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Detecting method and detecting system for positions of face parts

A detection method and face technology, applied in instruments, computer components, image data processing, etc., can solve the problems of skin color area influence, huge calculation amount, reliability problems, etc.

Inactive Publication Date: 2009-03-18
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the extraction of skin color areas is affected by the lighting environment
Therefore, in the case of an indeterminate number of facial images taken under various lighting environments as objects, reliability becomes a problem
In addition, the method of pattern detection has the problem of huge amount of calculation.

Method used

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  • Detecting method and detecting system for positions of face parts
  • Detecting method and detecting system for positions of face parts

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Embodiment Construction

[0075] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0076] Figure 1A is a flowchart representing an embodiment of the method for detecting eye positions of the present invention, Figure 1B It is a flow chart of an embodiment of the eye position detection method of the present invention in a dynamic image, Figure 1C is a flowchart representing an embodiment of a method for sequentially detecting the positions of eyes, mouth, and nose, figure 2 is a block diagram of a system implementing these methods.

[0077] The system 10 is composed of a photographing device 1 and a personal computer host 2, and a display 3, an image scanner 4, a printer 5, and the like are connected to the personal computer host 2.

[0078] The imaging device 1 is provided as an acquisition unit of the subject's facial image, and commercially available video cameras capable of capturing still images or moving images such as digital still cameras, dig...

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Abstract

The invnetion uses a convenient method to detect eye, mouth and nose positions highly reliably from a face image. A plurality of gray-scale images having their lightness sequentially varied are formed from a face image. As the gray-scale images fade in from a fade-out state of a high lightness to a low lightness, a method (or a fade-in method) for detecting the block areas of pixels to sequentially appear in the faded-out face area is performed. The positions of the eyes are specified on the basis of the number of appearances of such ones of the detected block areas of the pixels as appeared in pairs all over the gray-scale images. On the other hand, the mouth position and the nose position are specified on the basis of the positional relations of such pixel block areas to the two eyes asare detected by the fade-in method and that the sequentially appearing pixels have stopped in growth.

Description

technical field [0001] The present invention relates to a method for automatically detecting the positions of facial organs such as eyes, mouth and nose from facial images. Background technique [0002] In the case of superimposing a color image, etc. on the eyes, mouth, nose, and other facial organs of the subject's facial image and its surrounding areas to form a makeup simulation image, it is necessary to detect The positions of facial organs such as eyes, mouth, and nose. [0003] In addition, when the model image of the hairstyle is superimposed on the facial image of the subject to form a simulation image of the hairstyle, the detection of the eye position can be used for image size adjustment and positioning, and it is also used for the facial image. Eye occlusion processing, frame processing of face images, generation of images for personal authentication, etc. [0004] Conventionally, as a method of detecting eye positions from a face image, a method of detecting ...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T1/00G06V10/60
CPCG06K9/00248G06T7/0042G06T2207/30201G06T7/73G06V40/165G06V10/60
Inventor 池田浩森谷圭一
Owner KAO CORP
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