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- W2138508764 abstract "Segmentation is an important step in image analysis. Thresholding is one of the most important approaches. There are several difficulties in segmentation, such as automatic selecting threshold, dealing with intensity distortion and noise removal. We have developed an adaptive segmentation scheme by applying the Central Limit Theorem in regression. A Gaussian regression is used to separate the distribution of background from foreground in a single peak histogram. The separation will help to automatically determine the threshold. A small 3 by 3 widow is applied and the modal of the local histogram is used to overcome noise. Thresholding is based on local weighting, where regression is used again for parameter estimation. A connectivity test is applied to the final results to remove impulse noise. We have applied the algorithm to x-ray angiogram images to extract brain arteries. The algorithm works well for single peak distribution where there is no valley in the histogram. The regression provides a method to apply knowledge in clustering. Extending regression for multiple-level segmentation needs further investigation." @default.
- W2138508764 created "2016-06-24" @default.
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- W2138508764 date "1996-04-16" @default.
- W2138508764 modified "2023-09-23" @default.
- W2138508764 title "<title>XRA image segmentation using regression</title>" @default.
- W2138508764 doi "https://doi.org/10.1117/12.237993" @default.
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