Body posture determination method and device

Abstract

The embodiments of the invention provide a body posture determination method and device, and the method and the device are used to accurately and effectively determine a body posture. The body posturedetermination method comprises the following steps of determining a plurality of human body nodes of a first human body in a human body image, wherein the plurality of human body nodes at least include wrist nodes, elbow nodes, shoulder nodes, and the multiple nodes of a head and a neck; and determining the posture of the first human body according to the relative position relationships between the wrist nodes and the elbow nodes, the shoulder nodes and a head region, wherein the head region is a region which is used for representing a first human head and is determined according to the plurality of nodes of the head and the neck.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for judging body posture. Background technique [0002] At present, there are mainly two methods for body posture judgment, one is the optical flow analysis method, and the other is the depth image analysis method. Among them, the optical flow analysis method determines the movement information of the target by capturing the change of the optical flow in the picture, and then judges the body posture according to the movement of the target; the depth image analysis method uses the distance from each point in the scene to the image collector as the depth image The pixel value of each point in the image, and then judge the body posture according to the depth image. [0003] However, when the optical flow analysis method is used to judge the body posture, the optical flow vectors generated by the two actions of raising the hand and standing up are relatively simil...

AI Technical Summary

Problems solved by technology

[0003] However, when the optical flow analysis method is used to judge the posture of the body, the optical flow vectors generated by the two actions of raising the hand and standing up are relatively similar, so it is impossible to accurately distinguish whether the human body is raising the hand or standing up based on the optical flow analysis method.

When implementing the depth image analysis method to judge the posture of the limbs, the limbs (such as arms) are usually thinner, and the limb information in the depth image is not obvious; and, when the arm is close to the head, the depth difference between the arm and the head is not obvious, and cannot Judging the depth difference information, resulting in the failure of limb posture judgment

[0004] It can be seen that there is a lack of a technology that can accurately and effectively judge the posture of the limbs in the prior art.

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