3DV video encoding method and encoder

Abstract

The invention provides a 3DV video encoding method and an encoder. The method comprises the steps: base layer 3DV encoding operation is conducted to a color image and a depth image of a leftmost viewpoint and a rightmost viewpoint so that a base layer code stream is obtained; the base layer code stream is decoded so that color image reconfiguration and depth image reconfiguration of the leftmost viewpoint and the rightmost viewpoint are obtained; viewpoint synthesis is conducted according to the color image reconfiguration and the depth image reconfiguration of the leftmost viewpoint and the rightmost viewpoint so that a color image and a depth image of at least one synthesized middle viewpoint are obtained; a color image and a depth image of at least one middle viewpoint are compared with the color image and the depth image of the at least one synthesized middle viewpoint so that a color image residual error and a depth image residual error of the at least one middle viewpoint are obtained through calculation; reinforced layer 3DV encoding operation is conducted to the color image residual error and the depth image residual error of the at least one middle viewpoint so that a reinforced layer code stream is obtained; and the base layer code stream and the reinforced layer code stream are combined to be an extensible code stream and sent. The 3DV video encoding method and the encoder have the advantages of being high in encoding efficiency and good in encoding quality.

Description

technical field [0001] The invention belongs to the field of video technology, and in particular relates to a 3DV video encoding method and an encoder. Background technique [0002] 3DV is a new generation of stereoscopic video coding standards being developed internationally. 3DV uses the video format of the color image of multiple viewpoints plus the corresponding depth image, and the color image of any viewing angle can be obtained through the method of viewing angle synthesis. This encoding method can obtain views from any viewpoint while saving the bit rate as much as possible. [0003] In practical applications, the depth map acquisition methods of natural scenes can be divided into two types: active acquisition and passive acquisition. The active acquisition method refers to the direct acquisition of 3D depth information in the scene through hardware devices such as depth cameras. This method can obtain depth information quickly, but limited by the acquisition tech...

AI Technical Summary

Problems solved by technology

[0005] 3DV Due to its special video format, traditional scalable coding methods for color images are less used

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