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Image processing method for removing backgrounds

An image processing and foreground image technology, applied in the field of image processing that can remove background and foreground shadows, can solve the problems of the shadows of foreground objects and the edges of foreground images failing to provide good video images and poor visual quality

Inactive Publication Date: 2010-12-29
PRIMAX ELECTRONICS LTD
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Problems solved by technology

[0003] In order to solve the problem in the prior art that only images with poor visual quality can be provided, especially the shadows of foreground objects and the resolution of foreground image edges cannot provide good video images, according to an implementation of the present invention example, which provides an image processing method

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  • Image processing method for removing backgrounds
  • Image processing method for removing backgrounds

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Embodiment Construction

[0045] The present invention discloses a mechanism that can successfully extract the foreground from an input image. First, please refer to figure 1 , figure 1 It is a schematic diagram of the foreground generating module 100 applying the method for extracting the foreground from the input image of the present invention. The foreground generation module 100 includes a foreground extraction unit 101, a reference background generation unit 102, a brightness generation unit 104, a foreground expansion unit 103, a foreground detection unit 105, an expansion erosion unit 107 and a comparison table 110, wherein the foreground generation The module 100 and each internal component can be implemented in the form of physical circuit (hardware) or program code (software), that is, any image processing framework that adopts the algorithm of extracting the foreground from the input image of the present invention belongs to the scope of the present invention. The reference background gene...

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Abstract

The invention provides an image processing method for removing backgrounds, comprising the following steps of: receiving an input image; comparing a reference background with the input image by referring to a first threshold value to decide a first foreground image positioned in the input image; deciding a second foreground image positioned in the input image according to the first foreground image, wherein the second foreground image is different from the first foreground image; and comparing the reference background with the second foreground image by referring to a second threshold value different from the first threshold value to decide a third foreground image in the input image. Besides, when the foreground images are generated, a shadow effect is removed in a shadow removing mode, thereby the images achieve a better output result. The image processing method for removing backgrounds can remove background images and foreground shadows and successfully carry out edge processing on the obtained foregrounds to obtain a better foreground image.

Description

technical field [0001] The invention relates to an image processing technology for removing background, in particular to an image processing method capable of removing background and foreground shadows. At the same time, this technology also includes a shadow removal method, which can obtain a better image with background removal. Background technique [0002] Among the image processing techniques used to remove the background, background removal is often used in image processing of monitors or in video conferences with high security. However, the common background removal techniques today can only provide images with poor visual quality , especially in terms of the resolution of the shadow of the foreground object and the resolution of the edge of the foreground image, how to overcome the above-mentioned problems is still a major issue in this field. Contents of the invention [0003] In order to solve the problem in the prior art that only images with poor visual qualit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/00
Inventor 郑丁元
Owner PRIMAX ELECTRONICS LTD
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