Method and device for measuring distance of target, image acquisition equipment and medium

Abstract

The invention discloses a target distance measuring method and device, image acquisition equipment and a medium, and relates to the field of image processing. The method comprises the following steps: firstly, acquiring a mapping relation established in a binocular camera for the same target in a binocular; detecting a first position of a to-be-detected target, and obtaining a second position of the to-be-detected target according to the mapping relation and the first position; and finally, obtaining the distance between the to-be-measured target and the monocular camera according to the first position and the second position. The first position is detected by the monocular camera as a first monocular camera; the second position is the same as the position of the to-be-measured target detected by the monocular camera as the second monocular camera, so that the distance measurement function of the binocular camera is realized through the distance measurement of the monocular camera, the distance measurement is not limited by the distance measurement requirement of the binocular camera, and compared with the traditional distance measurement of the monocular camera, the distance measurement accuracy of the target is improved; and the target position in the other eye is predicted through the coordinates in the single eye, so that the prediction of the shielded target is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular, to a method, an apparatus, an image acquisition device and a medium for measuring a distance of a target. Background technique [0002] With the rapid development and application of the security field, the coverage rate of surveillance cameras in various regions has increased year by year, and the perimeter and supervision-related intelligent services of smart cameras are more frequently used, which can realize the ranging of objects. Among them, human body ranging is an important function in the above services (warning areas, etc.). Human body ranging has a wide range of applications. For example, it is used in warning areas such as water boundaries. The distance between people and the water boundary is measured by installing cameras on the water boundary. When the distance between the personnel and the water boundary is found to be too close after the measu...

AI Technical Summary

Problems solved by technology

However, when using binocular ranging, the parameters of the two cameras must be completely consistent, and the positions of the two cameras must be consistent with the positions at the time of camera calibration. In the application, it is difficult to ensure that the relative positions of the two cameras do not change, which leads to The distance measurement of the target by the binocular camera is inaccurate or unable to measure the target. In addition, there is a problem of monocular occlusion in the range measurement of the binocular camera, which will lead to the inability to measure the distance of the target

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