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Sports video action recognition method based on action hotspot map

Active Publication Date: 2019-10-08
LIAONING NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

The existing recognition methods are roughly divided into two types: one is for image recognition, which has the advantage of being accurate, but the disadvantage is that it cannot process a piece of video and has poor real-time performance; the other is for video recognition, but mostly for each frame The image is compared with the standard image. The advantage is that it can process the image in real time. The disadvantage is that for repeated actions in the video, it is easy to cause the phenomenon of wrong frames, and the accuracy is poor.

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  • Sports video action recognition method based on action hotspot map
  • Sports video action recognition method based on action hotspot map
  • Sports video action recognition method based on action hotspot map

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Embodiment Construction

[0024] A kind of sports video action recognition method based on action heat map of the present invention, carries out according to following steps successively:

[0025] Step 1: Kinect camera and other equipment initialization;

[0026] Step 2: control the Kinect camera to automatically take the first 5 frames of images of the body side movement in the broadcast gymnastics as a group every 1 second, and take n groups of images altogether, and the n is a positive integer;

[0027] Step 3: For every 1 frame image of each group of 5 frame images ( figure 1 for the first frame, Figure 5 frame 5), call the get_BodyCount() function in Microsoft Kinect for windows SDK2.0 to obtain the human head, neck, left shoulder, right shoulder, left elbow, right elbow, left wrist, right wrist, left knee, right knee in the image , the point coordinates of the left ankle, right ankle and buttocks;

[0028] Step 4: The first frame image of each group (such as figure 1 shown) to the PC, the he...

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Abstract

The invention discloses a sports video action recognition method based on an action hotspot map. The sports video action recognition method comprises the following steps: obtaining first five frames of images in each second through a Kinect technology; firstly obtaining a skeleton graph of each group of first frame images, then combining a plurality of subsequent frame images in one group to obtain an action hotspot graph of the group, calculating the motion distance of the action hotspot graph, comparing and analyzing the calculation result with a standard library, identifying whether the action of a section of video is standard or not; and marking and storing non-standard action. The sports video action recognition method has the real-time performance of video image processing, and alsohas good operability and an accurate analysis result.

Description

technical field [0001] The present invention relates to a sports action recognition method, sometimes a real-time and accurate sports video action recognition method based on action heat maps. Background technique [0002] With the continuous improvement of people's quality of life, people will follow various standard fitness videos to exercise. However, due to the lack of on-site guidance from professional coaches, the body is often injured due to non-standard movements, ranging from muscle strains to fractures. Therefore, it is necessary to identify whether the sports movements are standard, so as to find non-standard movements in time and correct them. The existing recognition methods are roughly divided into two types: one is for image recognition, which has the advantage of being accurate, but the disadvantage is that it cannot process a piece of video and has poor real-time performance; the other is for video recognition, but mostly for each frame Compared with the st...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/23G06V20/42G06F18/24Y02D10/00
Inventor 高一伦傅博邢程頔王相海
Owner LIAONING NORMAL UNIVERSITY
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