Image signal capturing platform for analyzing by utilizing depth of field

Abstract

The invention relates to an image signal capturing platform for analyzing by utilizing depth of field, and the platform comprises a first capturing device which is used for detecting each athlete in a received instant splicing picture; a second capturing device connected with the first capturing device and used for identifying an imaging depth-of-field value corresponding to each athlete in the instant spliced picture; and a third capturing device connected with the second capturing device and used for judging that a certain athlete is an order athlete that falls behind when the difference between the imaging depth-of-field value of the certain sportsman object in the instant splicing picture and the imaging depth-of-field value of each other surrounding sportsman object exceeds the limit. The image signal capturing platform for analyzing by utilizing depth of field is effective in detection and reliable in distribution, and can determine a resources quota amplification value of an athlete that falls behind according to the degree of each athlete in a field track.

Description

technical field [0001] The invention relates to the field of video signal analysis, in particular to an image signal capture platform utilizing depth of field analysis. Background technique [0002] Depth of Field (DOF) refers to the front and back distance range of the subject measured by imaging that can obtain clear images at the front of the camera lens or other imagers. Aperture, lens, and the distance from the focal plane to the subject are important factors affecting depth of field. After the focus is completed, the distance of the clear image presented in the range before and after the focus, this range before and after is called the depth of field. [0003] There is a certain length of space in front of the lens (before and after the focal point). When the subject is located in this space, its image on the negative film is just between the same circle of confusion. The length of the space where the subject is located is called the depth of field. In other words, ...

AI Technical Summary

Problems solved by technology

At present, there are often a large number of athletes on the field track and the service resources are relatively limited, resulting in the equalization of service resources when implementing track management.

Generally, group runners who are not alone can take care of each other, the probability of safety accidents is small, and they need fewer service resources, while single runners lack other personnel to take care of each other, and the probability of safety accidents is higher. More service resources

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