Detecting method and detecting system for positions of face parts

A detection method and face technology, which can be applied to instruments, computer parts, image data processing, etc., and can solve problems such as huge calculation amount, reliability problems, and influence of skin color area.

Inactive Publication Date: 2013-06-12
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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
  • 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

A method and a system for simply and automatically detecting the positions of eyes, mouth, and nose in a face image with high reliability are provided. A plurality of grayscale images with gradually varying lightness are formed from a face image. Then, a process (fade-in process) is performed which detects pixel block areas that gradually appear in a face area in the grayscale images as the face area that is in a fade-out state at high lightness fades in and is brought into a fade-in state at low lightness. The detected pixel block areas include paired pixel block areas appearing as a pair. The positions of the eyes are determined based on the number of appearance of the paired pixel block areas over all the grayscale images. The positions of the mouth and nose are determined based on the positional relationship between the eyes and pixel block areas which are detected by the fade-in method and in which gradually appearing pixels no longer grow.

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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Patent Type & Authority Patents(China)
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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