Stereoscopic video bitrate control method based on binocular just-noticeable distortion

Abstract

The invention discloses a stereoscopic video bitrate control method based on binocular just-noticeable distortion. Bitrate control is performed through a viewpoint layer, a group of picture layer, a frame layer and a macro-block layer. In the viewpoint layer, a first group of picture is pre-coded to obtain bitrate allocation weight of left and right viewpoints; in the group of picture layer, the target number of bits is allocated for each group of picture according to the remaining number of bits in the viewpoints, a frame rate, the length of the groups of picture and a buffer occupancy rate, and an encoding quantization parameter of a key frame in each group of picture is determined; in the frame layer, the target number of bits is allocated for each frame except the key frame according to the remaining number of bits in the groups of picture and the buffer occupancy rate; and in the macro-block layer, the target number of bits allocated to each macro-block in each frame except the key frame is calculated, and an encoding quantization parameter for each macroblock is determined. The above bitrate control method allows bitrate control results to be more consistent with human visual characteristics under definitive bitrate conditions and can be used for obtaining good subjective quality.

Description

technical field [0001] The invention relates to a stereoscopic video rate control technology, in particular to a stereoscopic video rate control method based on binocular just perceivable distortion. Background technique [0002] With the rapid development and application of multimedia technology, 3D stereoscopic video technology is receiving more and more attention from academia and industry. 3D multimedia has become the main driving force in the electronic consumer market. In addition, with mobile phones supporting stereoscopic display, 3D multimedia entering mobile devices has become a reality. In the 3D stereoscopic video coding standard, disparity compensation prediction and motion compensation prediction are used to remove various redundancies to improve coding efficiency. However, if the 3D stereoscopic video technology is really used in practice, there are still many problems to be solved, and the bit rate control of 3D stereoscopic video coding is one of the proble...

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Problems solved by technology

[0003] However, the bit rate control scheme has not been given in the 3D stereoscopic video standard, and although the existing bit rate allocation or bit rate control methods for stereoscopic video have achieved certain results, there is still a problem with how to more accurately according to the human visual system ( Human Vision System, HVS) features to rate control is still not very clear

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