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Depth image estimating method of binocular stereo video

A binocular stereo, depth image technology, applied in the field of depth image estimation, can solve the problems of error, low accuracy, affecting the quality of reconstructed images of real scenes, etc.

Inactive Publication Date: 2012-06-27
SHANGHAI UNIV
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Problems solved by technology

Although these methods can obtain dense depth images, mismatches occur in low-textured areas, occluded areas, and the edges of objects, resulting in corresponding errors in the depth images obtained by converting the disparity images, which will affect the real Scene reconstruction image quality, how to improve the accuracy of the acquired depth image has become a technical difficulty that needs to be solved urgently

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  • Depth image estimating method of binocular stereo video
  • Depth image estimating method of binocular stereo video
  • Depth image estimating method of binocular stereo video

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Embodiment Construction

[0069] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0070] This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the protection scope of the present invention is not limited to the following embodiments.

[0071] The depth image estimation method of this binocular stereo video is as follows (see attached Figure 1-4 ):

[0072] The operation steps of this method are as follows:

[0073] (1) Acquisition of binocular stereo video images: Acquire binocular stereo video images from binocular stereo cameras—left and right viewpoint images.

[0074] (2) Disparity estimation: Use the stereo area matching method to estimate the left-to-right disparity map sequence and the right-to-left disparity map sequence of the binocular stereo video frame by frame; the data items of the energy function take into account the in...

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Abstract

The invention discloses a depth image estimating method of a binocular stereo video, which comprises the following steps of: (1) collecting a binocular stereo video image from a binocular stereo camera; (2) performing parallax estimation based on graph cut stereo matching on the binocular stereo video image; (3) performing uniformity check on a parallax image obtained by the graph cut stereo matching, and deleting the unreliable matching by self-adapting matching to reduce the wrong matching of the depth image; (4) converting the parallax image into a depth image according to the relation of the parallax and the depth; (5) performing correction optimization on the obtained depth image by a multilateral filter; and (6) outputting the depth image to finish the depth image estimation of the binocular stereo video. The method disclosed by the invention has the advantages of effectively eliminating the errors in the depth image estimation, and finally obtaining an accurate and dense depth image so as to satisfy the demand of rebuilding image quality based on a real scene.

Description

technical field [0001] The invention relates to a method for estimating a depth image, in particular to a method for estimating a depth image of binocular stereoscopic video. Background technique [0002] With the rapid development and wide application of digital video, people have higher and higher requirements for video image quality and content diversity. The traditional two-dimensional image, which has lost the third-dimensional depth information, can no longer meet people's visual requirements. Stereoscopic video technology that recovers depth information from binocular disparity is developing rapidly. [0003] There are mainly two existing depth image estimation methods: one is to obtain the depth directly through the depth camera, and the other is to extract the depth from the input video through the stereo matching algorithm. The principle of the depth camera is to use the front end of the light source to emit infrared light, by receiving the reflected infrared lig...

Claims

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Application Information

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IPC IPC(8): H04N13/00G06T7/00
Inventor 张秋闻张兆扬安平张艳
Owner SHANGHAI UNIV
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