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Extraction method for image road surface region

A technology of road surface area and extraction method, which is applied in the field of image processing, can solve the problem of unclear edge information of the road surface, and achieve the effect of small brightness, easy segmentation, and simple algorithm

Active Publication Date: 2017-05-03
XIDIAN UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for extracting the road surface area in an image, which can overcome the problem that the edge information of the road surface is not obvious, and extract the road surface area by using the brightness information

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  • Extraction method for image road surface region
  • Extraction method for image road surface region
  • Extraction method for image road surface region

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038]In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0039] figure 1 F...

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Abstract

The invention discloses an extraction method for an image road surface region. The method comprises the following steps of inputting an original image and obtaining coarse estimation transmittance of each pixel in the original image to obtain a coarse estimation transmittance image; carrying out guided filter optimization on the coarse estimation transmittance image to obtain a guided filter image with an edge-preserving effect; correcting the coarse estimation transmittance image; and obtaining a differential chart through a differential operation and converting to a binary image, and realizing extraction of the road surface region after carrying out region segmentation on the binary image. The method has simple algorithm and higher efficiency, row coordinates and brightness are taken as constraint factors, so that the influence of other dark regions is reduced, the road surface region in the differential chart is guaranteed to have obvious brightness and be easily divided, and the road surface region can be quickly and accurately extracted under the condition that the road edge is not obvious.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method for extracting partial areas in an image, and is especially suitable for extracting areas where edge information such as road surfaces in the image is not obvious. Background technique [0002] There are more and more imaging devices in life, and people are becoming more and more accustomed to obtaining information with images, and image processing technology has emerged as the times require. Image segmentation is an important technology in image processing. Due to the diversity of images, there is no segmentation algorithm that can be applied to all images, and there is no standard for judging the quality of segmentation algorithms. Due to the limitation of the generality of the algorithm, only specific methods can be proposed to solve specific problems. At present, there are three main categories of image segmentation algorithms: threshold segment...

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Application Information

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IPC IPC(8): G06T7/11G06T7/136
CPCG06T2207/30184
Inventor 李良超张涛曹运华
Owner XIDIAN UNIV
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