Patents by Inventor Fereydoun Maali
Fereydoun Maali 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).
-
Patent number: 11288517Abstract: A system and method detects falling incidents on structures such as cruise vessels, oil rigs, overpasses, and buildings, and also detects overboarding movements onto structures such as cargo ships. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices monitor objects that pass through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real-world information such as size, trajectory, and location is determined.Type: GrantFiled: September 1, 2021Date of Patent: March 29, 2022Assignee: PureTech Systems Inc.Inventors: Brant Buchika, Marvin Wade Barnes, Fereydoun Maali
-
Publication number: 20210397851Abstract: A system and method detects falling incidents on structures such as cruise vessels, oil rigs, overpasses, and buildings, and also detects overboarding movements onto structures such as cargo ships. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices monitor objects that pass through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real-world information such as size, trajectory, and location is determined.Type: ApplicationFiled: September 1, 2021Publication date: December 23, 2021Applicant: PureTech Systems Inc.Inventors: Brant Buchika, Marvin Wade Barnes, Fereydoun Maali
-
Patent number: 11126857Abstract: A system and method detects falling incidents on structures such as cruise vessels, oil rigs, overpasses, and buildings, and also detects overboarding movements onto structures such as cargo ships. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices monitor objects that pass through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real-world information such as size, trajectory, and location is determined.Type: GrantFiled: December 27, 2019Date of Patent: September 21, 2021Inventors: Fereydoun Maali, Marvin Wade Barnes
-
Patent number: 10922552Abstract: A system and method for detecting a man overboard incident on structures such as cruise vessels and oil rigs. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices are located at the lowest deck of the structure and monitor a fall that passes through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real world information such as size, trajectory, and location is determined.Type: GrantFiled: February 10, 2017Date of Patent: February 16, 2021Assignee: PureTech Systems, Inc.Inventors: Fereydoun Maali, Marvin Wade Barnes
-
Patent number: 9936169Abstract: A system and method for autonomous tracking of aerial targets in real space in a featureless background includes capturing and processing first and second images. A resultant image is produced which includes blobs corresponding to elements in the real space. The resultant image is further processed, together with either or both of the first and second images. One of the blobs is analyzed, classified, and tracked as a target.Type: GrantFiled: May 10, 2017Date of Patent: April 3, 2018Inventors: Fereydoun Maali, Dilip Swaminathan, Marvin Wade Barnes, Travis A. Woodrow
-
Publication number: 20170154223Abstract: A system and method for detecting a man overboard incident on structures such as cruise vessels and oil rigs. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices are located at the lowest deck of the structure and monitor a fall that passes through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real world information such as size, trajectory, and location is determined.Type: ApplicationFiled: February 10, 2017Publication date: June 1, 2017Applicant: PureTech Systems, Inc.Inventors: Fereydoun Maali, Marvin Wade Barnes
-
Patent number: 9652860Abstract: A system for autonomous tracking of aerial targets in real space. The imaging means captures and aligns first and second images. A normalized correlation operation initiates a process for producing a resultant image including blobs corresponding to elements in the real space, despite the presence of a homogenous aerial background. One of the blobs is analyzed, classified, and tracked as a target.Type: GrantFiled: June 13, 2016Date of Patent: May 16, 2017Inventors: Fereydoun Maali, Dilip Swaminathan, Marvin Wade Barnes, Travis A. Woodrow
-
Patent number: 9569671Abstract: A system and method for detecting a man overboard incident on structures such as cruise vessels and oil rigs. The system includes at least two opposed imaging devices which record video streams of a detection cuboid within an overlapping region of view volumes for the imaging devices. The imaging devices are located at the lowest deck of the structure and monitor a fall that passes through the cuboid. Identified objects within the video streams are paired, their conformance is determined, and real world information such as size, trajectory, and location is determined.Type: GrantFiled: September 30, 2015Date of Patent: February 14, 2017Inventors: Fereydoun Maali, Marvin Wade Barnes
-
Patent number: 9471845Abstract: A surveillance system and method includes imaging means for processing images so that objects in the foreground are detected in the background and threats are identified. In the method, the imaging means acquires images and an initial background model is constructed from those images. Pixels are classified as either background or foreground for subsequent processing stages. In some embodiments, the imaging means is fixed in location and attitude, while in other embodiments, the imaging means is mounted to a moving platform and can alter its attitude. In such mobile applications, the system exploits geo-referencing as an aid in determining information about the pixels.Type: GrantFiled: February 10, 2016Date of Patent: October 18, 2016Inventors: Fereydoun Maali, Monroe M. Thomas, Dilip Swaminathan
-
Patent number: 9367748Abstract: An autonomous lock-on target tracking system and method with imaging means for a real space. The imaging means captures and aligns first and second images. A frame-differencing operation produces a resultant image including blobs corresponding to elements in the real space. One of the blobs is analyzed, classified, and tracked as a target.Type: GrantFiled: November 11, 2015Date of Patent: June 14, 2016Inventors: Fereydoun Maali, Dilip Swaminathan, Marvin Wade Barnes, Travis A. Woodrow
-
Patent number: 9292743Abstract: A video camera surveillance system includes a camera for acquiring a video stream and converting terrain space into image space and a method for processing the video stream so that objects in the foreground are detected in the background and threats are identified. In the method, the camera acquires the video stream, images in the video stream are stabilized, an initial background model is constructed, and pixels are classified as either background or foreground for subsequent processing stages such as morphological filtering, image segmentation, and background model updating. In some embodiments of the invention, the camera is fixed in location and attitude, while in other embodiments, the camera is mounted to a moving platform and can alter its attitude.Type: GrantFiled: March 13, 2014Date of Patent: March 22, 2016Inventors: Fereydoun Maali, Monroe M. Thomas, Dilip Swaminathan
-
Patent number: 9213904Abstract: An autonomous lock-on target tracking system and method with geospatial-aware PTZ cameras includes a camera imaging a terrain space. The camera acquires images, and first and second images are aligned. A frame-differencing operation produces a resultant image including blobs corresponding to elements in the terrain space. One of the blobs is classified as an object and tracked as a target. The target is tracked by determining the distance between a centroid of the target and a center of a field of view of the camera, and instructing the camera to move through the distance. The distance is continually updated as the camera and the target move. Disclosed are also methods for deploying the georeferencing enabled version of such PTZ camera on stationary and mobile land, sea and air platforms.Type: GrantFiled: December 14, 2014Date of Patent: December 15, 2015Inventors: Fereydoun Maali, Dilip Swaminathan, Marvin Wade Barnes, Travis A. Woodrow
-
Patent number: 8929603Abstract: An autonomous lock-on target tracking system and method with geospatial-aware PTZ cameras includes a camera imaging a terrain space. The camera acquires images, and first and second images are aligned. A frame-differencing operation produces a resultant image including blobs corresponding to elements in the terrain space. One of the blobs is classified as an object and tracked as a target. The target is tracked by determining the distance between a centroid of the target and a center of a field of view of the camera, and instructing the camera to move through the distance. The distance is continually updated as the camera and the target move.Type: GrantFiled: March 17, 2014Date of Patent: January 6, 2015Assignee: PureTech Systems, Inc.Inventors: Fereydoun Maali, Dilip Swaminathan, Marvin Wade Barnes
-
Patent number: 8599261Abstract: Method and apparatus for counting vehicles at entrances, exits and transition zones of multi-story carparks, including particularly where the ceiling heights can be just marginally higher than the tallest expected vehicle, with a view to determine the carpark occupancy at different carpark levels by counting passing vehicles using a vision-based car counting system without relying on viewing test patterns or employing a blocking beam scheme and yet tolerating vehicles transgressing partially or fully into the wrong lane of a two-lane two-way road while ignoring vehicles moving opposite to the expected direction. Without imposing additional constraints to ambient carpark illumination, the methodology copes with highly specular vehicle surfaces, ignores non-vehicular objects and detects moving cast shadow or highlight, and adapts to daily and seasonal scene changes, and yet estimates vehicle speed.Type: GrantFiled: November 20, 2012Date of Patent: December 3, 2013Assignee: PureTech Systems, Inc.Inventor: Fereydoun Maali
-
Patent number: 8564643Abstract: A method for constructing a georeferencing-enabled camera model and its deployment in georeferencing targets located in video sequences due to a single video camera. A video surveillance camera is modeled by a collection of rays converging at a virtual camera point and the retina resolution cell coordinates associated with those rays wherein the ray equations are first established, in the course of a calibration process, for a given camera view, with the aid of other views of the same video surveillance camera, as necessary, and using such a model for mapping image coordinates to terrain coordinates and vice versa in the intended view or its adaptation for use in other views of the same video surveillance camera.Type: GrantFiled: July 26, 2012Date of Patent: October 22, 2013Assignee: Puretech Systems Inc.Inventors: Fereydoun Maali, Monroe M. Thomas
-
Patent number: 8339454Abstract: Method and apparatus for counting vehicles at entrances, exits and transition zones of multi-story carparks, including particularly where the ceiling heights can be just marginally higher than the tallest expected vehicle, with a view to determine the carpark occupancy at different carpark levels by counting passing vehicles using a vision-based car counting system without relying on viewing test patterns or employing a blocking beam scheme and yet tolerating vehicles transgressing partially or fully into the wrong lane of a two-lane two-way road while ignoring vehicles moving opposite to the expected direction. Without imposing additional constraints to ambient carpark illumination, the methodology copes with highly specular vehicle surfaces, ignores non-vehicular objects and detects moving cast shadow or highlight, and adapts to daily and seasonal scene changes, and yet estimates vehicle speed.Type: GrantFiled: September 21, 2009Date of Patent: December 25, 2012Assignee: PureTech Systems Inc.Inventor: Fereydoun Maali
-
Patent number: 8253797Abstract: A method for constructing a georeferencing-enabled camera model and its deployment in georeferencing targets located in video sequences due to a single video camera. A video surveillance camera is modeled by a collection of rays converging at a virtual camera point and the retina resolution cell coordinates associated with those rays wherein the ray equations are first established, in the course of a calibration process, for a given camera view, with the aid of other views of the same video surveillance camera, as necessary, and using such a model for mapping image coordinates to terrain coordinates and vice versa in the intended view or its adaptation for use in other views of the same video surveillance camera.Type: GrantFiled: March 5, 2008Date of Patent: August 28, 2012Assignee: PureTech Systems Inc.Inventors: Fereydoun Maali, Monroe M. Thomas
-
Patent number: 7415150Abstract: One embodiment of the present invention provides a system that computes translational differentials between a “perfect” image (henceforth called a database-image) and a scanned-image of a photomask. During operation, the system receives a noise-free database-image and a scanned-image that is generated by an imaging process. Next, the system computes a set of candidate-translational-differentials using the database-image and the scanned-image. The system then generates one or more sets of translated directional-gradient-images based on the set of candidate-translational-differentials and using the database-image and the scanned-image. Next, the system converts the database-image into a set of smoothed directional-gradient-images. Finally, the system computes translational differentials by performing a normalized correlation using the set of smoothed directional-gradient-images and the one or more sets of translated directional-gradient-images.Type: GrantFiled: October 26, 2004Date of Patent: August 19, 2008Assignee: Synopsys, Inc.Inventor: Fereydoun Maali
-
Publication number: 20050286755Abstract: One embodiment of the present invention provides a system that computes translational differentials between a “perfect” image (henceforth called a database-image) and a scanned-image of a photomask. During operation, the system receives a noise-free database-image and a scanned-image that is generated by an imaging process. Next, the system computes a set of candidate-translational-differentials using the database-image and the scanned-image. The system then generates one or more sets of translated directional-gradient-images based on the set of candidate-translational-differentials and using the database-image and the scanned-image. Next, the system converts the database-image into a set of smoothed directional-gradient-images. Finally, the system computes translational differentials by performing a normalized correlation using the set of smoothed directional-gradient-images and the one or more sets of translated directional-gradient-images.Type: ApplicationFiled: October 26, 2004Publication date: December 29, 2005Inventor: Fereydoun Maali
-
Publication number: 20030215127Abstract: A system and method for simultaneously obtaining a plurality of images of an object or pattern from a plurality of different viewpoints is provided. In an exemplary embodiment, proper image contrast is obtained by replacing the light sources of earlier systems with equivalent light sensitive devices and replacing the cameras of earlier systems with equivalent light sources. With such a system, bright-field images and dark-field images may be simultaneously obtained. In one aspect of the invention, a light source is positioned to illuminate at least a portion of an object. A plurality of light guides having input ends are positioned to simultaneously receive light reflected from the object and transmit the received light to a plurality of photodetectors. The light guides are arranged such that their respective input ends are spaced substantially equally along at least a portion of a surface of an imaginary hemisphere surrounding the object.Type: ApplicationFiled: March 12, 2003Publication date: November 20, 2003Inventors: Howard Stern, Fereydoun Maali