexity of an encoder and a decoder is reduced maintaining improvement of coding efficiency by adaptively storing motion information of reference picture and adaptively generating a temporal merge candidate.

Description

[0001] This case is a divisional application, and its parent case is the application titled "Method of Exporting Sports Information" filed on November 7, 2012, with application number 201210441592.1. technical field [0002] The present invention relates to a method for deriving motion information, and more particularly, to a method for deriving motion information in merge mode by using spatial and temporal merge candidates to construct a merge candidate list. Background technique [0003] Methods for compressing video data include MPEG-2, MPEG-4, and H.264 / MPEG-4 AVC. According to these methods, one picture is divided into a plurality of macroblocks to encode an image, a predicted block is generated using inter prediction or intra prediction, and the corresponding macroblock is encoded. The difference between the original block and the predicted block is transformed to generate a transformed block, and the transformed block is quantized using a quantization parameter and on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/119H04N19/159H04N19/176H04N19/196H04N19/463H04N19/503H04N19/52H04N19/593
CPCH04N19/52H04N19/503H04N19/159H04N19/176H04N19/119H04N19/593H04N19/463H04N19/198H04N19/513H04N19/124H04N19/51H04N19/137H04N19/105H04N19/109H04N19/129H04N19/13H04N19/139H04N19/61H04N19/86H04N19/91
Inventor 吴秀美梁文玉
Owner GENSQUARE LLC
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