Patents by Inventor Reza Derakhshani
Reza Derakhshani 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: 9939893Abstract: Methods and systems for eye gaze tracking are provided, in which a plurality of images of at least one eye are received and, for each image of the eye(s), a plurality of stable vascular points associated with a vasculature of the eye(s) are identified. Based on the identified stable vascular points in the received images of the eye(s), a gaze angle of the eye(s) is determined.Type: GrantFiled: February 25, 2015Date of Patent: April 10, 2018Assignee: EyeVerify Inc.Inventors: Sashi Kanth Saripalle, Reza Derakhshani, Vikas Gottemukkula
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Patent number: 9361681Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.Type: GrantFiled: May 6, 2014Date of Patent: June 7, 2016Assignee: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula
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Patent number: 9311535Abstract: One aspect comprises obtaining one or more image regions from a first image of an eye. Each of the image regions may include a view of a respective portion of the white of the eye. The aspect may further comprise applying several distinct filters to each of the image regions to generate a plurality of respective descriptors for the region. The several distinct filters may include convolutional filters that are each configured to describe one or more aspects of an eye vasculature and in combination describe a visible eye vasculature in a feature space. A match score may be determined based on the generated descriptors and based on one or more descriptors associated with a second image of eye vasculature.Type: GrantFiled: May 30, 2014Date of Patent: April 12, 2016Assignee: EyeVerify, LLCInventors: Reza Derakhshani, Vikas Gottemukkula, Casey Hughlett
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Publication number: 20150241967Abstract: Methods and systems for eye gaze tracking are provided, in which a plurality of images of at least one eye are received and, for each image of the eye(s), a plurality of stable vascular points associated with a vasculature of the eye(s) are identified. Based on the identified stable vascular points in the received images of the eye(s), a gaze angle of the eye(s) is determined.Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventors: Sashi Kanth SARIPALLE, Reza DERAKHSHANI, Vikas GOTTEMUKKULA
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Patent number: 9104921Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: GrantFiled: July 18, 2014Date of Patent: August 11, 2015Assignee: EyeVerify, LLC.Inventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Publication number: 20150193666Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye.Type: ApplicationFiled: July 18, 2014Publication date: July 9, 2015Inventors: Reza DERAKHSHANI, Casey HUGHLETT, Jeremy PABEN, Joel TEPLY, Toby RUSH
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Publication number: 20140294252Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.Type: ApplicationFiled: May 6, 2014Publication date: October 2, 2014Applicant: EyeVerify LLCInventors: Reza DERAKHSHANI, Vikas Gottemukkula
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Publication number: 20140270405Abstract: In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining one or more image regions from a first image of an eye. Each of the image regions may include a view of a respective portion of the white of the eye. The method may further include applying several distinct filters to each of the image regions to generate a plurality of respective descriptors for the region. The several distinct filters may include convolutional filters that are each configured to describe one or more aspects of an eye vasculature and in combination describe a visible eye vasculature in a feature space. A match score may be determined based on the generated descriptors and based on one or more descriptors associated with a second image of eye vasculature.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: EyeVerify LLCInventors: Reza DERAKHSHANI, Vikas Gottemukkula, Casey Hughlett
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Patent number: 8787628Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: GrantFiled: March 17, 2014Date of Patent: July 22, 2014Assignee: EyeVerify LLCInventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Publication number: 20140198959Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: EyeVerify LLCInventors: Reza DERAKHSHANI, Casey HUGHLETT, Jeremy PABEN, Joel TEPLY, Toby RUSH
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Patent number: 8744141Abstract: In general, one aspect of the subject matter described can be embodied in methods that include obtaining one or more image regions from a first image of an eye. Each of the image regions may include a view of a respective portion of the white of the eye. The method may further include applying several distinct filters to each of the image regions to generate a plurality of respective descriptors for the region. The several distinct filters may include convolutional filters that are each configured to describe one or more aspects of an eye vasculature and in combination describe a visible eye vasculature in a feature space. A match score may be determined based on the generated descriptors and based on one or more descriptors associated with a second image of eye vasculature.Type: GrantFiled: July 24, 2013Date of Patent: June 3, 2014Assignee: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula, Casey Hughlett
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Patent number: 8724857Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining a first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.Type: GrantFiled: June 6, 2013Date of Patent: May 13, 2014Assignee: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula
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Patent number: 8675925Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: GrantFiled: October 21, 2013Date of Patent: March 18, 2014Assignee: Eyeverify LLCInventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Publication number: 20140044320Abstract: In general, one aspect of the subject matter described can be embodied in methods that include obtaining one or more image regions from a first image of an eye. Each of the image regions may include a view of a respective portion of the white of the eye. The method may further include applying several distinct filters to each of the image regions to generate a plurality of respective descriptors for the region. The several distinct filters may include convolutional filters that are each configured to describe one or more aspects of an eye vasculature and in combination describe a visible eye vasculature in a feature space. A match score may be determined based on the generated descriptors and based on one or more descriptors associated with a second image of eye vasculature.Type: ApplicationFiled: July 24, 2013Publication date: February 13, 2014Applicant: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula, Casey Hughlett
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Publication number: 20140044321Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicant: EyeVerify LLCInventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Publication number: 20140044318Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: ApplicationFiled: May 6, 2013Publication date: February 13, 2014Applicant: EyeVerify LLCInventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Publication number: 20140044319Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining a first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.Type: ApplicationFiled: June 6, 2013Publication date: February 13, 2014Inventors: Reza Derakhshani, Vikas Gottemukkula
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Patent number: 8483450Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining a first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.Type: GrantFiled: August 10, 2012Date of Patent: July 9, 2013Assignee: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula
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Patent number: 8437513Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining images of a subject including a view of an eye. The methods may further include determining a behavioral metric based on detected movement of the eye as the eye appears in a plurality of the images, determining a spatial metric based on a distance from a sensor to a landmark that appears in a plurality of the images each having a different respective focus distance, and determining a reflectance metric based on detected changes in surface glare or specular reflection patterns on a surface of the eye. The methods may further include determining a score based on the behavioral, spatial, and reflectance metrics and rejecting or accepting the one or more images based on the score.Type: GrantFiled: August 10, 2012Date of Patent: May 7, 2013Assignee: EyeVerify LLCInventors: Reza Derakhshani, Casey Hughlett, Jeremy Paben, Joel Teply, Toby Rush
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Patent number: 8369595Abstract: This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining one or more image regions from a first image of an eye. Each of the image regions may include a view of a respective portion of the white of the eye. The method may further include applying several distinct filters to each of the image regions to generate a plurality of respective descriptors for the region. The several distinct filters may include convolutional filters that are each configured to describe one or more aspects of an eye vasculature and in combination describe a visible eye vasculature in a feature space. A match score may be determined based on the generated descriptors and based on one or more descriptors associated with a second image of eye vasculature.Type: GrantFiled: August 10, 2012Date of Patent: February 5, 2013Assignee: EyeVerify LLCInventors: Reza Derakhshani, Vikas Gottemukkula, Casey Hughlett