Robust vanishing point detection method and device based on response diagram and clustering

A detection method and detection algorithm technology, applied in 2D image generation, image enhancement, image analysis, etc., can solve problems such as the inability to improve the accuracy of robust vanishing points, achieve the elimination of a large number of interference, reduce the amount of calculation, and reduce the calculation volume effect

Active Publication Date: 2021-04-06
自行科技(武汉)有限公司
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Problems solved by technology

[0005] In view of this, the present invention proposes a robust vanishing point detection method and device based on response graph and clustering, aiming to solve the technical problem that the prior art cannot improve the accuracy of robust vanishing point detection

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  • Robust vanishing point detection method and device based on response diagram and clustering
  • Robust vanishing point detection method and device based on response diagram and clustering
  • Robust vanishing point detection method and device based on response diagram and clustering

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0036] Such as figure 1As shown, the device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Key...

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Abstract

The invention provides a robust vanishing point detection method and device based on a response diagram and clustering. The method comprises the following steps: obtaining an original image, and preprocessing the original image to obtain a preprocessed image; detecting the preprocessed image through an LSD line segment detection algorithm to obtain information of effective line segments, filtering the effective line segments according to the information to obtain roughing line segments, and performing primary clustering on the roughing line segments to obtain clustered roughing line segments as alternative line segments; calculating a confidence value of each type in the alternative line segments, and obtaining two types of line segments used for calculating vanishing points according to the confidence values and a total response value of the type; and creating a response graph by using the original image, processing the two types of line segments used for calculating the vanishing points, drawing the processed line segments on the response graph, and obtaining the vanishing points according to the drawn response graph. According to the method, the robustness and accuracy of the algorithm are improved through multiple clustering means, the strength and confidence coefficient functions of the line segments are defined, a large amount of interference is eliminated, the calculated amount is reduced, the detection efficiency and speed are improved, and the robustness is high.

Description

technical field [0001] The invention relates to the technical field of computer software, in particular to a robust vanishing point detection method and device based on response graphs and clustering. Background technique [0002] The vanishing point is the point where two or more parallel lines extend to the distant horizon until they intersect in the linear perspective transformation. It is an attribute that must exist in the image collected by the camera. There are many functions of vanishing point, for example, it is used to constrain the direction of lines in the drawing process to make the painting more realistic; in the field of automatic driving, it can be used to constrain the lane line equation and calibrate the extrinsic parameters of the camera (the extrinsic parameters of the calibrated camera can be used for monocular distance measurement). [0003] General vanishing point detection often adopts Hough straight line transformation or probability Hough straight ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/20G06T7/00G06T11/20G06K9/62
CPCG06T5/002G06T5/20G06T7/0002G06T11/203G06T2207/20028G06F18/23
Inventor 伍渊谌璟孙庆新
Owner 自行科技(武汉)有限公司
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