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A shed image division processing method

A processing method and watershed technology, applied in image data processing, image communication, image enhancement, etc., can solve problems such as excessive computing overhead

Inactive Publication Date: 2008-01-16
廉仁淳
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Problems solved by technology

[0010] For some methods with high real-time requirements (real-time video segmentation), the computational overhead is still too large

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Embodiment Construction

[0039] This image segmentation method can be used for the higher image segmentation occasion of real-time requirement, such as in the video object VOB extraction process of MPEG-4, below in conjunction with accompanying drawing and embodiment the present invention is described further:

[0040] Watershed method image segmentation pre-processing:

[0041] Because the original image may bring some noise points that have nothing to do with the original image during the data acquisition and storage process. These noise points will greatly affect the processing effect of the watershed method, resulting in over-segmentation. Therefore, the original grayscale image must be passed through a low-pass filter to filter out unnecessary noise points.

[0042] In order to better divide the image into regions through the watershed method, it is necessary to emphasize the region edges of the image, which can be achieved by differential operator edge detection.

[0043] In the image smoothin...

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Abstract

The invention discloses a watershed image segmentation processing method, which is mainly divided into three steps, namely the preliminary treatment process of the watershed algorithm to filter unnecessary noise points; the watershed treating process to sort the pixel points and conduct label extension; the watershed post treatment process to reduce the influence of transition segmentation. The speed of the method is twice faster than that of VINCENT-SOILLE method, the segmentation effect is equivalent, and at the same time, the method keeps a majority of beneficial information for image segmentation; therefore the invention would see a great application value in locations which have a stringent restriction on segmentation time, particularly in abstraction of real-time video objects.

Description

technical field [0001] The invention relates to an image segmentation processing method, in particular to a morphological watershed image segmentation processing method. Background technique [0002] The image segmentation watershed method was first introduced into the field of image processing by Digabel and Lantujoul to analyze simple binary images. Meyer proposed the most original morphological watershed segmentation method in 1990 (Meyer F, Beucher S. Morphological Segmentation[J]. Journal of Visual Communication and Image Representation, 1990, 1(1): 21-46.), but this method has extremely high computational complexity and is very difficult to implement. Vincent and Soille proposed a fast morphological watershed method in 1991 (Luc Vincent, Pierre Soille, Watersheds in Digital Spaces: An Efficient Algorithm Based on Immersion Simulations, IEEE Transactions on pattern analysis and machine intelligence, JUNE 1991, VOL.13, NO.6, PAGE 583-598), to establish the theory of wate...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26G06T5/00
Inventor 曹喜信曹健刘宏志于敦山张兴彭春干
Owner 廉仁淳