Interactive and automated tissue image analysis with global training database and variable-abstraction processing in cytological specimen classification and laser capture microdissection applications
First Claim
Patent Images
1. A method for image analysis, the method comprising:
- receiving a first image at a processor;
transforming the first image into a feature space;
selecting a region of interest (ROI) at a pixel level of processing from the first image, wherein the ROI is a portion of the first image;
extracting two or more features from the ROI at a pixel level of processing;
selecting a non-ROI at a pixel level of processing from the first image, wherein the non-ROI is a portion of the first image and independent of the selected ROI;
extracting two or more features from the non-ROI at a pixel level of processing;
ranking, in a combinatorial manner, the extracted features from the ROI and the non-ROI based on feature performance for successful detection of a selected ROI at a pixel level of processing;
recording the ranked extracted features;
selecting a classification algorithm;
running the classification algorithm to classify the first image or a second image into one or more ROIs at a pixel level of processing based in part on comparing the selected ROI and non-ROI, wherein the first or second image selected for classification is a classified image;
determining a size of one or more of the ROIs based on pixel level processing; and
outputting analysis results to a computing device.
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Abstract
A system and method for performing tissue image analysis and region of interest identification for further processing applications such as laser capture microdissection is provided. The invention provides three-stage processing with flexible state transition that allows image recognition to be performed at an appropriate level of abstraction. The three stages include processing at one or more than one of the pixel, subimage and object levels of processing. Also, the invention provides both an interactive mode and a high-throughput batch mode which employs training files generated automatically.
74 Citations
25 Claims
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1. A method for image analysis, the method comprising:
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receiving a first image at a processor; transforming the first image into a feature space; selecting a region of interest (ROI) at a pixel level of processing from the first image, wherein the ROI is a portion of the first image; extracting two or more features from the ROI at a pixel level of processing; selecting a non-ROI at a pixel level of processing from the first image, wherein the non-ROI is a portion of the first image and independent of the selected ROI; extracting two or more features from the non-ROI at a pixel level of processing; ranking, in a combinatorial manner, the extracted features from the ROI and the non-ROI based on feature performance for successful detection of a selected ROI at a pixel level of processing; recording the ranked extracted features; selecting a classification algorithm; running the classification algorithm to classify the first image or a second image into one or more ROIs at a pixel level of processing based in part on comparing the selected ROI and non-ROI, wherein the first or second image selected for classification is a classified image; determining a size of one or more of the ROIs based on pixel level processing; and outputting analysis results to a computing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification