Method and device for extracting and optimizing depth map of image
A technology of image depth and source image, which is applied in the field of image processing, can solve the problems of low precision and error of depth map, and achieve the effect of improving image quality and clear outline
Active Publication Date: 2014-01-01
HISENSE VISUAL TECH CO LTD
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[0005] The purpose of the present invention is to solve the problem in the prior art that the depth map of the key frame needs to be manually selected and extracted, resulting in low accuracy and errors in the extracted depth map, and provides a method and device for extracting and optimizing the image depth map
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[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] In order to facilitate the understanding of the embodiments of the present invention, further explanations will be given below with specific embodiments in conjunction with the accompanying drawings, which are not intended to limit the embodiments of the present invention.
[0030] by figure 2 As an example, describe in detail the image p...
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Embodiments of the present invention relate to a method and a device for extracting and optimizing a depth map of an image. The method comprises: obtaining a current source image and scenario relevance of each pixel in the current source image; performing continuous downsampling on the current source image, and obtaining scenario relevance of each pixel in each current downsampled source image; performing block-matching motion vector calculation between each pixel in the current downsampled source image and each corresponding pixel in a previous downsampled source image to obtain a motion vector value of each pixel in the current downsampled source image; accumulating the motion vector value of each pixel in the current downsampled source image, and extracting an initial depth value of each pixel from a cumulative sum of the motion vectors, the initial depth value forming an initial depth map; and performing continuous ultra-smooth filtering processing and upsampling processing on each pixel in the initial depth map by using the scenario relevance of each pixel in the source image and the scenario relevance of each pixel in each downsampled source image, to obtain a depth map of the source image.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for extracting and optimizing an image depth map. Background technique [0002] The three-dimensional display technology has developed rapidly in recent years, and the rapid rise of three-dimensional terminal display devices (Three Dimensions, 3D) such as 3D TVs and 3D game consoles has become an inevitable result of technological development. Due to the scarcity of 3D source resources and high cost, the 2D-to-3D technology, which converts ordinary two-dimensional (Two Dimensions, 2D) video frame sequences into 3D video frame sequences, has become a hot field in 3D stereoscopic display technology. [0003] In the 2D to 3D technology, the focus and difficulty is the extraction of the depth map of the 2D video image. The physical meaning of the depth map is: the distance between the content of different pictures in the 2D video frame sequence and the v...
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Login to View More IPC IPC(8): H04N13/00
CPCH04N7/26H04N19/59H04N19/513H04N19/597H04N19/80
Inventor 赵兴朋
Owner HISENSE VISUAL TECH CO LTD