Greyscale image partition method based on light distribution character of reflection or penetrance |
Title： |
| Greyscale image partition method based on light distribution character of reflection or penetrance |
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Application Number： |
200610011416 |
Application Date： |
2006/03/03 |
Announcement Date： |
2006/08/02 |
Pub. Date： |
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Publication Number： |
1811794 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G06K 9/34G06T 7/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Zhang Li |
Key Words： |
Greyscale image partition method, light distribution character, reflection, penetrance |
Abstract： |
Present invention belongs to digital image analysis and computer vision field. Said method is searching picture background point threshold to each line or column of image respectively in an line or column mode according to reflected or transmitted light intensity distributing convex function or concave function character and relation between light and dark of picture background point after noise filtering, uniformly setting key point coordinate, if key point position is already found background point, then co-ordinate no longer change, otherwise using periphery proximate background point coordinate as key point new co-ordinate, constructing picture background using interplation method using absolute value of constructed picture background with original image difference as target image, proceeding whole threshold partition to obtain expectant partition result. Said method is simple with higher precision. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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