Equipment and method for detecting head posture

A technology for head posture and detection equipment, which is applied in computer parts, image data processing, 3D modeling, etc., and can solve problems such as obtaining posture information, failing to detect head posture information, and poor accuracy of head posture detection technology , to achieve the effect of accurate head posture

Inactive Publication Date: 2011-08-17
SAMSUNG ELECTRONICS CO LTD +1
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Problems solved by technology

Because this method uses the epipolar geometry method, it needs to obtain the frontal image in advance and there are constraints on the positional relationship between the face and the camera, so it is difficult to obtain accurate pose information on any face and any

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  • Equipment and method for detecting head posture
  • Equipment and method for detecting head posture
  • Equipment and method for detecting head posture

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Experimental program
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Embodiment Construction

[0040] Various example embodiments will now be described more fully with reference to the accompanying drawings.

[0041] figure 1 A block diagram of a head posture detection device 10 according to an exemplary embodiment of the present invention is shown. Such as figure 1 As shown, the head posture detection device 10 according to the present invention includes: a multi-view image acquisition unit 11 , a front face image estimation unit 12 and a head posture estimation unit 13 .

[0042] The multi-view image acquisition unit 11 acquires images of a subject (ie, a user) simultaneously captured from different angles (hereinafter referred to as perspective images), and sends the captured perspective images to the front face image estimation unit 12 . For example, the multi-view image acquisition unit 11 may acquire view images from a plurality of image capturing devices (for example, cameras) arranged in the detection environment with appropriate positions and postures.

[00...

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Abstract

The invention provides equipment and a method for detecting a head posture. The equipment for detecting the head posture comprises a multi-visual-angle image acquiring unit, a front human face image estimation unit, a head posture estimation unit and a coordinate conversion unit, wherein the multi-visual-angle image acquiring unit is used for acquiring visual angle images, which is shot from different angles, of an object; the front human face image estimation unit detects a visual angle image of a human face having a minimum yaw angle from the acquired visual angle images; the head posture estimation unit acquires a three-dimensional coordinate of a predetermined human face characteristic point from a human face three-dimensional model, detects the predetermined human face characteristic point and a two-dimensional coordinate of the predetermined human face characteristic point from the detected visual angle image, and calculates a first head posture relative to image capturing equipment for shooting the visual angle image of the human face having the minimum yaw angle according to the two-dimensional coordinate and the three-dimensional coordinate of the predetermined human face characteristic point; and the coordinate conversion unit converts the first head posture into a second head posture represented by a world coordinate system according to the world coordinate system coordinates of the image capturing equipment.

Description

technical field [0001] The present invention relates to head posture detection, and more specifically, relates to a head posture detection device and method using a three-dimensional model. Background technique [0002] Head posture and motion detection is a technology commonly used in the field of human-computer interaction, and various controls can be realized by detecting head posture. For example, by detecting people's head posture to detect people's line of sight, thereby performing various control applications according to the line of sight or directly according to people's head posture (for example, controlling the cursor on the screen by detecting people's line of sight or head posture) Move); remind the driver to pay attention to driving safety by detecting the driver's head posture; automatically adjust the screen angle of the display device by detecting the audience's head posture, etc. [0003] Currently, there are mainly two techniques for detecting head poses....

Claims

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Application Information

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IPC IPC(8): G06F3/01G06T17/00
Inventor 任海兵王西颖金智渊
Owner SAMSUNG ELECTRONICS CO LTD
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