Method and system for determining variational optical flow based on mutual structure guiding filtering
A guided filtering and optical flow technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of blurred image and motion edges, low calculation accuracy, etc.
Active Publication Date: 2018-09-04
NANCHANG HANGKONG UNIVERSITY
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However, this kind of method is easy to cause the problem of image and motion edge blurring in complex scenes, large displacement motion, edge occlusion, etc. Therefore, the calculation accuracy of the current determination method of variational optical flow based on weighted median filtering is not high
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[0059] The following will clearly and completely describe the technical solutions in 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, not all, embodiments of the present invention. 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.
[0060] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0061] figure 1 It is a schematic flowchart of the method for determining the variational optical flow based on mutual structure guided filtering in the present invention. Such as figure 1 As shown, the method i...
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The invention discloses a method and system for determining a variational optical flow based on mutual structure guiding filtering. The method comprises: a to-be-processed image sequence is obtained;region division is carried out on the to-be-processed image sequence to obtain a mutual structural region and an inconsistent region; according an image mutual structure extraction factor, the mutualstructural region in the to-be-processed image sequence is extracted to obtain a mutual structural image sequence; a TV-L1 optical flow calculation model based on guiding filtering is obtained; according to the TV-L1 optical flow calculation model based on guiding filtering, an output optical flow value of each layer in the mutual structural image sequence is determined; and an optical flow chartof the to-be-processed image sequence is obtained based on the output optical flow value of each layer in the mutual structural image sequence. With the method and system provided by the invention, problems that the image and motion edge are too smooth in the image sequence optical flow calculation result can be solved; and the method and system have high calculation precision and adaptability forthe complicated edge image sequence in a complicated scene.
Description
technical field [0001] The invention relates to the field of image sequence optical flow calculation, in particular to a method and system for determining variational optical flow based on mutual structure guided filtering. Background technique [0002] Optical flow field is an important method for analyzing moving objects in sequence images. The optical flow field not only contains the motion information of the observed object, but also carries the information of the three-dimensional structure of the optical scene, so the optical flow field plays an important role in different fields. For example, in the field of computer vision, there are important applications in object segmentation, recognition, tracking, robot navigation, and shape information recovery. Optical flow field calculation has important practical significance in industrial and military applications, for example, in robot vision systems that complete various industrial or military tasks, space satellite trac...
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Login to View More IPC IPC(8): G06T7/136G06T7/11
CPCG06T7/11G06T7/136G06T2207/10016G06T2207/20016G06T2207/20024
Inventor 张聪炫葛利跃陈震黎明陈昊江少锋
Owner NANCHANG HANGKONG UNIVERSITY