Hierarchical deformable model for image segmentation
First Claim
Patent Images
1. A method for facilitating deformable model-based segmentation of image data, comprising:
- receiving, by a computer system, training image data;
automatically constructing, by the computer system, based on the training image data, a hierarchical structure comprising multiple nodes, wherein a node represents a cluster of vertices having relatively similar characteristics; and
learning, by the computer system, at least one spatially adaptive boundary detector based on a node of the hierarchical structurewherein the step of automatically constructing the hierarchical structure comprises performing a process including if a divergence between positive and negative samples in a node of the hierarchical structure is less than a pre-determined threshold, splitting the node by performing clustering based on selected features.
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Abstract
Described herein is a technology for facilitating deformable model-based segmentation of image data. In one implementation, the technology includes receiving training image data (202) and automatically constructing a hierarchical structure (204) based on the training image data. At least one spatially adaptive boundary detector is learned based on a node of the hierarchical structure (206).
13 Citations
23 Claims
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1. A method for facilitating deformable model-based segmentation of image data, comprising:
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receiving, by a computer system, training image data; automatically constructing, by the computer system, based on the training image data, a hierarchical structure comprising multiple nodes, wherein a node represents a cluster of vertices having relatively similar characteristics; and learning, by the computer system, at least one spatially adaptive boundary detector based on a node of the hierarchical structure wherein the step of automatically constructing the hierarchical structure comprises performing a process including if a divergence between positive and negative samples in a node of the hierarchical structure is less than a pre-determined threshold, splitting the node by performing clustering based on selected features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of image segmentation, comprising:
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receiving, by a computer system, an input image; initializing, by the computer system, a deformable model; and performing, by the computer system, deformation on vertices of the input image using a hierarchical structure with spatially adaptive boundary detectors to guide the deformable model to a boundary, wherein said hierarchical structure is automatically constructed, by the computer system, based on training image data, wherein a node of the hierarchical structure represents vertices that are driven in response to a same boundary detector; wherein the step of automatically constructing the hierarchical structure comprises performing a process including if a divergence between positive and negative samples in a node of the hierarchical structure is less than a pre-determined threshold, splitting the node by performing clustering based on selected features.
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22. A non-transitory computer usable medium having a computer readable program code tangibly embodied therein, said computer readable program code adapted to be executed by a processor to implement a method for facilitating deformable model-based segmentation of image data, comprising:
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receiving training image data; automatically constructing, based on the training image data, a hierarchical structure comprising multiple nodes, wherein a node represents a cluster of vertices having relatively similar characteristics; and learning at least one spatially adaptive boundary detector based on a node of the hierarchical structure; wherein the step of automatically constructing the hierarchical structure comprises performing a process including if a divergence between positive and negative samples in a node of the hierarchical structure is less than a pre-determined threshold, splitting the node by performing clustering based on selected features.
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23. A system for facilitating deformable model-based segmentation of image data, comprising:
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a memory device for storing computer readable program code; and a processor in communication with the memory device, the processor being operative with the computer readable program code to; receive training image data; automatically construct, based on the training image data, a hierarchical structure comprising multiple nodes, wherein a node represents a cluster of vertices having relatively similar characteristics, wherein automatically constructing the hierarchical structure further comprises performing a process including if a divergence between positive and negative samples in a node of the hierarchical structure is less than a pre-determined threshold, splitting the node by performing clustering based on selected features; and learn at least one spatially adaptive boundary detector based on a node of the hierarchical structure.
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Specification