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Stereo image dense matching method based on global block optimization

A stereoscopic image and dense matching technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as parallax steps

Active Publication Date: 2019-09-10
WUHAN ENG SCI & TECH RESINST
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Problems solved by technology

The present invention can effectively solve the problem of "parallax ladder" which is common in the dense matching of traditional stereoscopic images, so that the surface of the model after matching is continuous and smooth

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  • Stereo image dense matching method based on global block optimization
  • Stereo image dense matching method based on global block optimization
  • Stereo image dense matching method based on global block optimization

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Embodiment Construction

[0046] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0047] Aiming at the common disparity ladder problem in the traditional dense matching method of stereoscopic images, the present invention proposes a dense matching method of stereoscopic images based on global block optimization. This method can effectively solve the above-mentioned disparity ladder problem, and obtain a continuous and smooth disparity map of the model surface. The workflow of the present invention is as figure 1 As shown, it includes the following steps:

[0048] Step 1: In the stereo image, select the reference image and the reference image, and use the traditional stereo image dense matching method to obtain the disparity map of the initial match;

[0049] Stereoscopic images are two images that make up stereoscopic vision. Images can be satellite images, aerial images, UAV images, etc. First, select the reference image and the r...

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Abstract

The invention relates to a global block optimization-based stereoscopic image dense matching method. The method comprises the steps of 1, selecting a standard image and a reference image, and obtaining an initial matching parallax graph by adopting a conventional stereoscopic image dense matching algorithm; 2, by adopting a superpixel segmentation technology, segmenting the reference image into a series of mutually adjacent blocks; 3, constructing data items in a global energy function; 4, constructing smooth items in the global energy function; and 5, according to the data items and the smooth items, establishing the global energy function, resolving the function by adopting a least square method to obtain a global optimal solution, and generating an accurate, continuous and smooth matching parallax graph. According to the method, the problem of ''parallax steps'' ubiquitous in the conventional stereoscopic image dense matching algorithm can be effectively solved; and in the generated matching parallax graph, the model surface is continuous and smooth, and the three-dimensional reconstruction precision is high.

Description

technical field [0001] The present invention relates to the technical field of stereoscopic image dense matching, in particular to a stereoscopic image dense matching method based on global block optimization. [0002] technical background [0003] Stereo image dense matching refers to the process of matching points with the same name between two images pixel by pixel according to a certain matching cost optimization method. According to different optimization methods, stereo image dense matching methods can be divided into: local dense matching, semi-global dense matching and global dense matching. Stereo image dense matching is one of the core technologies in the fields of 3D modeling, virtual reality, computer vision, etc. Applications such as virtual e-commerce. [0004] The current mainstream 3D modeling technologies include: manual modeling technology, laser scanning technology, structured light technology and stereo image dense matching technology. Compared with the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/32G06T7/33
Inventor 黄旭周刚高其双胡堃陆正武蔡刚山范超
Owner WUHAN ENG SCI & TECH RESINST
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