Target object positioning method and target object positioning device

Abstract

The invention discloses a target object positioning method and a target object positioning device in order to solve the problem that target object positioning is of low flexibility and low accuracy in the prior art. The method comprises the following steps: determining a depth image according to two original images of a target scene shot by a left camera and a right camera in a binocular camera; screening out first target pixels of which the 3D coordinates of the corresponding actual positions in a current world coordinate system are within a set range from the depth image; generating a labeled graph according to the position distribution of the first target pixels in the depth image; and finally, determining that the 3D coordinates of an actual position corresponding to the center point of a target connected domain screened out from the labeled graph in the current world coordinate system are the 3D coordinates of a target object. As the 3D coordinates of the target object can be determined according to the target connected domain in the labeled graph without storing the characteristic parameters of the target object in advance, the target object can be positioned flexibly and with high accuracy.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a target positioning method and device. Background technique [0002] In some scenes, it is sometimes necessary to take a close-up of a key object in the scene, which requires accurate positioning of the key object. For example, in classrooms, conference rooms, etc., when someone stands up, it is usually necessary to take a close-up of the person standing up, which requires accurate positioning of the person standing up. [0003] At present, the feature point recognition method is usually used to locate the target. The specific process is: pre-collect and store the feature parameters of the feature points of the specific target object, and match the feature parameters of the feature points of the object in the current scene with the stored feature parameters. If the matching is successful, it is determined that the matching object is the target object. [0004] Obviously, in the...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a target positioning method and device to solve the problem of inflexible target positioning and low positioning accuracy in the prior art

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