GPU Accelerated Edge-Region Based Level Set Evolution Constrained by 2D Gray-Scale Histogram | IEEE Journals & Magazine | IEEE Xplore

GPU Accelerated Edge-Region Based Level Set Evolution Constrained by 2D Gray-Scale Histogram


Abstract:

Due to its intrinsic nature which allows to easily handle complex shapes and topological changes, the level set method (LSM) has been widely used in image segmentation. N...Show More

Abstract:

Due to its intrinsic nature which allows to easily handle complex shapes and topological changes, the level set method (LSM) has been widely used in image segmentation. Nevertheless, LSM is computationally expensive, which limits its applications in real-time systems. For this purpose, we propose a new level set algorithm, which uses simultaneously edge, region, and 2D histogram information in order to efficiently segment objects of interest in a given scene. The computational complexity of the proposed LSM is greatly reduced by using the highly parallelizable lattice Boltzmann method (LBM) with a body force to solve the level set equation (LSE). The body force is the link with image data and is defined from the proposed LSE. The proposed LSM is then implemented using an NVIDIA graphics processing units to fully take advantage of the LBM local nature. The new algorithm is effective, robust against noise, independent to the initial contour, fast, and highly parallelizable. The edge and region information enable to detect objects with and without edges, and the 2D histogram information enable the effectiveness of the method in a noisy environment. Experimental results on synthetic and real images demonstrate subjectively and objectively the performance of the proposed method.
Published in: IEEE Transactions on Image Processing ( Volume: 22, Issue: 7, July 2013)
Page(s): 2688 - 2698
Date of Publication: 28 March 2013

ISSN Information:

PubMed ID: 23549895

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