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- W4387364637 abstract "This paper proposes an edge based compressively sensed (CS) geodesic active contour (GAC) model, termed CS-GAC, to ensure faithful edge detection and accurate object segmentation. The motivation behind this paper is that edge information driving the contour evolution can be iteratively obtained by incomplete CS measurements. In each iteration, the CS-GAC is a three-step process including edge detection, active contouring and sparse reconstruction. Instead of working on the final reconstructed images themselves, the evolution of the CS-GAC is driven by a few CS measurements and guided by updatable edge information. The edge information is generated by a complex shearlet transform (CST) based edge map. In the framework, reconstruction and edge detection work alternately. The iterative update property that takes advantages of both edge sparsity and edge detection can largely improve the evolution precision. Numerical experiments show that the CS-GAC can obtain challenging segmentation results in comparisons with the state of the art methods, and has competitive prospects." @default.
- W4387364637 created "2023-10-06" @default.
- W4387364637 creator A5014040882 @default.
- W4387364637 date "2024-02-01" @default.
- W4387364637 modified "2023-10-18" @default.
- W4387364637 title "CS-GAC: Compressively sensed geodesic active contours" @default.
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- W4387364637 doi "https://doi.org/10.1016/j.patcog.2023.110007" @default.
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