Patents by Inventor Martin Vetterli

Martin Vetterli 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: 20200278251
    Abstract: The present disclosure concerns a multi-spectral image printing method. The method includes the steps of:—providing a multi-spectral image;—providing a material;—determining changes in a refractive index value of the material permitting to reproduce the multi-spectral image when the material is illuminated; and—generating the changes in refractive index value in the material.
    Type: Application
    Filed: October 22, 2018
    Publication date: September 3, 2020
    Inventors: Adam SCHOLEFIELD, Martin VETTERLI, Yves BELLOUARD, Michalina PACHOLSKA, Gilles BAECHLER, Arnaud LATTY
  • Patent number: 10728298
    Abstract: A computer-implemented method for sensing streaming data comprises recursively sampling an input stream of data using overlapping windowing to obtain at least one previous measurement regarding the input data stream, and employing the at least one previous measurement for obtaining a subsequent measurement.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Nikolaos Freris, Orhan Ocal, Martin Vetterli
  • Patent number: 10475392
    Abstract: The present invention concerns a method of method of relighting a media item comprising media elements.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 12, 2019
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Niranjan Thanikachalam, Loic Arnaud Baboulaz, Damien Firmenich, Sabine Suesstrunk, Martin Vetterli
  • Patent number: 10107747
    Abstract: The invention refers to a method for analyzing reflected light of an object. First a light angle distribution for a point of the object is determined. Then a plenoptic projector is controlled to illuminate the point of the object with the determined light angle distribution. Then the reflected light intensity of the point of the object is measured and the measured reflected light is analyzed in dependence of the determined light angle distribution.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 23, 2018
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Loic A. Baboulaz, Martin Vetterli, Paolo Prandoni
  • Patent number: 9959644
    Abstract: A computerized method for annotating at least one feature of an image of a view, includes the steps of obtaining the image with an image sensor of a portable device, and retrieving at least one condition. Based on the at least one condition, the method automatically selects a feature identification method among a plurality of features identification methods. It then applies the feature identification method for identifying the at least one feature, and annotates some of the identified features.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: May 1, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mathieu Monney, Serge Ayer, Martin Vetterli
  • Patent number: 9953438
    Abstract: A system for automated annotation of images and videos points a mobile device towards an object of interest, such as a building or landscape scenery, for the device to display an image of the scene with an annotation for the object. An annotation can include names, historical information, and links to databases of images, videos, and audio files. Different techniques can be used for determining positional placement of annotations, and, by using multiple techniques, positioning can be made more precise and reliable. The level of detail of annotation information can be adjusted according to the precision of the techniques used. A trade-off can be taken into account between precision of annotation and communication cost, delay and/or power consumption. An annotation database can be updated in a self-organizing way. Public information as available on the web can be converted to annotation data.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 24, 2018
    Assignee: Ecole Polytechnic Federale De Lausanne (EPFL)
    Inventors: Luciano Sbaiz, Martin Vetterli
  • Patent number: 9949056
    Abstract: A method for modifying an audio scene and/or presenting additional information relevant to the audio scene includes capturing audio signals from the audio scene with a plurality of microphones; outputting an audio signal with a plurality of acoustical transducers; processing the captured audio signals, where the processing comprises one or more of filtering, equalization, echoes processing, and beamforming; separating and distinguishing audio signal sources using the processed audio signals; selecting at least one separated audio signal source; classifying the at least one selected separated audio signal source; retrieving additional information related to the classified audio signal source; and presenting the additional information in a perceptible form.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: April 17, 2018
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Juri Ranieri, Ivan Dokmanic, Martin Vetterli
  • Patent number: 9949050
    Abstract: The present invention concerns a method for calibrating an array of receivers (rj), each receiver being configured for receiving a signal transmitted by at least one transmitter (si), and echoes of the transmitted signal as reflected by one or more reflective surfaces (w), said method comprising the following steps: sorting said echoes, by assigning each echo to a reflective surface or to a combination of reflective surfaces (w) calibrating said array of receivers (rj) based on said sorting.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 17, 2018
    Assignee: Ecole Polytechnic Federale De Lausanne (EPFL)
    Inventors: Ivan Dokmanic, Laurent Daudet, Martin Vetterli
  • Publication number: 20170269777
    Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm
  • Patent number: 9759805
    Abstract: An acoustic processing method for M acoustic receivers comprising the steps of: Determining a beamforming weight vector with M weights for the M acoustic receivers based on at least one the steering vector of at least one real acoustic source, on steering vectors of image sources of the at least one real acoustic source and on a first matrix depending on the covariance matrix of the noise and/or on at least one interfering sound source, wherein each of the image sources corresponds to one path of the acoustic signal between one of the at least one real source and one of the M acoustic receivers with at least one reflection; and linearly combining the M acoustic signals received at the M acoustic receivers on the basis of the M weights of the beamforming vector.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: September 12, 2017
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Ivan Dokmanic, Robin Scheibler, Martin Vetterli
  • Publication number: 20170256208
    Abstract: The present invention concerns a method of method of relighting a media item comprising media elements.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 7, 2017
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Niranjan Thanikachalam, Loic Arnaud Baboulaz, Damien Firmenich, Sabine Suesstrunk, Martin Vetterli
  • Patent number: 9705623
    Abstract: A computer-implemented method for determining the Walsh-Hadamard transform of N samples of a signal, comprises electing a plurality of hashing C matrices ?1, . . . ?C, computing C hashes of a particular length based at least on a hashing front end and the plurality of matrices ?1, . . . ?C, forming a bipartite graph with a plurality of variable nodes and a plurality of check nodes, the variable nodes being non-zero coefficients to recover, and the check nodes being hashed samples, finding an isolated check node and recovering non-zero coefficients connected to the isolated check node by employing collision detection and support estimation of the signal, peeling from the bipartite graph the recovered non-zero coefficients, and repeating the computing step, forming step, finding step and peeling step until all the nodes in the plurality of check nodes are zero.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: July 11, 2017
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Robin Scheibler, Saeid Haghighatshoar, Martin Vetterli
  • Publication number: 20170188173
    Abstract: A method for presenting to a user of a wearable audio device a modified audio scene together with additional information related to the audio scene, comprising: capturing audio signals with a plurality of microphones; outputting an audio signal with a plurality of acoustical transducers; processing the captured audio signals, the processing comprising filtering, equalization, echoes processing and/or beamforming; separating audio sources from the processed audio signals; selecting at least one separated audio source; classifying at least one said selected audio source; retrieving additional information related to the classified audio source; presenting the additional information to the user.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 29, 2017
    Inventors: Juri RANIERI, Ivan DOKMANIC, Martin VETTERLI
  • Patent number: 9671900
    Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 6, 2017
    Assignee: Rapt IP Limited
    Inventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm
  • Publication number: 20170148208
    Abstract: Method for processing a circular light field comprising the step of receiving or storing a circular light field matrix, wherein the circular light field matrix comprises pixel data for different circumferential angles and for different incidence angles, wherein each circumferential angle represents one intersection point of a light ray with a circle, and each incidence angle represents an angle of incidence of the light ray in the plane of the circle at the one intersection point; and the step of determining a sub set of pixel data of the circular light field matrix relating to a location by determining for each different circumferential angle an incidence angle related to said location.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 25, 2017
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Zhou XUE, Martin VETTERLI, Loic Arnaud BABOULAZ
  • Patent number: 9625309
    Abstract: A device for determining a bidirectional reflectance distribution function of a subject, including a light source for producing an incident light that is directed onto a subject at a predetermined zenith angle and at a predetermined azimuth angle, an element for displacing the light source at any location on the periphery of a hemispherical area centered on the subject, an element for measuring the bidirectional reflectance distribution function of the subject from one fixed location that is preferably aligned with a normal direction defined by the subject, a control unit adapted to control the element for displacing and/or the element for measuring. The element for displacing includes an arc-shaped arm at one end fixedly connected to the light source and slideably connected to a first support to adjust the zenith angle, and an element for pivoting the first support about the normal direction to permit adjustment of the azimuth angle.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: April 18, 2017
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Loïc Arnaud Baboulaz, Gaël Georges Soudan, Martin Vetterli
  • Patent number: 9613256
    Abstract: A method of local feature identification comprises retrieving data representing a lightfield, forming an epipolar volume (V) from the retrieved data, applying a transform to epipolar planes retrieved from the epipolar volume, so as to represent the epipolar planes in a new space, identifying a plurality of epipolar lines, and identifying local features (fp) based on at least some of the epipolar lines.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: April 4, 2017
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Alireza Ghasemi, Laurent Rime, Martin Vetterli
  • Publication number: 20170091945
    Abstract: System comprising at least one sensor configured to take a set of images from different viewpoints of a scene; a processor configured to identifying a point source represented in the images of a set of images; computing for each image of the set of images the subspace of potential locations of the point source in the scene on the basis of the viewpoint or a viewpoint region of the image and on the basis of the subregion of the image representing the point source; and computing a point intersection region of the subspaces of potential locations of the point source of the images of the set of images.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 30, 2017
    Inventors: MARTIN VETTERLI, Alireza Ghasemi, Adam Scholefield
  • Patent number: 9591168
    Abstract: The present invention relates to an apparatus for imaging a page of a book or other similar document comprising: a table defining a support plane, the book being disposed on the table such that the page to image is substantially parallel to the support plane and an other page of the book is orientated at an angle ? relative to the support plane, ? being between 0° and 70°; means for displacing the table parallel to the support plane along a longitudinal direction and a lateral direction and/or perpendicular to the support plane along a normal direction; a plurality of light sources, each light source producing an incident light and directing said incident light onto an inspection area of the page to image at a predetermined zenith angle ?i and at a predetermined azimuth angle ?i; means for sensing the light reflected by the page to image; at least one control unit adapted to control said displacing means, said light sources and said sensing means; wherein the light sources are fixedly connected to a ma
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 7, 2017
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Loic Arnaud Baboulaz, Martin Vetterli
  • Publication number: 20170019554
    Abstract: The present invention relates to an apparatus for imaging a page of a book or other similar document comprising: a table defining a support plane, the book being disposed on the table such that the page to image is substantially parallel to the support plane and an other page of the book is orientated at an angle ? relative to the support plane, a being between 0° and 70°; means for displacing the table parallel to the support plane along a longitudinal direction and a lateral direction and/or perpendicular to the support plane along a normal direction; a plurality of light sources, each light source producing an incident light and directing said incident light onto an inspection area of the page to image at a predetermined zenith angle ?i and at a predetermined azimuth angle ?i; means for sensing the light reflected by the page to image; at least one control unit adapted to control said displacing means, said light sources and said sensing means; wherein the light sources are fixedly connected to a ma
    Type: Application
    Filed: July 17, 2015
    Publication date: January 19, 2017
    Inventors: Loic Arnaud Baboulaz, Martin Vetterli