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Method for detecting heat source center in three-dimensional space

A three-dimensional space, center detection technology, applied in the field of computer vision, can solve problems such as large amount of calculation and expensive equipment

Pending Publication Date: 2019-12-24
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Generally, laser cameras are used to obtain the depth data of three-dimensional objects, which can obtain accurate surface descriptions, but the equipment is relatively expensive, and the method based on depth data has a large amount of calculation.

Method used

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  • Method for detecting heat source center in three-dimensional space
  • Method for detecting heat source center in three-dimensional space
  • Method for detecting heat source center in three-dimensional space

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the specific implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the method of the present invention is not limited.

[0033] attached figure 1 It is the main flow chart of the method of the present invention, and the overall scheme is infrared image preprocessing, target detection of two-dimensional images, conversion of two-dimensional coordinates to three-dimensional coordinates. The specific steps are as follows:

[0034] (1) Calibrate the ideal space center as the origin of the space coordinates, and use this to rotate two angles arbitrarily, take an infrared picture at each of these two positions, and then extract the R channel values ​​of the two infrared pictures to obtain a new picture, Then cut the new picture according to small squares of a certain size, and calculate the average value of ...

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Abstract

The invention discloses a method for detecting a heat source center in the three-dimensional space, which belongs to the field of computer vision, and solves the problem of detecting the coordinates of the heat source center in the three-dimensional space. The method comprises the steps of firstly, calibrating an ideal space center as a space coordinate origin; rotating two angles at will; shooting an infrared picture at each of the two positions; then extracting the R channel values of the two infrared pictures to obtain a new picture; cutting the new picture according to the small checks ofa certain size, calculating an R channel average value of each small check, sorting the small checks according to the R values after calculation, calculating the size of a frame of a target heat source according to a heat source proportion condition, at the same time, obtaining the coordinates of the heat source on a two-dimensional image. After the coordinate of the heat source center on a two-dimensional plane is obtained, the depth information can be calculated according to the corresponding geometrical relationship, and finally the coordinate position of the heat source in the three-dimensional space is obtained.

Description

technical field [0001] The invention relates to the field of computer vision, and more specifically, to a method for detecting the center of a heat source in a three-dimensional space. Background technique [0002] In three-dimensional space, in order to accurately obtain the spatial coordinates of the center of the heat source, it is necessary to perform object detection in three-dimensional space. In the past thirty years, image recognition is mainly aimed at the recognition of digitized grayscale images. In recent years, it has become one of the new development directions of image recognition to recognize three-dimensional objects through distance images (or three-dimensional images, depth images). Distance data can be obtained from active or passive sensors, given in digital form, and the quality of distance data is gradually improving. The depth image data contains the depth information of the point, that is, the distance from the focal plane of the sensor to the targ...

Claims

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Application Information

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IPC IPC(8): G06T7/66
CPCG06T7/66G06T2207/10048
Inventor 宫大为何志恒叶小龙李晓宁代小林方子赟
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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