Alzenir O. Silva

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The radiotherapy treatment planning requires the delineation of the therapy structures that will be submitted to the radiation beams. When executed manually, this delineation is a slow process and can result in human errors due to the amount of X-ray computed tomography (CT) images that are analyzed in each radiotherapy planning. This process needs(More)
We propose a new system for automatic image segmentation of organs of the human pelvic area. The algorithm is based on multi-region growing followed by a watershed transform. The main contributions are the method of selecting seed pixels and predicating the multiregion growing algorithm, and the segmentation results achieved. The system was tested in 400(More)
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