Encoding and decoding method and encoding and decoding device for depth image

A technology of depth image and decoding method, which is applied in the field of wireless communication, can solve the problems of increasing codec system design overhead, limited maximum prediction size and maximum size, and reduced coding efficiency

Active Publication Date: 2013-08-07
HUAWEI TECH CO LTD
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Problems solved by technology

However, in the prior art, the maximum prediction size (that is, the maximum size of an image block for SDC) is limited, and the size of an image block may be larger than the maximum prediction size, for example, the size of an image block is 64*64, and The maximum prediction size is 32*32
At this time, when performing SDC on the image block, the codec system needs to introduce an image block

Method used

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  • Encoding and decoding method and encoding and decoding device for depth image
  • Encoding and decoding method and encoding and decoding device for depth image
  • Encoding and decoding method and encoding and decoding device for depth image

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[0153] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0154] figure 1 It is a schematic flowchart of a depth image decoding method provided according to an embodiment of the present invention.

[0155] 101. Obtain an SDC flag bit and determine to perform SDC decoding.

[0156] 102. Determine the size of the image block and the maximum prediction size.

[0157] 103. Determine the intra prediction mode of the image block.

[0158] Specifically, the prediction mode that the image block can use when performing SDC ...

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Abstract

The embodiment of the invention provides an encoding and decoding method and equipment for a depth image. The method comprises the following steps of determining to perform SDC decoding according to a depth encoding mode SDC flag bit; determining the size of an image block and a maximum predicted size; determining an inner-frame prediction mode; and under the condition that the size of the image block is larger than the maximum prediction size, partitioning the image block to obtain N partitioned image blocks, and performing SDC decoding on the N partitioned image blocks by using the inner-frame prediction mode. Due to the adoption of the method and the equipment, the encoding and decoding processing efficiency of the depth image can be increased.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of wireless communication, and more specifically, to a codec method and a codec device for a depth image. Background technique [0002] There are two types of 3D video images: view images and depth images. A view image contains information about the image itself, such as color information. A depth image contains depth information of a view image, such as contour information. During the transmission of 3D video images, in order to reduce the bandwidth occupied by video transmission, it is necessary to encode the view image and the depth image, so as to reduce the size of 3D video image data. [0003] Simplified Depth Coding (Simplified Depth Coding) is a method for encoding depth images. When the image block of the depth image that needs to be subjected to SDC is determined, the encoding end needs to select an intra-frame prediction mode and determine the prediction data of the image ...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N7/46H04N19/126H04N19/182H04N19/88
CPCH04N19/597H04N19/593H04N19/159H04N19/182H04N19/50H04N19/61
Inventor 郑萧桢
Owner HUAWEI TECH CO LTD
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