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Action recognition method and device

A technology of action recognition and action, applied in the field of pattern recognition, can solve problems such as noise interference, and achieve the effect of improving accuracy

Active Publication Date: 2013-10-09
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an action recognition method and device to overcome the problem of being easily disturbed by noise when segmenting actions

Method used

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Embodiment Construction

[0029] figure 1 It is a flow chart of the action recognition method of the embodiment of the present invention. Such as figure 1 As shown, a kind of action recognition method of the present embodiment comprises:

[0030] Step S1: collect motion data, calculate fitting data based on the motion data, and the fitting data is used to characterize the magnitude of the energy change of the motion;

[0031] Step S2: read a predetermined amount of fitting data into the sliding window in chronological order, the sliding window slides forward over time to obtain updated fitting data, and determine the action start according to the median of the fitting data in the sliding window point and an action stop point, extracting all said action data between an action start point and said action stop point as valid action data; and

[0032] Step S3: Identify valid motion data.

[0033] Even if a small amount of noise points are introduced in the process of collecting data, it is difficult to...

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Abstract

The invention provides an action recognition method and device. The action recognition method comprises a first step of collecting action data, and calculating fitting data according to the action data, wherein the fitting data are used for representing energy change of an action generated at the moment when the action data are collected; a second step of reading a preset number of the fitting data into a sliding window in time sequence, wherein the sliding window slides forwards as time goes on so as to obtain newer fitting data, an action start point and an action stop point are determined according to the median of the fitting data in the sliding window, and all the action data between the action start point and the action stop point are extracted and used as valid action data; a third step of recognizing the valid action data and judging the type of the action. The action recognition method can accurately separate out the valid action data, and improves the accuracy rate of an action recognition result. The action recognition method and device is convenient to use due to the fact that action recognition is completely achieved on a smart phone.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to an action recognition method and device. Background technique [0002] At present, the way of human-computer interaction is undergoing a major change, from the traditional button-type interaction to the well-known touch screen interaction today. The main reason for this change is the inconvenience of traditional human-computer interaction devices based on mouse and keyboard. How to make the interaction between human and machine can naturally simulate the communication between human is becoming more and more important. Human action recognition technology can recognize user intentions without any traditional input devices of computer systems, providing users with a new operating experience. [0003] There are two main directions in the research of human action recognition: human action recognition based on computer vision and human action recognition based on wearable sensors. ...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 刘云浩苗欣刘克彬王思伦杨磊
Owner TSINGHUA UNIV
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