A tracking method and device based on skin color detection
A skin color detection and tracking device technology, applied in the field of image processing, can solve the problems of large amount of calculation, accurate tracking of difficult-to-track objects, etc., and achieve the effect of small amount of calculation, good robustness, and easy implementation
Active Publication Date: 2019-03-19
SPREADTRUM COMM (TIANJIN) INC
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[0007] The technical solution of the present invention solves the problem that it is difficult to accurately track the tracking object and the calculation amount is relatively large during the tracking process
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[0058] In the prior art, in the process of detecting and tracking skin-colored areas, the robustness to complex scenes and illumination changes is low, and when there are multiple skin-colored areas for tracking, it cannot effectively track the multiple skin-colored areas. to track.
[0059] In order to solve the above problems, the technical solution of the present invention provides a tracking method based on skin color detection. In this method, in order to obtain an accurate skin color area, after detecting the skin color area in the input image, the conventional fitting ellipse The length of the long axis and the short axis in the fitting ellipse parameters of the skin color area obtained by the calculation method is transformed, and in the tracking process, based on the pixel points of the skin color area of the current input image and the skin color area in the previous input image The relationship between the distance and the distance threshold μ, determine the fitti...
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The invention provides a tracking method and device based on skin color detection. The method comprises the following steps: carrying out fitting processing on at least one first region to obtain fitting oval parameters of each first region, wherein the first region is a skin color region in a first input image; based on the relation of the distance between a pixel point of a second region and each first region and a distance threshold value Mu, obtaining first parameters and second parameters of the second region, wherein the second region is a skin color region in a second input image, the first parameters are the fitting oval parameters of the corresponding first regions in an oval parameter set, and the second parameters are the fitting oval parameters obtained based on fitting processing carried out on the second region; and based on the first parameters and the second parameters of the second region, tracking the second region. The method can be used for accurately tracking the tracked skin color regions; the method can be used for easily processing, has small calculation amount and is easy to realize on a mobile terminal.
Description
technical field [0001] The present invention relates to the technical field of image processing, in particular to a tracking method and device based on skin color detection. Background technique [0002] In color images, since skin color information is not affected by human body posture, facial expressions, etc., it is relatively stable, and because skin color is significantly different from the color of most background objects, skin color detection technology is very important in detection, gesture analysis, etc. It is widely used in , target tracking and image retrieval. The purpose of human skin color detection is to automatically locate the naked skin area of the human body from the image, for example, to detect the face, hands and other areas of the human body from the image. [0003] At the same time, with the rapid development of moving object tracking technology, a variety of methods for tracking moving objects have been produced. In the prior art, corresponding tr...
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IPC IPC(8): G06K9/00
Inventor 穆星张乐陈敏杰林福辉
Owner SPREADTRUM COMM (TIANJIN) INC