Patents Assigned to Canon Research Centre France
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Patent number: 8654843Abstract: The present invention concerns a method of coding a plurality of digital image signals in a bitstream, said signals each corresponding to a view of a scene, the said coding method comprising the use of a pre-determined predictive coding structure, the views being associated with input views in the coding structure. The coding method according to the invention comprises, for at least one pair of views of the scene, steps of determining a spatial intersection zone (E44) and of calculating a value representing the similarity between the signals corresponding to said views (E45), according to at least some of the signals contained in said spatial intersection zone. These steps are followed by a step of associating (E46) at least one view with an input view of the predictive coding structure according to at least one calculated similarity value. The invention applies both to fixed image signals and to image sequences.Type: GrantFiled: October 12, 2007Date of Patent: February 18, 2014Assignee: Canon Research Centre FranceInventors: Patrice Onno, Xavier Henocq, Fabrice Le Leannec
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Publication number: 20130335524Abstract: The invention relates to a method of obtaining a stereoscopic signal from a sequence of monoscopic images. The method includes a step of obtaining a sequence of monoscopic images having been captured by an image acquisition apparatus in an acquisition mode enabling several images to be shot in the course of a regular movement substantially tangential to the plane of the lens of the acquisition apparatus. That step is followed by a step of forming pairs of images from the sequence of images, each pair being formed on the basis of a predetermined temporal distance then a step of calibrating the images of the pairs formed, so as to improve the visual correspondence between the two images. Finally, a stereoscopic signal is constructed from the pairs so calibrated.Type: ApplicationFiled: August 20, 2013Publication date: December 19, 2013Applicant: CANON RESEARCH CENTRE FRANCEInventors: Maryline Clare, Christophe Gisquet, Felix Henry
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Patent number: 8582664Abstract: Creation of a video sequence representative of a digital video sequence, wherein the digital video sequence is divided into a plurality video sections. For at least one of the video sections of the digital video sequence, at least one video portion of the video section is selected, a video segment is determined comprising the at least one selected video portion, at least one item of identification information is associated with the determined video segment for identification of the corresponding video section, at least one item of location information is also associated with the determined video segment for location within the digital video sequence of the at least one video portion included in the segment, and the determined segment is inserted in the video sequence representative of the digital video sequence.Type: GrantFiled: November 15, 2006Date of Patent: November 12, 2013Assignee: Canon Research Centre FranceInventors: Eric Nassor, Karine Renout
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Patent number: 8255444Abstract: The invention relates to a method of filtering a multidimensional digital signal comprising a plurality of samples, and comprises the following steps applied to each of the samples to filter, simulating the filtering of the sample to filter by applying at least one filter in a plurality of geometric orientations in the digital signal (S52), the simulation resulting in a plurality of simulated filtering values of the sample, and obtaining a filtering value of the filtered sample on the basis of the plurality of simulated filtering values of the sample according to at least one predetermined criterion (S58).Type: GrantFiled: July 31, 2006Date of Patent: August 28, 2012Assignee: Canon Research Centre FranceInventor: Felix Henry
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Patent number: 8031979Abstract: The method of verifying multimedia entities according to the invention to determine whether a first multimedia entity matches a second multimedia entity, is characterized in that it comprises a step of selecting from a plurality of second multimedia entities, by a content-based search, a set of second multimedia entities close to the first multimedia entity, and a step of deciding as to at least one match between the first multimedia entity and at least one second multimedia entity of the set of second multimedia entities, based on a comparison between the first multimedia entity and the second multimedia entities of the set.Type: GrantFiled: September 24, 2004Date of Patent: October 4, 2011Assignee: Canon Research Centre FranceInventors: Eric Nguyen, Hervé Le Floch, Stéphane Baron
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Patent number: 7672991Abstract: The invention concerns a method and device for configuring an electronic document processing peripheral. The invention concerns more particularly a method of determining a configuration profile for an electronic document processing peripheral with the configuration profile representing a set of parameters defining a particular configuration of the peripheral. To do so, the electronic document processing peripheral determines user characteristics as a function of a user identification of a data item and then determines, as a function of the user characteristics, a configuration profile applicable for configuring the peripheral.Type: GrantFiled: August 8, 2001Date of Patent: March 2, 2010Assignee: Canon Research Centre France S.A.Inventors: Jean-Jacques Moreau, Herve Dias, Francois Delumeau
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Publication number: 20080172434Abstract: The invention relates to a method of filtering a multidimensional digital signal comprising a plurality of samples, and comprises the following steps applied to each of the samples to filter, simulating the filtering of the sample to filter by applying at least one filter in a plurality of geometric orientations in the digital signal (S52), the simulation resulting in a plurality of simulated filtering values of the sample, and obtaining a filtering value of the filtered sample on the basis of the plurality of simulated filtering values of the sample according to at least one predetermined criterion (S58).Type: ApplicationFiled: July 31, 2006Publication date: July 17, 2008Applicant: CANON RESEARCH CENTRE FRANCEInventor: Felix Henry
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Publication number: 20080095231Abstract: The present invention concerns a method of coding a plurality of digital image signals in a bitstream, said signals each corresponding to a view of a scene, the said coding method comprising the use of a pre-determined predictive coding structure, the views being associated with input views in the coding structure. The coding method according to the invention comprises, for at least one pair of views of the scene, steps of determining a spatial intersection zone (E44) and of calculating a value representing the similarity between the signals corresponding to said views (E45), according to at least some of the signals contained in said spatial intersection zone. These steps are followed by a step of associating (E46) at least one view with an input view of the predictive coding structure according to at least one calculated similarity value. The invention applies both to fixed image signals and to image sequences.Type: ApplicationFiled: October 12, 2007Publication date: April 24, 2008Applicant: CANON RESEARCH CENTRE FRANCEInventors: Patrice Onno, Xavier Henocq, Fabrice Le Leannec
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Publication number: 20070110169Abstract: A method of creating a video sequence representative of a digital video sequence, characterized in that it comprises the following steps: dividing the digital image video sequence into a plurality video sections, for at least one of said video sections of the digital video sequence: selecting at least one video portion of the video section, determining a video segment comprising said at least one selected video portion, associating with the determined video segment at least one item of identification information for identification of the corresponding video section and at least one item of location information for location within the digital video sequence of said at least one video portion included in the segment, and inserting the determined segment in the video sequence representative of the digital video sequence.Type: ApplicationFiled: November 15, 2006Publication date: May 17, 2007Applicant: CANON RESEARCH CENTRE FRANCEInventors: Eric Nassor, Karine Renout
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Patent number: 7065592Abstract: This method of managing the resources of a computer communication means for processing a computer document stored on a processing control device connected by the communication means to at least one processing device includes a step of selecting at least one processing device of the communication means as a function of a first group of criteria relating to the functioning of this device, and a second group of criteria relating to its geographical situation.Type: GrantFiled: January 10, 2001Date of Patent: June 20, 2006Assignee: Canon Research Centre France S.A.Inventors: Stephane Amarger, Jean-Jacques Moreau, Isabelle Morvan, Lionel Tocze
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Patent number: 7031339Abstract: A method of communicating digital information of different data formats via a plurality of communication channels shared between several communication means includes a reception operation, a reformat operation, and a transmission operation. In the reception operation, digital information having a first format and transmitted via a first communication channel from communication means that uses the first format is received. In the reformat operation, the received digital information having the first format is reformatted to digital information having a second format different from the first format, if resources to use a second channel for transmission of digital information having the second format are available. In the transmission operation, the digital information having the second format is transmitted via the second channel and is received by communication means that uses the second format.Type: GrantFiled: October 26, 1999Date of Patent: April 18, 2006Assignee: Canon Research Centre France S.A.Inventor: Jean-Paul Accarie
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Publication number: 20060036383Abstract: The invention relates to a method of obtaining a stereoscopic signal from a sequence of monoscopic images. The method firstly comprises a step (S10) of obtaining a sequence of monoscopic images having been captured by an image acquisition apparatus in an acquisition mode enabling several images to be shot in the course of a regular movement substantially tangential to the plane of the lens of the acquisiton apparatus. That step is followed by a step (S31) of forming pairs of images from the sequence of images, each pair being formed on the basis of a predetermined temporal distance then a step of calibrating (S32) the images of the pairs formed, so as to improve the visual correspondence between the two images; Finally, a stereoscopic signal is constructed (S33) from the pairs so calibrated. FIG. 3.Type: ApplicationFiled: July 13, 2005Publication date: February 16, 2006Applicant: CANON RESEARCH CENTRE FRANCEInventors: Maryline Clare, Christophe Gisquet, Fellx Henry
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Publication number: 20050021852Abstract: A method of interconnection, through a gateway, between a first network of type IEEE 1394 enabling communications between a plurality of HAVi compliant devices and a second network enabling communications between a plurality of devices comprising the steps of: determining a global unique identifier for each device from the second network; determining a distinct IEEE 1394 address for each device from the second network; representing each device from the second network by a HAVI compliant software element hosted by the gateway; managing communication between devices from the first network and devices from the second network, using for each device from the second network, its corresponding software element associated with the global unique identifier and the IEEE1394 address.Type: ApplicationFiled: December 2, 2003Publication date: January 27, 2005Applicants: CANON RESEARCH CENTRE FRANCE S.A., CANON EUROPA NVInventors: Jean-Paul Accarie, Patrice Nezou
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Patent number: 6832225Abstract: A system for recording information relating to a document, which is accessible via a computer communication network, operates by extracting key words associated with the document, associating a binary code with each extracted key word to form associations, storing the associations in a dictionary, and storing an electronic address (URL) of the document and the binary codes in association with each other in an information storage unit of a user.Type: GrantFiled: December 3, 1999Date of Patent: December 14, 2004Assignee: Canon Research Centre France S.A.Inventors: Félix Henry, Jean-Jacques Moreau
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Patent number: 6795577Abstract: The invention concerns a method of analyzing a set of data representing physical quantities, including the steps of: decomposition (E20) of the set of data on a plurality of resolution levels, first segmentation (E21) of at least one sub-part of a given resolution level, into at least two homogeneous regions, said given resolution level not being the highest resolution level in the decomposition, characterized in that it includes the steps of: extraction (E81) of contour data from the result of the segmentation of the previous steps, second segmentation (E25) of at least one sub-part of the resolution level higher than the given level into at least one homogeneous region, as a function of the contour data extracted.Type: GrantFiled: December 1, 2000Date of Patent: September 21, 2004Assignee: Canon Research Centre France S.A.Inventor: Isabelle Amonou
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Patent number: 6766350Abstract: A method of marshalling on a computer communication network makes it possible to marshall a data object from a programming language used by a data processing application to a communication language which can be used by a communication protocol of the computer communication network. This marshalling method comprises the following steps: reading (E1) a data field included in the data object; substituting (E5-E7), for the data field, a computer address associated with the data field when the structure of the data field is complex; and storing (E5-E7) said computer address associated with the data field in a table of associations (T). Use notably for transferring data objects and executing remotely a function on a data object.Type: GrantFiled: June 21, 2000Date of Patent: July 20, 2004Assignee: Canon Research Centre France S.A.Inventor: Jean-Jacques Moreau
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Patent number: 6711298Abstract: The invention concerns a method of coding a set of data (IM) representing physical quantities, characterized in that it includes the steps of: decomposing (E20) the set of data into a plurality of frequency sub-bands on at least one resolution level, then, for each resolution level, segmenting (E23, E26) at least one sub-band into at least two homogeneous regions, in order to form a segmentation map, ordering (E30, E33) the regions according to a predetermined criterion, coding (E21) the sub-bands of the resolution level under consideration, ordering (E31, E34) the coding data of the sub-bands as a function of the order of the regions.Type: GrantFiled: June 15, 2000Date of Patent: March 23, 2004Assignee: Canon Research Centre France S.A.Inventor: Isabelle Amonou
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Publication number: 20030063804Abstract: The invention relates to a method of processing a digital signal comprising samples (a1, a2, . . .Type: ApplicationFiled: May 28, 2002Publication date: April 3, 2003Applicant: CANON RESEARCH CENTRE FRANCE S.A.Inventor: Felix Henry
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Patent number: 6299280Abstract: An apparatus for transmitting binary information between a first device carried by a first body and a second device carried by a second body, movable with respect to the first body along a path within a given range of movement, includes at least one first electrically conductive main plate on the first body along the path of the second body and a second electrically conductive main plate on the second body. The first and second main plates remain opposite each other, at a constant distance from each other, when there is a relative movement of the second body with respect to the first body within the range of movement along the path, such that the first and second main plates form a main capacitor with a constant capacitance.Type: GrantFiled: May 6, 1999Date of Patent: October 9, 2001Assignee: Canon Research Centre France S.A.Inventors: Pascal Coudray, Marie-Hélène Froger
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Patent number: 6028927Abstract: The present invention proposes a method and a device for detecting, amongst a set of signals, the presence of a periodic signal of period of occurrence T, in which a signal discriminating the said signal in the said set of signals is delivered. According to the invention, the discrimination signal is sampled in ln samples over more than one period T, a state value B(i) representing its level, and a true correlation value SR is calculated, by cumulating, for pairs of samples i and i+Z, the instantaneous value of correlation between the state value B(i) and the state value B(i+Z), the samples i and i+Z being located at instants shifted by a period T.Type: GrantFiled: December 26, 1996Date of Patent: February 22, 2000Assignee: Canon Research Centre-France S.A.Inventors: Fran.cedilla.ois Delumeau, Philippe Piret