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Equipment and method for tracking face

A device, technology of human face, applied in the field of device and method for tracking human face, to achieve the effect of improving the effect

Active Publication Date: 2015-04-29
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to accurately estimate the occluded regions so that face tracking can be performed accurately remains an intractable problem.

Method used

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  • Equipment and method for tracking face
  • Equipment and method for tracking face
  • Equipment and method for tracking face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout.

[0041] First, according to an exemplary embodiment of the present invention, in order to perform face tracking and deal with occlusion during the tracking process, a 2D shape model, a 3D shape model and an appearance model of a face are used herein.

[0042] The two-dimensional shape model is used to express the geometric position of facial key points on the two-dimensional image, which can be expressed as:

[0043] s ( p , q ) = N ( s 0 + Σ i p i s i ; ...

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Abstract

The invention provides equipment and a method for tracking a face. The equipment comprises a face position determining unit, a segmenting unit, a blocking estimating unit and a key point acquisition unit, wherein the face position determining unit is used for determining the face position from the current fame image; the segmenting unit is used for segmenting the image of the face position into each part image of the face; the blocking estimating unit is used for estimating the blocking probability of each part image segmented based on a blocking probability model, and estimating the blocking probability of each pixel in the image of the face position based on the blocking probability of each part image; the key point acquisition unit is used for matching the two-dimensional shape model of the face with a face shape through minimizing a matching error function related to the blocking probability of each pixel, so that the positions of face key points on the current frame image are obtained, and the tracking of the face is finished.

Description

technical field [0001] The invention relates to a device and a method for tracking human faces and key points on the human faces. Background technique [0002] Tracking the position of the human face in the image or video and the key points on the human face plays a very important role in many applications that use human face images or videos as input. Here, the key points can be such as eyes, nose, etc. , eyebrows, mouth and other key points on the face. For example, in a video-based face recognition system, it is necessary to use the positions of key points of the face on each frame of image to perform geometric normalization on the face image to be matched. In the facial motion and expression capture system, it is necessary to analyze the shape and motion of facial organs according to the positions of key points of the face. In some 3D face modeling systems, it is also necessary to register and fuse face images of different poses according to the location information of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06T7/74G06T2207/20021G06T2207/10016G06T2207/30201G06V40/162G06V40/171G06T3/4007
Inventor 冯雪涛沈晓璐张辉金亭培金智渊
Owner BEIJING SAMSUNG TELECOM R&D CENT
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