Patents by Inventor Srikanth Suryanarayanan
Srikanth Suryanarayanan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9070181Abstract: A technique is provided for extracting one or more features of interest from one or more projection images. The technique includes accessing projection images comprising at least one feature of interest enhanced by a contrast agent, generating a contrast agent null image based on the projection images, generating a bone mask based on the contrast agent null image, and generating a bone extracted image based on the bone mask.Type: GrantFiled: December 21, 2007Date of Patent: June 30, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Xiaoye Wu, David Allen Langan, James Vradenburg Miller, Yogisha Mallya, Srikanth Suryanarayanan
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Patent number: 8542893Abstract: A system and method includes acquisition of a set of image data comprising a plurality of image voxels and isolation of a set of pulmonary emboli candidates from the plurality of image voxels. The system and method also includes application of a non-linear contrast enhancement to the set of pulmonary emboli candidates, filtration of the enhanced set of pulmonary emboli candidates, output of a final set of pulmonary emboli candidates, and creation of an image comprising the final set of pulmonary emboli candidates.Type: GrantFiled: February 15, 2010Date of Patent: September 24, 2013Assignee: General Electric CompanyInventors: Arunabha Roy, Sandeep Dutta, Srikanth Suryanarayanan, Umesha Perdoor Srinivas Adiga
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Patent number: 8041088Abstract: A technique for automatically labeling a CT image of the brain with anatomical information. The anatomical information is obtained from an atlas of the brain prepared from an MR image of the brain. The atlas contains image data that is referenced to the Talairach coordinate system. The atlas is aligned to the CT image and the coordinate system of the CT image data is transformed to the Talairach coordinate system. The alignment of the CT image and the atlas is performed using anatomical landmarks that are visible on both the CT image and the atlas. The CT image is then labeled automatically with the anatomical information in the atlas.Type: GrantFiled: February 5, 2007Date of Patent: October 18, 2011Assignee: General Electric CompanyInventors: Yogisha Mallya, Srikanth Suryanarayanan, Krishna Seetharam Shriram, Rakesh Mullick, Mitali Janardan More
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Patent number: 8023709Abstract: A method includes performing an automatic partitioning of Neuro-vessels into a plurality of anatomically relevant circulatory systems using a CT system.Type: GrantFiled: November 24, 2006Date of Patent: September 20, 2011Assignee: General Electric CompanyInventors: Mukta Chandrashekhar Joshi, Yogisha Mallya, Srikanth Suryanarayanan, Krishna Seetharam Shriram, Ajay Gopinath
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Patent number: 8014578Abstract: A technique is provided for utilizing a model of an anatomical feature to facilitate the segmentation of the anatomical feature from its background in a medical image. A global alignment of the model with a region in the patient's image data that generally corresponds to the anatomical feature is performed in one embodiment. Internal structural features within the model are then aligned with their corresponding structural features in the patient's image data. The portion of the patient's image data that is aligned with the model of the anatomical feature is then segmented from the remaining portions of the patient's image data that are not aligned with the model.Type: GrantFiled: February 5, 2007Date of Patent: September 6, 2011Assignee: General Electric CompanyInventors: Srikanth Suryanarayanan, Rakesh Mullick, Mitali Janardan More, Krishna Seetharam Shriram
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Publication number: 20110200241Abstract: A system and method includes acquisition of a set of image data comprising a plurality of image voxels and isolation of a set of pulmonary emboli candidates from the plurality of image voxels. The system and method also includes application of a non-linear contrast enhancement to the set of pulmonary emboli candidates, filtration of the enhanced set of pulmonary emboli candidates, output of a final set of pulmonary emboli candidates, and creation of an image comprising the final set of pulmonary emboli candidates.Type: ApplicationFiled: February 15, 2010Publication date: August 18, 2011Inventors: Arunabha Roy, Sandeep Dutta, Srikanth Suryanarayanan, Umesha Perdoor Srinivas Adiga
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Patent number: 7965810Abstract: A method of identifying one or more occlusions in vasculature located in a region of interest, includes extracting vasculature from the region of interest; identifying a subject geometry of the extracted vasculature; and comparing the subject geometry to a predetermined geometry to identify a blockage. A device for identifying one or more occlusions in vasculature located in a region of interest is also presented.Type: GrantFiled: June 26, 2007Date of Patent: June 21, 2011Assignee: General Electric CompanyInventors: Arunabha S. Roy, James Vradenburg Miller, Paulo Ricardo (dos Santos) Mendonca, Rahul Bhotika, Ajay Gopinath, Robert Franklin Senzig, Wesley David Turner, Srikanth Suryanarayanan
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Patent number: 7953262Abstract: A technique for producing a three-dimensional segmented image of blood vessels and automatically labeling the blood vessels. A scanned image of the head is obtained and an algorithm is used to segment the blood vessel image data from the image data of other tissues in the image. An algorithm is used to partition the blood vessel image data into sub-volumes that are then used to designate the root ends and the endpoints of major arteries. An algorithm is used to identify a seed-point voxel in one of the blood vessels within one of the sub-volume of the partition. Other voxels are then coded based on their geodesic distance from the seed-point voxel. An algorithm is used to identify endpoints of the arteries. This algorithm may also be used in the other sub-volumes to locate the starting points and endpoints of other blood vessels. One sub-volume is further sub-divided into left and right, anterior, medial, and posterior zones.Type: GrantFiled: February 5, 2007Date of Patent: May 31, 2011Assignee: General Electric CompanyInventors: Srikanth Suryanarayanan, Yogisha Mallya, Krishna Seetharam Shriram, Ajay Gopinath, Mukta C. Joshi
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Patent number: 7907761Abstract: A method is provided for identifying a location of a region of interest in a volumetric image scan that includes a plurality of slices of an object and wherein each slice, in turn, includes a plurality of pixels. The method includes setting a predetermined pixel intensity threshold corresponding to a particular region of interest; identifying target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold; creating an energy profile from the target pixels for each slice; and comparing the energy profile to a predefined energy profile to determine the location of the region of interest.Type: GrantFiled: April 20, 2007Date of Patent: March 15, 2011Assignee: General Electric CompanyInventors: Navneeth Subramanian, Srikanth Suryanarayanan, Rakesh Mullick
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Patent number: 7719533Abstract: A technique is provided for modeling a network relationship via providing a graphical representation of the network relationship and labeling the graphical representation based on a symbol sequence. Further, one or more tools is provided by the present technique for interactively visualizing and/or analyzing the graphical representation of the network relationship based on the symbol sequence.Type: GrantFiled: November 24, 2004Date of Patent: May 18, 2010Assignee: General Electric CompanyInventors: Nithin Nagaraj, Srikanth Suryanarayanan
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Patent number: 7676257Abstract: A technique is provided for automatically generating a bone mask in CTA angiography. In accordance with the technique, an image data set may be pre-processed to accomplish a variety of function, such as removal of image data associated with the table, partitioning the volume into regionally consistent sub-volumes, computing structures edges based on gradients, and/or calculating seed points for subsequent region growing. The pre-processed data may then be automatically segmented for bone and vascular structure. The automatic vascular segmentation may be accomplished using constrained region growing in which the constraints are dynamically updated based upon local statistics of the image data. The vascular structure may be subtracted from the bone structure to generate a bone mask. The bone mask may in turn be subtracted from the image data set to generate a bone-free CTA volume for reconstruction of volume renderings.Type: GrantFiled: November 25, 2003Date of Patent: March 9, 2010Assignee: General Electric CompanyInventors: Srikanth Suryanarayanan, Rakesh Mullick, Yogisha Mallya, Vidya Pundalik Kamath, Nithin Nagaraj
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Publication number: 20090161939Abstract: A technique is provided for extracting one or more features of interest from one or more projection images. The technique includes accessing projection images comprising at least one feature of interest enhanced by a contrast agent, generating a contrast agent null image based on the projection images, generating a bone mask based on the contrast agent null image, and generating a bone extracted image based on the bone mask.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: General Electric CompanyInventors: Xiaoye Wu, David Allen Langan, James Vradenburg Miller, Yogisha Mallya, Srikanth Suryanarayanan
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Publication number: 20090012382Abstract: A method for automatic detection of obstructions in vasculature in an anatomical region is presented. The method includes partitioning the anatomical region into a plurality of sub-regions based at least in part on anatomical knowledge. Further, the method includes adaptively computing a threshold intensity value corresponding to each of the plurality of sub-regions. Additionally, the method includes extracting the vasculature in each of the plurality of sub-regions based on the corresponding computed threshold intensity value, where the extracted vasculature comprises a plurality of vessel segments. The method also includes detecting an obstruction in the extracted vasculature. Systems and computer-readable medium that afford functionality of the type defined by this method is also contemplated in conjunction with the present technique.Type: ApplicationFiled: July 2, 2007Publication date: January 8, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Sandeep Dutta, Ajay Gopinath, Srikanth Suryanarayanan, Arunabha Shasanka Roy, Paulo Ricardo Dos Santos Mendonca
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Publication number: 20090003511Abstract: A method of identifying one or more occlusions in vasculature located in a region of interest, includes extracting vasculature from the region of interest; identifying a subject geometry of the extracted vasculature; and comparing the subject geometry to a predetermined geometry to identify a blockage. A device for identifying one or more occlusions in vasculature located in a region of interest is also presented.Type: ApplicationFiled: June 26, 2007Publication date: January 1, 2009Inventors: Arunabha S. Roy, James Vradenburg Miller, Paulo Ricardo (dos Santos) Mendonca, Rahul Bhotika, Ajay Gopinath, Robert Franklin Senzig, Wesley David Turner, Srikanth Suryanarayanan
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Patent number: 7466790Abstract: A method for improving a resolution of an image is provided. The method includes reconstructing an image of an initial portion of an object at an initial resolution, and reconstructing an additional portion of the object at an additional resolution.Type: GrantFiled: March 2, 2006Date of Patent: December 16, 2008Assignee: General Electric CompanyInventors: Srikanth Suryanarayanan, Paul Edgar Licato, Yogisha Mallya, Tara Janen Mahan
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Publication number: 20080260286Abstract: A method is provided for identifying a location of a region of interest in a volumetric image scan that includes a plurality of slices of an object and wherein each slice, in turn, includes a plurality of pixels. The method includes setting a predetermined pixel intensity threshold corresponding to a particular region of interest; identifying target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold; creating an energy profile from the target pixels for each slice; and comparing the energy profile to a predefined energy profile to determine the location of the region of interest.Type: ApplicationFiled: April 20, 2007Publication date: October 23, 2008Inventors: Navneeth Subramanian, Srikanth Suryanarayanan, Rakesh Mullick
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Publication number: 20080188741Abstract: A technique for automatically labeling a CT image of the brain with anatomical information. The anatomical information is obtained from an atlas of the brain prepared from an MR image of the brain. The atlas contains image data that is referenced to the Talairach coordinate system. The atlas is aligned to the CT image and the coordinate system of the CT image data is transformed to the Talairach coordinate system. The alignment of the CT image and the atlas is performed using anatomical landmarks that are visible on both the CT image and the atlas. The CT image is then labeled automatically with the anatomical information in the atlas.Type: ApplicationFiled: February 5, 2007Publication date: August 7, 2008Inventors: Yogisha Mallya, Srikanth Suryanarayanan, Krishna Seetharam Shriram, Rakesh Mullick, Mitali Janardan More
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Publication number: 20080188734Abstract: A technique is provided for utilizing a model of an anatomical feature to facilitate the segmentation of the anatomical feature from its background in a medical image. A global alignment of the model with a region in the patient's image data that generally corresponds to the anatomical feature is performed in one embodiment. Internal structural features within the model are then aligned with their corresponding structural features in the patient's image data. The portion of the patient's image data that is aligned with the model of the anatomical feature is then segmented from the remaining portions of the patient's image data that are not aligned with the model.Type: ApplicationFiled: February 5, 2007Publication date: August 7, 2008Inventors: Srikanth Suryanarayanan, Rakesh Mullick, Mitali Janardan More, Krishna Seetharam Shriram
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Publication number: 20080188962Abstract: A technique for producing a three-dimensional segmented image of blood vessels and automatically labeling the blood vessels. A scanned image of the head is obtained and an algorithm is used to segment the blood vessel image data from the image data of other tissues in the image. An algorithm is used to partition the blood vessel image data into sub-volumes that are then used to designate the root ends and the endpoints of major arteries. An algorithm is used to identify a seed-point voxel in one of the blood vessels within one of the sub-volume of the partition. Other voxels are then coded based on their geodesic distance from the seed-point voxel. An algorithm is used to identify endpoints of the arteries. This algorithm may also be used in the other sub-volumes to locate the starting points and endpoints of other blood vessels. One sub-volume is further sub-divided into left and right, anterior, medial, and posterior zones.Type: ApplicationFiled: February 5, 2007Publication date: August 7, 2008Inventors: Srikanth Suryanarayanan, Yogisha Mallya, Krishna Seetharam Shriram, Ajay Gopinath, Mukta C. Joshi
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Publication number: 20080123800Abstract: A method includes performing an automatic partitioning of Neuro-vessels into a plurality of anatomically relevant circulatory systems using a CT system.Type: ApplicationFiled: November 24, 2006Publication date: May 29, 2008Inventors: Mukta Chandrashekhar Joshi, Yogisha Mallya, Srikanth Suryanarayanan, Krishna Seetharam Shriram, Ajay Gopinath