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专利名称Patent Title
一种应用于3DTV与FTV系统的深度图编码压缩方法
Depth map encoding compression method for 3DTV and FTV system
点评:一种应用于3DTV与FTV系统的深度图编码压缩方法,通过将深度图分割成多个具有相同尺寸的宏块,并根据宏块的纹理特征,将宏块划分到边缘片层或非边缘片层,使得在对深度图进行编码时,可对边缘片层和非边缘片层中的宏块分别采用不同的量化参数进行量化,在对边缘片层中的宏块进行量化时采用了较小的量化参数,使得压缩重建后的深度图的边缘区域的精度得以保证,从而有利于提高经过虚拟视点绘制过程绘制出的虚拟视点图像的质量;而在对非边缘片层中的宏块进行量化时采用了较大的量化参数,以较小的绘制的虚拟视点图像的质量损失代价换取了较高的深度图的编码压缩率,可有效减轻传输带宽的压力。

Comment: The invention discloses a depth map coding compression method applied to 3DTV and FTV systems. The method is characterized in that a depth map is divided into a plurality of macro blocks with the samesize, and the macro blocks are divided to an edge slice layer or a non-edge slice layer according to the texture characteristics of the macro blocks, so that the macro blocks in the edge slice layerand the non-edge slice layer can be respectively quantized by using different quantization parameters when coding the depth map, wherein a less quantization parameter is adopted for quantizing the macro blocks in the edge slice layer to ensure the accuracy of the edge region of the depth map after compression and reconstruction so as to improve the quality of virtual viewpoint images rendered by virtual viewpoint rendering; and the macro blocks in the non-edge slice layer are quantized by using a larger quantization parameter to achieve higher coding compression rate of the depth map and lessquality loss of the rendered virtual viewpoint images, thereby effectively reducing the pressure on transmission bandwidth.
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