Patents by Inventor Fengshou Yin
Fengshou Yin 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: 10325176Abstract: A method of assessing the quality of an retinal image (such as a fundus image) includes selecting at least one region of interest within a retinal image corresponding to a particular structure of the eye (e.g. the optic disc or the macula), and a quality score is calculated in respect of the, or each, region-of-interest. Each region of interest is typically one associated with pathology, as the optic disc and the macula are. Optionally, a quality score may be calculated also in respect of the eye as a whole (i.e. over the entire image, if the entire image corresponds to the retina).Type: GrantFiled: August 25, 2015Date of Patent: June 18, 2019Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Fengshou Yin, Wing Kee Damon Wong, Jiang Liu, Beng Hai Lee, Zhuo Zhang, Kavitha Gopalakrishnan, Ying Quan, Ai Ping Yow
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Publication number: 20180181833Abstract: A method of assessing the quality of an retinal image (such as a fundus image) includes selecting at least one region of interest within a retinal image corresponding to a particular structure of the eye (e.g. the optic disc or the macula), and a quality score is calculated in respect of the, or each, region-of-interest. Each region of interest is typically one associated with pathology, as the optic disc and the macula are. Optionally, a quality score may be calculated also in respect of the eye as a whole (i.e. over the entire image, if the entire image corresponds to the retina).Type: ApplicationFiled: August 25, 2015Publication date: June 28, 2018Inventors: Fengshou YIN, Wing Kee Damon WONG, Jiang LIU, Beng Hai LEE, Zhuo ZHANG, Kavitha GOPALAKRISHNAN, Ying QUAN, Al Ping YOW
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Patent number: 9786202Abstract: A surgical training system and method. The system comprises means for recording reference data representing a reference manipulation of a computer generated model of an object by a master user; means for physically guiding a trainee user based on the recorded reference data during a training manipulation of the model of the object by the trainee user; and means for recording assessment data representing an assessment manipulation of the model of the object by the trainee user without guidance.Type: GrantFiled: March 4, 2011Date of Patent: October 10, 2017Assignees: Agency for Science, Technology and Research, National University Hospital (S) Pte Ltd., National University of SingaporeInventors: Weimin Huang, Jiang Liu, Jiayin Zhou, Jing Zhang, Beng Hai Lee, Wing Kee Wong, Ngan Meng Tan, Zhuo Zhang, Fengshou Yin, Stephen Chang, Chee Kong Chui, Yi Su
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Patent number: 9684959Abstract: A method is proposed for automatically locating the optic disc or the optic cup in an image of the rear of an eye. A portion of the image containing the optic disc or optic cup is divided into sub-regions using a clustering algorithm. Biologically inspired features, and optionally other features, are obtained for each of the sub-regions. An adaptive model uses the features to generate data indicative of whether each sub-region is within or outside the optic disc or optic cup. The result is then smoothed, to form an estimate of the position of the optic disc or optic cup.Type: GrantFiled: August 26, 2013Date of Patent: June 20, 2017Assignees: Agency for Science, Technology and Research, Singapore Health Services Pte LtdInventors: Jun Cheng, Jiang Liu, Yanwu Xu, Fengshou Yin, Ngan Meng Tan, Wing Kee Damon Wong, Beng Hai Lee, Xiangang Cheng, Xinting Gao, Zhuo Zhang, Tien Yin Wong, Ching-Yu Cheng, Yim-lui Carol Cheung, Baskaran Mani, Tin Aung
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Patent number: 9679379Abstract: A method is presented to obtain, from a retinal image, data characterizing the optic cup, such as data indicating the location and/or size of the optic cup in relation to the optic disc. A disc region of the retinal image of an eye, is expressed as a weighted sum of a plurality of pre-existing “reference” retinal images in a library, with the weights being chosen to minimize a cost function. The data characterizing the cup of the eye is obtained from cup data associated with the pre-existing disc images and the corresponding weights. The cost function includes (i) a construction error term indicating a difference between the disc region of the retinal image and a weighted sum of the reference retinal images, and (ii) a cost term, which may be generated using a weighted sum over the reference retinal images of a difference between the reference retinal images and the disc region of the retinal image.Type: GrantFiled: January 22, 2014Date of Patent: June 13, 2017Assignee: Agency for Science, Technology and ResearchInventors: Yanwu Xu, Jiang Liu, Jun Cheng, Fengshou Yin, Wing Kee Damon Wong
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Patent number: 9445716Abstract: A non-stereo fundus image is used to obtain a plurality of glaucoma indicators. Additionally, genome data for the subject is used to obtain genetic marker data relating to one or more genes and/or SNPs associated with glaucoma. The glaucoma indicators and genetic marker data are input into an adaptive model operative to generate an output indicative of a risk of glaucoma in the subject. In combination, the genetic indicators and genome data are more informative about the risk of glaucoma than either of the two in isolation. The adaptive model may be a two-stage model, having a first stage in which individual genetic indicators are combined with respective portions of the genome data by first adaptive model modules to form respective first outputs, and a second stage in which the first outputs are combined by a second adaptive mode.Type: GrantFiled: August 17, 2015Date of Patent: September 20, 2016Assignees: Agency for Science, Technology and Research, Singapore Health Services Pte LtdInventors: Jiang Liu, Zhuo Zhang, Wing Kee Damon Wong, Ngan Meng Tan, Fengshou Yin, Beng Hai Lee, Huiqi Li, Joo Hwee Lim, Carol Cheung, Tin Aung, Tien Yin Wong, Ziyang Liang, Jun Cheng, Baskaran Mani
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Publication number: 20160100753Abstract: A non-stereo fundus image is used to obtain a plurality of glaucoma indicators. Additionally, genome data for the subject is used to obtain genetic marker data relating to one or more genes and/or SNPs associated with glaucoma. The glaucoma indicators and genetic marker data are input into an adaptive model operative to generate an output indicative of a risk of glaucoma in the subject. In combination, the genetic indicators and genome data are more informative about the risk of glaucoma than either of the two in isolation. The adaptive model may be a two-stage model, having a first stage in which individual genetic indicators are combined with respective portions of the genome data by first adaptive model modules to form respective first outputs, and a second stage in which the first outputs are combined by a second adaptive mode.Type: ApplicationFiled: August 17, 2015Publication date: April 14, 2016Inventors: Jiang LIU, Zhuo ZHANG, Wing Kee Damon WONG, Ngan Meng TAN, Fengshou YIN, Beng Hai LEE, Huiqi LI, Joo Hwee LIM, Carol CHEUNG, Tin AUNG, Tien Yin WONG, Ziyang LIANG, Jun CHENG, Baskaran MANI
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Publication number: 20150363930Abstract: A method is presented to obtain, from a retinal image, data characterizing the optic cup, such as data indicating the location and/or size of the optic cup in relation to the optic disc. A disc region of the retinal image of an eye, is expressed as a weighted sum of a plurality of pre-existing “reference” retinal images in a library, with the weights being chosen to minimize a cost function. The data characterizing the cup of the eye is obtained from cup data associated with the pre-existing disc images and the corresponding weights. The cost function includes (i) a construction error term indicating a difference between the disc region of the retinal image and a weighted sum of the reference retinal images, and (ii) a cost term, which may be generated using a weighted sum over the reference retinal images of a difference between the reference retinal images and the disc region of the retinal image.Type: ApplicationFiled: January 22, 2014Publication date: December 17, 2015Inventors: Yanwu XU, Jiang LIU, Jun CHENG, Fengshou YIN, Wing Kee Damon WONG
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Patent number: 9107617Abstract: A non-stereo fundus image is used to obtain a plurality of glaucoma indicators. Additionally, genome data for the subject is used to obtain genetic marker data relating to one or more genes and/or SNPs associated with glaucoma. The glaucoma indicators and genetic marker data are input into an adaptive model operative to generate an output indicative of a risk of glaucoma in the subject. In combination, the genetic indicators and genome data are more informative about the risk of glaucoma than either of the two in isolation. The adaptive model may be a two-stage model, having a first stage in which individual genetic indicators are combined with respective portions of the genome data by first adaptive model modules to form respective first outputs, and a second stage in which the first outputs are combined by a second adaptive mode.Type: GrantFiled: November 16, 2010Date of Patent: August 18, 2015Assignees: Agency for Science, Technology and Research, Singapore Health Services Pte Ltd.Inventors: Jiang Liu, Zhuo Zhang, Wing Kee Damon Wong, Ngan Meng Tan, Fengshou Yin, Beng Hai Lee, Huiqi Li, Joo Hwee Lim, Carol Cheung, Tin Aung, Tien Yin Wong, Ziyang Liang, Jun Cheng, Baskaran Mani
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Publication number: 20150187070Abstract: A method is proposed for automatically locating the optic disc or the optic cup in an image of the rear of an eye. A portion of the image containing the optic disc or optic cup is divided into sub-regions using a clustering algorithm. Biologically inspired features, and optionally other features, are obtained for each of the sub-regions. An adaptive model uses the features to generate data indicative of whether each sub-region is within or outside the optic disc or optic cup. The result is then smoothed, to form an estimate of the position of the optic disc or optic cup.Type: ApplicationFiled: August 26, 2013Publication date: July 2, 2015Inventors: Jun Cheng, Jiang Liu, Yanwu Xu, Fengshou Yin, Ngan Meng Tan, Wing Kee Damon Wong, Beng Hai Lee, Xiangang Cheng, Xinting Gao, Zhuo Zhang, Tien Yin Wong, Ching-Yu Cheng, Yim-lui Carol Cheung, Baskaran Mani, Tin Aung
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Publication number: 20150125052Abstract: A method is proposed for automatically analysing a retina image, to identify the presence of drusen which is indicative of age-related macular degeneration. The method proposes dividing a region of interest including the macula centre into patches, obtaining a local descriptor of each of the patches, reducing the dimensionality of the local descriptor by comparing the local descriptor to a tree-like clustering model and obtaining transformed data indicating the identity of the cluster. The transformed data is fed into an adaptive model which generates data indicative of the presence of drusen in the retinal image. Furthermore, the trans formed data can be used to obtain the location of the drusen within the image.Type: ApplicationFiled: June 5, 2013Publication date: May 7, 2015Inventors: Wing Kee Damon Wong, Xiangang Cheng, Jiang Liu, Ngan Meng Tan, Beng Hai Lee, Fengshou Yin, Mayuri Bhargava, Gemmy Cheung, Tien Yin Wong
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Patent number: 8764448Abstract: A robotic device for use in image-guided robot assisted surgical training, the robotic device comprising a manual interface structure configured to simulate handling of a surgical tool; a translational mechanism for translational motion of the manual interface structure; a rotational mechanism for rotational motion of the manual interface structure; and a spherical mechanism configured to decouple the orientation of the manual interface structure into spatial coordinates, wherein a linkage between the rotational mechanism, the rotational mechanism and the spherical mechanism, and the manual interface structure are disposed on opposing sides of an intersection of a pitch axis and a yaw axis of the spherical mechanism.Type: GrantFiled: September 1, 2011Date of Patent: July 1, 2014Assignees: Agency for Science, Technology and Research, National University Hospital (s) PTE Ltd, National University of SingaporeInventors: Tao Yang, Liangjing Yang, Jiang Liu, Chee Kong Chui, Weimin Huang, Jing Zhang, Jiayin Zhou, Beng Hai Lee, Ngan Meng Tan, Wing Kee Damon Wong, Fengshou Yin, Kin Yong Chang, Yi Su
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Publication number: 20130224710Abstract: A robotic device for use in image-guided robot assisted surgical training, the robotic device comprising a manual interface structure configured to simulate handling of a surgical tool; a translational mechanism for translational motion of the manual interface structure; a rotational mechanism for rotational motion of the manual interface structure; and a spherical mechanism configured to decouple the orientation of the manual interface structure into spatial coordinates, wherein a linkage between the rotational mechanism, the rotational mechanism and the spherical mechanism, and the manual interface structure are disposed on opposing sides of an intersection of a pitch axis and a yaw axis of the spherical mechanism.Type: ApplicationFiled: September 1, 2011Publication date: August 29, 2013Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, NATIONAL UNIVERSITY OF SINGAPORE, NATIONAL UNIVERSITY HOSPITAL (S) PTE LTDInventors: Tao Yang, Liangjing Yang, Jiang Liu, Chee Kong Chui, Weimin Huang, Jing Zhang, Jiayin Zhou, Beng Hai Lee, Ngan Meng Tan, Wing Kee Damon Wong, Fengshou Yin, Kin Yong Chang, Yi Su
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Publication number: 20130196300Abstract: A surgical training system and method. The system comprises means for recording reference data representing a reference manipulation of a computer generated model of an object by a master user; means for physically guiding a trainee user based on the recorded reference data during a training manipulation of the model of the object by the trainee user; and means for recording assessment data representing an assessment manipulation of the model of the object by the trainee user without guidance.Type: ApplicationFiled: March 4, 2011Publication date: August 1, 2013Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, NATIONAL UNIVERSITY HOSPITAL (S) PTE LTD, NATIONAL UNIVERSITY OF SINGAPOREInventors: Weimin Huang, Jiang Liu, Jiayin Zhou, Jing Zhang, Beng Hai Lee, Wing Kee Wong, Ngan Meng Tan, Zhou Zhang, Fengshou Yin, Stephen Chang, Chee Kong Chui, Yi Su
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Publication number: 20120230564Abstract: A non-stereo fundus image is used to obtain a plurality of glaucoma indicators. Additionally, genome data for the subject is used to obtain genetic marker data relating to one or more genes and/or SNPs associated with glaucoma. The glaucoma indicators indicators and genetic marker data are input into an adaptive model operative to generate an output indicative of a risk of glaucoma in the subject. In combination, the genetic indicators and genome data are more informative about the risk of glaucoma than either of the two in isolation. The adaptive model may be a two-stage model, having a first stage in which individual genetic indicators are combined with respective portions of the genome data by first adaptive model modules to form respective first outputs, and a second stage in which the first outputs are combined by a second adaptive mode.Type: ApplicationFiled: November 16, 2010Publication date: September 13, 2012Inventors: Jiang Liu, Zhuo Zhang, Wing Kee Damon Wong, Ngan Meng Tan, Fengshou Yin, Beng Hai Lee, Huiqi Li, Joo Hwee Lim, Carol Cheung, Tin Aung, Tien Yin Wong, Ziyang Liang, Jun Cheng, Baskaran Mani