Patents by Inventor Christopher Reginald Chatwin

Christopher Reginald Chatwin 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).

  • Publication number: 20200372281
    Abstract: Medical image data is analysed to produce a biomarker. The data is filtered with a plurality of band-pass filters each having a different bandwidth. A texture parameter is then determined from the filtered data from each filter and the biomarker is determined as at a ratio of the texture parameters. When the biomarker is obtained from a CT image of a liver, it can be predictive of poor survival, disease extent and liver physiology of a patient following resection of colorectal cancer. When obtained from a mammographic image, the biomarker can be indicative of cancer invasion and receptor status within mammographic abnormalities. When obtained from a CT image of a lung nodule, the biomarker can be predictive of tumour stage (or grading) and tumour metabolism of a patient with non-small cell lung carcinoma (lung cancer).
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Applicant: Texrad Limited
    Inventors: Balaji GANESHAN, Kenneth Alan MILES, Rupert Charles David YOUNG, Christopher Reginald CHATWIN
  • Publication number: 20180189594
    Abstract: Medical image data is analysed to produce a biomarker. The data is filtered with a plurality of band-pass filters each having a different bandwidth. A texture parameter is then determined from the filtered data from each filter and the biomarker is determined as at a ratio of the texture parameters. When the biomarker is obtained from a CT image of a liver, it can be predictive of poor survival, disease extent and liver physiology of a patient following resection of colorectal cancer. When obtained from a mammographic image, the biomarker can be indicative of cancer invasion and receptor status within mammographic abnormalities. When obtained from a CT image of a lung nodule, the biomarker can be predictive of tumour stage (or grading) and tumour metabolism of a patient with non-small cell lung carcinoma (lung cancer).
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Applicant: Texrad Limited
    Inventors: Balaji GANESHAN, Kenneth Alan MILES, Rupert Charles David YOUNG, Christopher Reginald CHATWIN
  • Publication number: 20100142775
    Abstract: Medical image data is analysed to produce a biomarker. The data is filtered with a plurality of band-pass filters each having a different bandwidth. A texture parameter is then determined from the filtered data from each filter and the biomarker is determined as at a ratio of the texture parameters. When the biomarker is obtained from a CT image of a liver, it can be predictive of poor survival, disease extent and liver physiology of a patient following resection of colorectal cancer. When obtained from a mammographic image, the biomarker can be indicative of cancer invasion and receptor status within mammographic abnormalities. When obtained from a CT image of a lung nodule, the biomarker can be predictive of tumour stage (or grading) and tumour metabolism of a patient with non-small cell lung carcinoma (lung cancer). When obtained from an MRI image of the brain, the biomarker can be indicative of schizophrenia and/or other brain disorders.
    Type: Application
    Filed: March 19, 2008
    Publication date: June 10, 2010
    Inventors: Balaji Ganeshan, Kenneth Alan Miles, Rupert Charles David Young, Christopher Reginald Chatwin
  • Publication number: 20090220126
    Abstract: An image of an eye is first captured and stored, as a 256 grey level image or as a colour image, and is then evaluated to determine thresholds between the values of pixels representing different parts of the eye. The thresholds are used to determine the boundary between the pupil and the iris and the boundary between the iris and the selera by determining the points at which lines across the image change their value with respect to a threshold value. Once the location of the iris has been found, the image is further processed to extract a biometric code from the iris using a linearisation procedure followed by a wavelet transformation. Finally, a biometric code is output by the processor.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 3, 2009
    Applicant: XVISTA BIOMETRICS LIMITED
    Inventors: Frederic Vladimir Claret-Tournier, Christopher Reginald Chatwin, David Rupert Charles Young, Karlis Harold Obrams
  • Patent number: 7368745
    Abstract: A star pattern recognition system (1) comprises an optical filter arrangement (10) in the form of an array (12) of independently tiltable mirrors (M1), (M2). Light from a distant starfield (2) is incident upon the mirror array (12). Each mirror (M1), (M2) reflects a respective image of the starfield, and these images are brought to a common overlapping focus at a detector (18) by a parabolic mirror (14). The mirrors M1, M2 are tilted relative to each other such that when a given star pattern to be recognised is present in the field of view of the filter, each mirror reflects the image of a different star in the pattern onto a common point on a detector (18), thereby providing a detectable output intensity peak that indicates the presence of the star pattern in the field of view of the filter arrangement.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: May 6, 2008
    Assignee: University of Sussex
    Inventors: Aristodimos Kouris, Christopher Reginald Chatwin