Method for precisely measuring shoe length and stride of target person in video

Abstract

The invention discloses a method for precisely measuring the shoe length and stride of target person in video. The method comprises the following steps: (1) selecting and performing screenshot storage to an original video including the target person, wherein tips and heels of feet of the target person can be seen in the screenshot, two feet of the target person are contacted with the ground and one foot is stepped onto the ground firmly; (2) selecting at least two reference persons which are required that the sizes of shoes of each person are different and close to the size of feet of the target person as far as possible; (3) by adopting a variable control method and a variable method, accurately positioning the position of two feet and position of shoes of the target person by utilizing the original video screenshot including the target person; (4) conducting scene restoration experiment; and (5) measuring the video images obtained from the scene restoration experiment. Images are recovered by adopting a computer image processing technology, especially the difficulty that the feature data of the target person cannot be measured after the video shooting space is changed can be solved.

Description

technical field [0001] The invention relates to the technical fields of computer image processing technology, video inspection and video portrait identification, in particular to a method for accurately measuring the shoe length and stride length of a target person in a video. Background technique [0002] With the rapid development of digital video technology and the continuous improvement of video monitoring and recording image pixels, the image of the target person in the video image is becoming clearer and clearer, which provides good conditions for obtaining accurate data of the target person. Professionals through scientific The method can obtain the non-intuitive digital (data) internal information of the target person, so as to provide scientific basis and data support for identifying and accurately tracking the target person. [0003] Video surveillance not only objectively records accurate time information (through proofreading, it can be accurate to the second), b...

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional methods used to describe the characteristics of the target person have the following common defects: focusing on individual subjective reasoning and judgment, mostly based on experience, and lack of objective scientific data support

Although the footprints can provide some more accurate information and data, due to the few sandy and muddy sites and the camouflage of the target person, it is difficult to extract the clear and complete footprints of the target person in most of the scenes, and the foot length and In many cases, the height is not proportional. There are many people with short feet and tall feet. This is not an isolated case.

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