Patents by Inventor Michele Stoppa

Michele Stoppa 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: 20220092331
    Abstract: Methods, systems, and computer readable media for providing personalized saliency models, e.g., for use in mixed reality environments, are disclosed herein, comprising: obtaining, from a server, a first saliency model for the characterization of captured images, wherein the first saliency model represents a global saliency model; capturing a first plurality of images by a first device; obtaining information indicative of a reaction of a first user of the first device to the capture of one or more images of the first plurality images; updating the first saliency model based, at least in part, on the obtained information to form a personalized, second saliency model; and transmitting at least a portion of the second saliency model to the server for inclusion into the global saliency model. In some embodiments, a user's personalized (i.e., updated) saliency model may be used to modify one or more characteristics of at least one subsequently captured image.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 24, 2022
    Inventors: Michele Stoppa, Mohamed Selim Ben Himane, Raffi A. Bedikian
  • Patent number: 11019330
    Abstract: A method for a computing device to recalibrate a multiple camera system includes collecting calibration data from one or more pictures captured by the multiple camera system of the computing device. The multiple camera system includes two or more cameras that are each physically separated by a distance from one another. The method further includes detecting decalibration of the camera system. The method further includes, when the camera system is decalibrated, generating recalibration parameters based on the calibration data. The method further includes determining whether the recalibration parameters are valid parameters and, when they are, updating the multiple camera system based on the recalibration parameters.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: May 25, 2021
    Assignee: AQUIFI, INC.
    Inventors: David Demirdjian, Britta Silke Hummel, Ahmed Tashrif Kamal, Michele Stoppa, Giuliano Pasqualotto, Pietro Salvagnini
  • Patent number: 10453185
    Abstract: A method for capturing a depth map includes: controlling a plurality of cameras to capture, concurrently, a plurality of first images during a first exposure interval, each of the cameras concurrently capturing a corresponding one of the first images, the cameras having overlapping fields of view; controlling a projection source to emit light at a first illumination level during the first exposure interval; controlling the cameras to capture, concurrently, a plurality of second images during a second exposure interval, each of the cameras concurrently capturing a corresponding one of the second images; controlling the projection source to emit light at a second illumination level during the second exposure interval, the second illumination level being different from the first illumination level; combining the first images with the second images to generate a depth map; and outputting the depth map.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: October 22, 2019
    Assignee: AQUIFI, INC.
    Inventors: Carlo Dal Mutto, Abbas Rafii, Pietro Salvagnini, Aryan Hazeghi, Michele Stoppa, Francesco Peruch, Giulio Marin
  • Publication number: 20180211373
    Abstract: A method for detecting a defect in an object includes: capturing, by one or more depth cameras, a plurality of partial point clouds of the object from a plurality of different poses with respect to the object; merging, by a processor, the partial point clouds to generate a merged point cloud; computing, by the processor, a three-dimensional (3D) multi-view model of the object; detecting, by the processor, one or more defects of the object in the 3D multi-view model; and outputting, by the processor, an indication of the one or more defects of the object.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 26, 2018
    Inventors: Michele Stoppa, Francesco Peruch, Giuliano Pasqualotto, Aryan Hazeghi, Pietro Salvagnini, Carlo Dal Mutto, Jason Trachewsky, Kinh Tieu
  • Patent number: 9826216
    Abstract: A pattern projection system includes a coherent light source, a repositionable DOE disposed to receive coherent light from said coherent light source and disposed to output at least one pattern of projectable light onto a scene to be imaged by an (x,y) two-dimensional optical acquisition system. Coherent light speckle artifacts in the projected pattern are reduced by rapidly controllably repositioning the DOE or the entire pattern projection system. Different projectable patterns are selected from a set of M patterns that are related to each other by a translation and/or rotation operation in two-dimensional cosine space. A resultant (x,y,z) depth map has improved quality and robustness due to projection of the selected patterns. Three-dimensional (x,y,z) depth data obtained from two-dimensional imaged data including despeckling is higher quality data than if projected patterns without despeckling were used.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: November 21, 2017
    Assignee: AQUIFI, INC.
    Inventors: Aryan Hazeghi, Carlo Dal Mutto, Giulio Marin, Francesco Peruch, Michele Stoppa, Abbas Rafii
  • Patent number: 9807371
    Abstract: A method for detecting decalibration of a depth camera system including a first, second, and third cameras having overlapping fields of view in a direction includes: detecting a feature in a first image captured by the first camera; detecting the feature in a second image captured by the second camera; detecting the feature in a third image captured by the third camera, the third camera being non-collinear with the first and second cameras; identifying a first conjugate epipolar line in the second image in accordance with a detected location of the feature in the first image and calibration parameters; identifying a second conjugate epipolar line in the second image in accordance with a detected location of the feature in the third image and the calibration parameters; and calculating a difference between a detected location of the feature in the second image and the first and second conjugate epipolar lines.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 31, 2017
    Assignee: Aquifi, Inc.
    Inventors: Pietro Salvagnini, Michele Stoppa, Abbas Rafii
  • Publication number: 20170223340
    Abstract: A method for detecting decalibration of a depth camera system including a first, second, and third cameras having overlapping fields of view in a direction includes: detecting a feature in a first image captured by the first camera; detecting the feature in a second image captured by the second camera; detecting the feature in a third image captured by the third camera, the third camera being non-collinear with the first and second cameras; identifying a first conjugate epipolar line in the second image in accordance with a detected location of the feature in the first image and calibration parameters; identifying a second conjugate epipolar line in the second image in accordance with a detected location of the feature in the third image and the calibration parameters; and calculating a difference between a detected location of the feature in the second image and the first and second conjugate epipolar lines.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Inventors: Pietro Salvagnini, Michele Stoppa, Abbas Rafii
  • Publication number: 20170180706
    Abstract: A method for detecting decalibration of a depth camera system including a first, second, and third cameras having overlapping fields of view in a direction includes: detecting a feature in a first image captured by the first camera; detecting the feature in a second image captured by the second camera; detecting the feature in a third image captured by the third camera, the third camera being non-collinear with the first and second cameras; identifying a first conjugate epipolar line in the second image in accordance with a detected location of the feature in the first image and calibration parameters; identifying a second conjugate epipolar line in the second image in accordance with a detected location of the feature in the third image and the calibration parameters; and calculating a difference between a detected location of the feature in the second image and the first and second conjugate epipolar lines.
    Type: Application
    Filed: May 5, 2016
    Publication date: June 22, 2017
    Inventors: Pietro Salvagnini, Michele Stoppa, Abbas Rafii
  • Patent number: 9674504
    Abstract: A method for detecting decalibration of a depth camera system including a first, second, and third cameras having overlapping fields of view in a direction includes: detecting a feature in a first image captured by the first camera; detecting the feature in a second image captured by the second camera; detecting the feature in a third image captured by the third camera, the third camera being non-collinear with the first and second cameras; identifying a first conjugate epipolar line in the second image in accordance with a detected location of the feature in the first image and calibration parameters; identifying a second conjugate epipolar line in the second image in accordance with a detected location of the feature in the third image and the calibration parameters; and calculating a difference between a detected location of the feature in the second image and the first and second conjugate epipolar lines.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: June 6, 2017
    Assignee: Aquifi, Inc.
    Inventors: Pietro Salvagnini, Michele Stoppa, Abbas Rafii
  • Publication number: 20170142312
    Abstract: A method for capturing a depth map includes: controlling a plurality of cameras to capture, concurrently, a plurality of first images during a first exposure interval, each of the cameras concurrently capturing a corresponding one of the first images, the cameras having overlapping fields of view; controlling a projection source to emit light at a first illumination level during the first exposure interval; controlling the cameras to capture, concurrently, a plurality of second images during a second exposure interval, each of the cameras concurrently capturing a corresponding one of the second images; controlling the projection source to emit light at a second illumination level during the second exposure interval, the second illumination level being different from the first illumination level; combining the first images with the second images to generate a depth map; and outputting the depth map.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 18, 2017
    Inventors: Carlo Dal Mutto, Abbas Rafii, Pietro Salvagnini, Aryan Hazeghi, Michele Stoppa, Francesco Peruch, Giulio Marin
  • Patent number: 9619042
    Abstract: A method for operating a real-time gesture based interactive system includes: obtaining a sequence of frames of data from an acquisition system; comparing successive frames of the data for portions that change between frames; determining whether any of the portions that changed are part of an interaction medium detected in the sequence of frames of data; defining a 3D interaction zone relative to an initial position of the part of the interaction medium detected in the sequence of frames of data; tracking a movement of the interaction medium to generate a plurality of 3D positions of the interaction medium; detecting movement of the interaction medium from inside to outside the 3D interaction zone at a boundary 3D position; shifting the 3D interaction zone relative to the boundary 3D position; computing a plurality of computed positions based on the 3D positions; and supplying the computed positions to control an application.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 11, 2017
    Assignee: Aquifi, Inc.
    Inventors: Carlo Dal Mutto, Giuliano Pasqualotto, Giridhar Murali, Michele Stoppa, Amir hossein Khalili, Ahmed Tashrif Kamal, Britta Hummel
  • Publication number: 20170017307
    Abstract: A method for operating a real-time gesture based interactive system includes: obtaining a sequence of frames of data from an acquisition system; comparing successive frames of the data for portions that change between frames; determining whether any of the portions that changed are part of an interaction medium detected in the sequence of frames of data; defining a 3D interaction zone relative to an initial position of the part of the interaction medium detected in the sequence of frames of data; tracking a movement of the interaction medium to generate a plurality of 3D positions of the interaction medium; detecting movement of the interaction medium from inside to outside the 3D interaction zone at a boundary 3D position; shifting the 3D interaction zone relative to the boundary 3D position; computing a plurality of 2D positions based on the 3D positions; and supplying the 2D positions to control an application.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Carlo Dal Mutto, Giuliano Pasqualotto, Giridhar Murali, Michele Stoppa, Amir hossein Khalili, Ahmed Tashrif Kamal, Britta Hummel
  • Patent number: 9501138
    Abstract: A method for operating a real-time gesture based interactive system includes: obtaining a sequence of frames of data from an acquisition system; comparing successive frames of the data for portions that change between frames; determining whether any of the portions that changed are part of an interaction medium detected in the sequence of frames of data; defining a 3D interaction zone relative to an initial position of the part of the interaction medium detected in the sequence of frames of data; tracking a movement of the interaction medium to generate a plurality of 3D positions of the interaction medium; detecting movement of the interaction medium from inside to outside the 3D interaction zone at a boundary 3D position; shifting the 3D interaction zone relative to the boundary 3D position; computing a plurality of 2D positions based on the 3D positions; and supplying the 2D positions to control an application.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 22, 2016
    Assignee: Aquifi, Inc.
    Inventors: Carlo Dal Mutto, Giuliano Pasqualotto, Giridhar Murali, Michele Stoppa, Amir hossein Khalili, Ahmed Tashrif Kamal, Britta Hummel
  • Publication number: 20160212418
    Abstract: A method for a computing device to recalibrate a multiple camera system includes collecting calibration data from one or more pictures captured by the multiple camera system of the computing device. The multiple camera system includes two or more cameras that are each physically separated by a distance from one another. The method further includes detecting decalibration of the camera system. The method further includes, when the camera system is decalibrated, generating recalibration parameters based on the calibration data. The method further includes determining whether the recalibration parameters are valid parameters and, when they are, updating the multiple camera system based on the recalibration parameters.
    Type: Application
    Filed: April 2, 2015
    Publication date: July 21, 2016
    Applicant: AQUIFI, INC.
    Inventors: David Demirdjian, Britta Silke Hummel, Ahmed Tashrif Kamal, Michele Stoppa, Giuliano Pasqualotto, Pietro Salvagnini
  • Publication number: 20150316996
    Abstract: A method for operating a real-time gesture based interactive system includes: obtaining a sequence of frames of data from an acquisition system; comparing successive frames of the data for portions that change between frames; determining whether any of the portions that changed are part of an interaction medium detected in the sequence of frames of data; defining a 3D interaction zone relative to an initial position of the part of the interaction medium detected in the sequence of frames of data; tracking a movement of the interaction medium to generate a plurality of 3D positions of the interaction medium; detecting movement of the interaction medium from inside to outside the 3D interaction zone at a boundary 3D position; shifting the 3D interaction zone relative to the boundary 3D position; computing a plurality of 2D positions based on the 3D positions; and supplying the 2D positions to control an application.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 5, 2015
    Inventors: Carlo Dal Mutto, Giuliano Pasqualotto, Giridhar Murali, Michele Stoppa, Amir hossein Khalili, Ahmed Tashrif Kamal, Britta Hummel
  • Patent number: 9129155
    Abstract: Systems and methods for initializing motion tracking of human hands within bounded regions are disclosed. One embodiment includes: a processor; reference and alternate view cameras; and memory containing a plurality of templates that are rotated and scaled versions of a base template. In addition, a hand tracking application configures the processor to: obtain reference and alternate view frames of video data; generate a depth map; identify at least one bounded region within the reference frame of video data containing pixels having distances from the reference camera that are within a specific range of distances; determine whether any of the pixels within the at least one bounded region are part of a human hand; track the motion of the part of the human hand in a sequence of frames of video data obtained from the reference camera; and confirm that the tracked motion corresponds to a predetermined initialization gesture.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: September 8, 2015
    Assignee: Aquifi, Inc.
    Inventors: Michele Stoppa, Britta Hummel, Carlo Dal Mutto, Giuliano Pasqualotto
  • Patent number: 9098739
    Abstract: Systems and methods for tracking human hands using parts based template matching are described. One embodiment of the invention includes a processor, a reference camera and memory containing: a hand tracking application; and a finger template including an edge features template. In addition, the hand tracking application configures the processor to: detect at least one candidate finger in a frame of video data received from the reference camera, where each candidate finger is a grouping of pixels identified by searching the frame of video data for a grouping of pixels that have image gradient orientations that match the edge features of the finger template accounting for rotation and scaling differences; and verify the correct detection of a candidate finger by confirming that the colors of the pixels within the grouping of pixels identified as a candidate finger satisfy a skin color criterion.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: August 4, 2015
    Assignee: Aquifi, Inc.
    Inventors: Carlo Dal Mutto, Britta Hummel, Michele Stoppa, Giuliano Pasqualotto, Teresa Mao, Giridhar Murali
  • Patent number: 9092665
    Abstract: Systems and methods for initializing motion tracking of human hands are disclosed. One embodiment includes a processor; a reference camera; and memory containing: a hand tracking application; and a plurality of edge feature templates that are rotated and scaled versions of a base template. The hand tracking application configures the processor to: determine whether any pixels in a frame of video are part of a human hand, where a part of a human hand is identified by searching the frame of video data for a grouping of pixels that have image gradient orientations that match the edge features of one of the plurality of edge feature templates; track the motion of the part of the human hand visible in a sequence of frames of video; confirm that the tracked motion corresponds to an initialization gesture; and commence tracking the human hand as part of a gesture based interactive session.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 28, 2015
    Assignee: Aquifi, Inc
    Inventors: Michele Stoppa, Britta Hummel, Carlo Dal Mutto, Giuliano Pasqualotto
  • Patent number: 8934675
    Abstract: Systems and methods for tracking human hands by performing parts based template matching using images captured from multiple viewpoints are described. One embodiment of the invention includes a processor, a reference camera, an alternate view camera, and memory containing: a hand tracking application; and a plurality of edge feature templates that are rotated and scaled versions of a finger template that includes an edge features template. In addition, the hand tracking application configures the processor to: detect at least one candidate finger in a reference frame, where each candidate finger is a grouping of pixels identified by searching the reference frame for a grouping of pixels that have image gradient orientations that match one of the plurality of edge feature templates; and verify the correct detection of a candidate finger in the reference frame by locating a grouping of pixels in an alternate view frame that correspond to the candidate finger.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: January 13, 2015
    Assignee: Aquifi, Inc.
    Inventors: Carlo Dal Mutto, Britta Hummel, Michele Stoppa, Giridhar Murali, Teresa Mao, Giuliano Pasqualotto
  • Publication number: 20140211991
    Abstract: Systems and methods for initializing motion tracking of human hands are disclosed. One embodiment includes a processor; a reference camera; and memory containing: a hand tracking application; and a plurality of edge feature templates that are rotated and scaled versions of a base template. The hand tracking application configures the processor to: determine whether any pixels in a frame of video are part of a human hand, where a part of a human hand is identified by searching the frame of video data for a grouping of pixels that have image gradient orientations that match the edge features of one of the plurality of edge feature templates; track the motion of the part of the human hand visible in a sequence of frames of video; confirm that the tracked motion corresponds to an initialization gesture; and commence tracking the human hand as part of a gesture based interactive session.
    Type: Application
    Filed: May 22, 2013
    Publication date: July 31, 2014
    Applicant: IMIMTEK, INC.
    Inventors: Michele Stoppa, Britta Hummel, Carlo Dal Mutto, Giuliano Pasqualotto