Segmentation based on region-competitive deformable mesh adaptation

Abstract

An image segmentation method segments a plurality of image features in an image. The plurality of image features are segmented non-simultaneously in succession. The segmenting of each image feature includes adapting an initial mesh to boundaries of the image feature. The segmenting of each image feature further includes preventing the adapted mesh from overlapping any previously adapted mesh.

Description

technical field [0001] The following involves image processing techniques. The technique is particularly applicable to segmentation and contouring of planning images in conjunction with treatment plan development for radiation therapy and will be described with specific reference to this application. However, the technique finds application in image segmentation and contouring in general and in methods and systems employing image segmentation and contouring, such as in diagnostic medical imaging, magnetic resonance angiography, etc. . Background technique [0002] During radiation therapy, a multi-leaf collimator or other beam shaping element is used to modulate the intensity of a tomographic radiation beam or beams to precisely irradiate cancerous areas while limiting sensitive nearby organs at risk radiation exposure. Prior to radiation therapy, a radiation therapy session or sessions are planned based on one or more planning images of the radiation therapy subject obta...

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Problems solved by technology

Conversely, if you set the spring body to a lower strength, it may not be enough to avoid mesh overlap

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