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Light adaptation human skin colour detection method

A skin color detection and self-adaptive technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of easily introducing noise, color distortion, etc., and achieve the effect of improving detection accuracy, improving accuracy, and reducing noise interference

Inactive Publication Date: 2011-11-09
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0004] Aiming at the deficiencies of color distortion and easy introduction of noise in the existing methods mentioned in the above background technology in the process of skin color detection, the present invention proposes an illumination-adaptive human skin color detection method

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  • Light adaptation human skin colour detection method
  • Light adaptation human skin colour detection method
  • Light adaptation human skin colour detection method

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Embodiment Construction

[0049] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0050] The present invention is divided into two steps of training and testing, as attached figure 1 And attached figure 2 shown.

[0051] 1. In the training step, firstly collect data to form a database, that is, a large number of training images, including images containing human skin and images without human skin. The database will be used to train the basic skin tone model and lighting model. The basic skin color model is trained using a histogram statistical model. The training steps of the illumination model are divided into two parts: image feature extraction and image clustering. The principle of the illumination model is to cluster the skin color images with the same or similar illumination in the traini...

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Abstract

The invention discloses a light adaptation human skin colour detection method in the model identification and image processing technical field. The method disclosed in the invention comprises the following steps of: collecting a training database; using the training database to train a basal skin colour model and a light model; using the basal skin colour model to screen pixels of an image to be detected; finding out a light model closest to the image to be detected from the light model; using the model to correct the image to be detected and the basal skin colour model; and outputting the corrected image to be detected after being detected by the basal skin colour model. By means of the invention, the light component in a skin colour region in the image to be detected is obviously improved; the detection precision is improved; the accuracy of the skin colour detection is improved; and the noise interference is reduced.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition and image processing, and in particular relates to an illumination adaptive human skin color detection method. Background technique [0002] Human skin color detection technology is widely used in many fields, such as gesture recognition, face recognition and pornographic image filtering. Skin color detection is usually used as a preprocessing work in these fields, and its accuracy will have a great impact on the later processing work. This technology requires the ability to detect as many human skin pixels as possible in an image and reduce the number of non-skin color pixels. The usual processing method is to collect and organize a large number of human skin color images, and mark the skin color pixels in the picture, then build a skin color model based on these pixels, and then distinguish the pixels in the image to be detected. However, the skin color of the human body in the ima...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 苗振江耿杰
Owner BEIJING JIAOTONG UNIV
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