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State-of-posture estimation device and state-of-posture estimation method

A state estimation and posture technology, applied in computing, computer components, image data processing, etc., can solve problems such as different posture states

Active Publication Date: 2013-03-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the prior art has the problem that it cannot be estimated with high accuracy due to the different pose states

Method used

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Embodiment Construction

[0060] An embodiment of the present invention will be described in detail below with reference to the drawings.

[0061] In the following description, a "part" refers to a collection of parts divided by joints in the human body.

[0062] That is, the sites are, for example, the head, shoulders, right upper arm, right forearm, left upper arm, left forearm, above the right knee, below the right knee, above the left knee, and below the left knee. In addition, the "part area" refers to an area that a certain part can occupy in an image, that is, a movable range of a part.

[0063]In addition, the "part axis" refers to the imaginary center axis of the longitudinal direction of a part. Specifically, a part axis refers to a line segment connecting a first joint connecting a part to another first part on the reference part side and a second joint or a part end connecting a part to another second part. For example, a part axis may be defined by a set of first joint coordinate informa...

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PUM

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Abstract

This state-of-posture estimation device is capable of estimating with high accuracy the state-of-posture of an object having a joint. The state-of-posture estimation device (100) is a device for estimating the state-of-posture of an object on the basis of image data in which an object having a plurality of sections connected by joints has been captured, and has a section candidate extraction unit (140) for extracting a section candidate for a section from the image data, a complementary section candidate extraction unit (160) which estimates that a portion of an unextracted section for which a section candidate has not been extracted by the section candidate extraction unit (140) is being shadowed by an already extracted section for which a section candidate has been extracted by the section candidate extraction unit (140); in order to extract a section candidate of the unextracted section from the image data, and a state-of-posture estimation unit (170) for estimating the state of posture of the object on the basis of the extracted section candidate.

Description

technical field [0001] The present invention relates to a posture state estimation device and a posture state estimation method for estimating the posture state of an object based on image data obtained by photographing an object having a plurality of parts connected by joints. Background technique [0002] In recent years, research on human pose estimation based on image data of captured moving images has been actively conducted. This is because if it is possible to determine human behavior from moving images by computer analysis, it is possible to perform behavior analysis in various fields without relying on manpower. Examples of behavior analysis include abnormal behavior detection on the street, purchase behavior analysis in stores, work efficiency assistance in factories, and posture guidance during exercise. [0003] Therefore, for example, Patent Document 1 describes a technique for estimating a person's posture state based on image data captured by a monocular came...

Claims

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Application Information

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IPC IPC(8): G06T7/60
CPCG06T2207/10016G06T7/60G06T2207/20076G06T7/0044G06T7/0042G06T1/00G06T2207/30196G06T2207/10024G06T7/0046G06T7/73G06T7/75G06F18/22
Inventor 川口京子田靡雅基丸谷健介里雄二藤田光子
Owner PANASONIC CORP