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Accurate and efficient segmentation of prostate is a significant but difficult task for numerous clinical applications like image-guided prostate intervention and detection of prostate cancer. In this paper, a novel landmark detection based prostate magnetic resonance imaging (MRI) segmentation method is proposed via a modified level set formulation with shape prior. Firstly, the medium slice of prostate...
We proposed a motion segmentation method a few months ago. The problem of it is that the contour of the object segmented from the image sequence is always unclosed. This paper presents a method of the Gradient Vector Flow (GVF) field snake to close the contour. The initial curve of the GVF snake is rectangle, so that the curve can be used in the tracking and recognition applications. However, corners...
This paper presents a method to quantitatively evaluate information contributions of individual bottom-up and top-down computing processes in object recognition. Our objective is to start a discovery on how to schedule bottom-up and top-down processes. (1) We identify two bottom-up processes and one top-down process in hierarchical models, termed α, β and γ channels respectively ; (2) We formulate...
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