Method and apparatus for encoding/decoding image
A technology of a decoding method and an encoding method, which is applied in the field of image encoding/decoding methods and devices, and can solve the problem that the channel cannot fully satisfy the amount of multimedia data, etc.
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Embodiment 1
[0253]Embodiment 1 relates to a prediction information and additions using inter-picture prediction modes (skip (SKIP) mode, merge (MERGE) mode, advanced motion vector prediction (AMVP) mode, decoder-side motion vector derivation (DMVD) mode) The prediction information of the inter-picture prediction mode is a method of generating weights and prediction blocks.
[0254]Before the weighting and prediction block generation method is specifically described, the prediction mode used to generate the prediction information required in this embodiment will first be described in detail. The skip (SKIP) mode, the merge (MERGE) mode, and the advanced motion vector prediction (AMVP) mode are the same as the above description. The decoder-side motion vector derivation (DMVD) mode refers to a method of generating prediction blocks by generating the same motion information without encoding / decoding motion information in a video encoding device and a video decoding device.
[0255]Figure 18 It is an exe...
Embodiment 2
[0294]In this embodiment, a method of generating weights and prediction blocks using the prediction information of the intra prediction mode and the prediction information of the added intra prediction mode will be described in detail.
[0295]Before the weighting and prediction block generation method is specifically described, the prediction mode used to generate the prediction information required in this embodiment will first be described in detail. The decoder-side Intra Mode Derivation (DIMD) mode refers to a method of generating prediction blocks by generating the same intra prediction mode without encoding / decoding intra prediction information in the video encoding device and the video decoding device.
[0296]Figure 22 It is a schematic diagram for explaining the template matching technology that uses the template area in the reconstruction area around the current block in the intra prediction mode.
[0297]inFigure 22 In, the template area is determined from the reconstruction area...
Embodiment 3
[0315]In this embodiment, the method of generating weights and prediction blocks using the prediction information of the inter prediction mode and the prediction information of the added intra prediction mode or the prediction information of the intra prediction mode and the added inter prediction information will be performed. Detailed explanation.
[0316]In the case where the main prediction information is an intra prediction mode generated by a normal inter (Normal Intra) mode or a decoder-side intra mode derivation (DIMD) mode, it can be used in skip (SKIP), merge (MERGE), After deciding the best prediction mode most suitable for auxiliary prediction information in Advanced Motion Vector Prediction (AMVP) and Decoder Side Motion Vector Derivation (DMVD) modes, the motion information of the corresponding mode is determined as auxiliary prediction information. The motion information of the auxiliary prediction information may be all transmitted in the same manner as the main predict...
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