Binocular-vision-based rapid detection method for three-dimensional information of space object

A technology for three-dimensional information and space objects, applied in image data processing, instruments, calculations, etc., can solve the problems of high equipment price, real-time performance and matching accuracy cannot be satisfied at the same time, and achieve the improvement of matching speed and real-time three-dimensional information detection. Effect

Inactive Publication Date: 2016-08-24
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] In view of the above technical problems, the present invention provides a binocular vision-based rapid three-dimensional information detection method of space objects, which can overcome the problems of expensive equipment and unsatisfac

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  • Binocular-vision-based rapid detection method for three-dimensional information of space object
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  • Binocular-vision-based rapid detection method for three-dimensional information of space object

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[0033] The purpose of the present invention will be further described in detail through specific examples below, and the examples cannot be repeated here one by one, but the implementation of the present invention is not therefore limited to the following examples.

[0034] Such as figure 2 Shown, a kind of space object three-dimensional information rapid detection method based on binocular vision, adopts two cameras that are placed on the cloud platform 3 in a forward parallel manner and a PC 4 to form a binocular vision system, the left camera 1, the right camera 2 is fixed on the pan-tilt 3 in a forward parallel manner, and the two cameras are connected with the PC 4 equipped with the required programming and processing software to jointly form a binocular vision detection system (see figure 1 ). Include the following steps:

[0035] S1. Camera calibration: At present, binocular vision stereoscopic imaging models are generally divided into linear models that do not consi...

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Abstract

The invention discloses a binocular-vision-based rapid detection method for three-dimensional information of a space object. The method comprises: (1). Two cameras are calibrated to obtain an internal parameter matrix and an external parameter matrix; (2), the two cameras collect an image of a measured object simultaneously; (3), according to the calibration result, a re-projection matrix is calculated and three-dimensional correction is carried out on the image; (4), filter and smoothing processing is carried out on the corrected image and edge extraction is carried out on the filtered image; (5), on the basis of an improved edge-feature-based rapid matching algorithm, three-dimensional matching is carried out on the image to obtain a plurality of matching point pairs; and (6), according to the internal and external parameter matrixes obtained by camera calibration, the re-projection matrix, and a parallax principle, three-dimensional information of the measured object is restored. According to the invention, the traditional feature-point-based matching algorithm is improved. The original precision is kept and the matching speed is increased; and real-time three-dimensional information detection can be realized.

Description

technical field [0001] The invention relates to the field of machine vision, in particular to a method for rapidly detecting three-dimensional information of space objects based on binocular vision. Background technique [0002] At present, sensors such as laser, radar, and sonar are commonly used in 3D measurement. However, since the detection principles of the above sensors are based on pulse ranging, they are more sensitive to external noise and are prone to false detection due to magnetic field interference, and the price is relatively high. . Compared with ultrasonic, radar and other sensors, visual sensors are not easy to interfere with each other, and can quickly obtain a large amount of image information, even the detailed features of the target, and the price is relatively low. hotspot. [0003] Binocular vision is a major branch of machine vision. Because it can simulate the human eye, it has the function of stereoscopic perception of the three-dimensional world....

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T2207/10021
Inventor 翟敬梅黄锦洲
Owner SOUTH CHINA UNIV OF TECH
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