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Image extraction device and method, behavior analysis system, and storage medium

A technology of extraction device and extraction method, which is applied in the field of behavior analysis system and storage medium, can solve problems such as not considering analysis, and achieve the effect of improving reliability

Active Publication Date: 2019-10-11
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In Patent Document 1, moving objects are extracted from video sequences for behavior analysis, but it does not consider which ( or which) which data from the video source to analyze

Method used

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  • Image extraction device and method, behavior analysis system, and storage medium
  • Image extraction device and method, behavior analysis system, and storage medium
  • Image extraction device and method, behavior analysis system, and storage medium

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Embodiment Construction

[0032] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033]In the following embodiments, when referring to numbers and the like (including numbers, values, amounts, ranges, etc.) of elements, except for the cases where it is particularly clearly stated and the case where it is clearly limited to a specific number in principle, it does not mean Limited to the specific number, may be above or below the specific number.

[0034] In addition, in the following embodiments, the structural elements (including process elements, etc.) are not necessarily essential except for the case where it is particularly clearly stated and the case where it is clearly understood as essential in principle, and the description may also be included. Elements not expressly mentioned in , need not be stated.

[0035] Similarly, in the following embodiments, when referring to the shape, positional relationship, etc. of structural ele...

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Abstract

The present invention provides an image extraction device for extracting a specific image for performing behavior recognition on a target person in video data from the video data of a plurality of video sources, thereby improving the accuracy of behavior recognition. The image extraction device comprises: a person detection and extraction unit (301) for detecting a person to be detected from videodata and extracting all images of the person to be detected; a key point extraction unit (306) for performing key point extraction on the image of the target person extracted by the person detectionextraction unit; a region of interest identification unit (304) that identifies a region of interest of the subject person; a region-of-interest image extraction unit (307) that extracts an image of the region of interest of the subject from the image of the subject on the basis of the region of interest specified by the region-of-interest specifying unit; and an image determination output unit (308) that determines which of the images of the region of interest extracted by the region of interest image extraction unit is a specific image and outputs the specific image.

Description

technical field [0001] The present invention relates to the field of video surveillance, in particular to an image extraction device and method for extracting a specific image from video data captured by a camera for behavior recognition, a behavior analysis system and a storage medium. Background technique [0002] Human Action Recognition has broad application prospects and potential economic and social value in many aspects. [0003] For example, in the fields of medical care, virtual reality, and auxiliary training for athletes, by installing multiple wearable sensors on a specific object, the behavior data of the object can be collected and its behavior pattern can be analyzed. Although sensor-based human behavior recognition has high accuracy and anti-interference, it can only be applied to specific objects and the cost is high, so the application is very limited. [0004] With the popularity of video surveillance equipment and the advancement of computer vision techn...

Claims

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Application Information

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IPC IPC(8): G06K9/00G16H30/20
CPCG16H30/20G06V40/20
Inventor 张杨沙浩张盼李媛
Owner HITACHI LTD
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