Patents by Inventor Atsushi Hatabu

Atsushi Hatabu 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: 10197502
    Abstract: For detecting a crack formed on a structure surface without erroneously, an information processing device that detects a crack on a structure, includes a change detection unit that detects a change in positions of at least two measurement points on the structure; and a crack detection unit that detects a crack based on the change in the positions of the measurement points detected by the change detection unit.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: February 5, 2019
    Assignee: NEC Corporation
    Inventors: Masahiko Ohta, Jun Takada, Hiroshi Imai, Atsushi Hatabu, Gaku Nakano, Zhen Wang, Yuzo Senda
  • Publication number: 20170038307
    Abstract: For detecting a crack formed on a structure surface without erroneously, an information processing device that detects a crack on a structure, includes a change detection unit that detects a change in positions of at least two measurement points on the structure; and a crack detection unit that detects a crack based on the change in the positions of the measurement points detected by the change detection unit.
    Type: Application
    Filed: February 19, 2015
    Publication date: February 9, 2017
    Inventors: Masahiko OHTA, Jun TAKADA, Hiroshi IMAI, Atsushi HATABU, Gaku NAKANO, Zhen WANG, Yuzo SENDA
  • Patent number: 9514544
    Abstract: Provided is a device for evaluating the importance of an in-image region and that can appropriately evaluate the importance in terms of meaning of an in-image region. A processing unit performs a process including color reduction with respect to an evaluation subject region of an image. An importance determination unit determines the importance of the evaluation subject region on the basis of the degree of magnitude of the error between the pre-processing signal value of the evaluation subject region and the post-processing signal value of the evaluation subject region.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: December 6, 2016
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Publication number: 20160071288
    Abstract: Provided is a device for evaluating the importance of an in-image region and that can appropriately evaluate the importance in terms of meaning of an in-image region. A processing unit performs a process including color reduction with respect to an evaluation subject region of an image. An importance determination unit determines the importance of the evaluation subject region on the basis of the degree of magnitude of the error between the pre-processing signal value of the evaluation subject region and the post-processing signal value of the evaluation subject region.
    Type: Application
    Filed: April 15, 2014
    Publication date: March 10, 2016
    Inventor: Atsushi HATABU
  • Patent number: 8468500
    Abstract: A program debugging method of debugging a memory access to memory areas during an execution of a program includes changing only addresses allocated to segments among addresses of the memory areas to change an arrangement of the segments, executing the program in which the arrangement of the segments is changed, tracing memory accesses involved in the execution of the program to obtain reference addresses referred to by the memory access, and obtaining at least one of execution results, and analyzing the reference addresses of a memory access to be analyzed according to an execution command, which includes an analysis target, and determining whether the memory access to be analyzed is valid, when it is determined that at least one of the plurality of execution results, the numbers of accesses, and the execution orders are the same in all executions in the analyzing of the execution result.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 18, 2013
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Patent number: 8446951
    Abstract: To provide a dynamic image receiving apparatus which receives dynamic image streams coded with inter-frame prediction such as MPEG from a plurality of channels, and collects the dynamic image streams containing intra-frame coded pictures from each channel in a short time. The dynamic image receiving apparatus includes: a time information accumulative processing device which accumulates code receiving time of the intra-frame coded picture of the dynamic image stream, and periodicity time information containing one of or both of presentation time information and decoding time information contained in the dynamic image stream for each dynamic image stream of the plurality of channels; code receiving time predicting devices which predict the code receiving time of the intra-frame coded pictures based on the periodicity time information; and a channel selection control device which controls channel selection of the dynamic image stream to be received based on the predicted code receiving time information.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: May 21, 2013
    Assignee: NEC Corporation
    Inventors: Katsunori Tanaka, Atsushi Hatabu, Yuzo Senda, Katsutoshi Seki, Tomoyoshi Kobori, Kosuke Nishihara, Soji Mori
  • Patent number: 8243813
    Abstract: The moving picture decoding device receives a moving picture bit stream compressed according to a coding method using interframe prediction and 2-dimensional discrete cosine transform. The device generates a decoded picture in a block unit from an interframe prediction picture generated by decoding the bit stream and a prediction residual generated by performing the 2-dimensional discrete cosine transform and integerization processing on a discrete cosine transform coefficient. The device judges, block-by-block, whether it is highly probable that the prediction residual of “0” is obtained by the processing of the 2-dimensional discrete cosine transform and integerization executed by the encoding device when compressing the bit stream. If YES, the interframe prediction picture is selected and outputted. Otherwise, the prediction residual generated by the decoding device is added to the interframe prediction picture so as to obtain a picture, which is selected and outputted.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: August 14, 2012
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Publication number: 20110194604
    Abstract: A code conversion/transmission apparatus for being supplied with compressed encoded data and converting and outputting the data to a transmission path has code converter/transmitters for outputting the encoded data input thereto and encoded data produced by re-encoding the encoded data input thereto, or outputting a plurality of encoded data comprising encoded data produced by separately re-encoding the encoded data input thereto, respectively, and transmitting the plurality of encoded data to at least one transmission path. At least a portion of the encoded data input thereto and at least a portion of the re-encoded encoded data are transmitted to the transmission path.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Applicant: NEC CORPORATION
    Inventors: Hiroaki DEI, Atsushi HATABU, Kazunori OZAWA
  • Patent number: 7957465
    Abstract: A code conversion/transmission apparatus for being supplied with compressed encoded data and converting and outputting the data to a transmission path has code converter/transmitters for outputting the encoded data input thereto and encoded data produced by re-encoding the encoded data input thereto, or outputting a plurality of encoded data comprising encoded data produced by separately re-encoding the encoded data input thereto, respectively, and transmitting the plurality of encoded data to at least one transmission path. At least a portion of the encoded data input thereto and at least a portion of the re-encoded encoded data are transmitted to the transmission path.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: June 7, 2011
    Assignee: NEC Corporation
    Inventors: Hiroaki Dei, Atsushi Hatabu, Kazunori Ozawa
  • Patent number: 7813558
    Abstract: There is provided a template matching method having a small amount of calculation and high detection accuracy. The amount of calculation is reduced while minimizing the degradation of the detection accuracy by calculating the similarity between a template image region and a reference image region at rough position intervals and estimating by interpolation of the similarity at a position where it is not calculated from the similarity calculated at a peripheral position. At the time, even if the gradient of a similarity greatly changes at the minimal point, estimation can be realized with high accuracy by executing estimation making use of the directional gradients of the similarity obtained in plural different directions independently.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: October 12, 2010
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Publication number: 20100257511
    Abstract: A program debugging device 1 includes an address allocating unit 12 that changes only addresses allocated to segments to change the arrangement of the segments, memory access tracing units 11-1 to 11-T that execute a program in which the arrangement of the segments is changed, trace a memory access involved in the execution of the program to obtain a reference address referred to by the memory access, and obtain at least one of the execution result of the program, the number of times the memory access is performed, and the order in which the program is executed, an execution result analyzing unit 131 that determines whether at least one of a plurality of execution results obtained by performing the program plural times, the number of accesses, and the execution order is the same in all executions, and a memory access analyzing unit 132 that analyzes the reference address of a memory access to be analyzed and determines whether the memory access to be analyzed is valid, when it is determined that at least one
    Type: Application
    Filed: December 12, 2008
    Publication date: October 7, 2010
    Inventor: Atsushi Hatabu
  • Publication number: 20100246673
    Abstract: To provide a dynamic image receiving apparatus which receives dynamic image streams coded with inter-frame prediction such as MPEG from a plurality of channels, and collects the dynamic image streams containing intra-frame coded pictures from each channel in a short time. The dynamic image receiving apparatus includes: a time information accumulative processing device which accumulates code receiving time of the intra-frame coded picture of the dynamic image stream, and periodicity time information containing one of or both of presentation time information and decoding time information contained in the dynamic image stream for each dynamic image stream of the plurality of channels; code receiving time predicting devices which predict the code receiving time of the intra-frame coded pictures based on the periodicity time information; and a channel selection control device which controls channel selection of the dynamic image stream to be received based on the predicted code receiving time information.
    Type: Application
    Filed: September 19, 2008
    Publication date: September 30, 2010
    Applicant: NEC CORPORATION
    Inventors: Katsunori Tanaka, Atsushi Hatabu, Yuzo Senda, Katsutoshi SEKI, Tomoyoshi Kobori, Kosuke Nishihara, Soji Mori
  • Publication number: 20100046636
    Abstract: The moving picture decoding device receives a moving picture bit stream compressed according to a coding method using interframe prediction and 2-dimensional discrete cosine transform. The device generates a decoded picture in a block unit from an interframe prediction picture generated by decoding the bit stream and a prediction residual generated by performing the 2-dimensional discrete cosine transform and integerization processing on a discrete cosine transform coefficient. The device judges, block-by-block, whether it is highly probable that the prediction residual of “0” is obtained by the processing of the 2-dimensional discrete cosine transform and integerization executed by the encoding device when compressing the bit stream. If YES, the interframe prediction picture is selected and outputted. Otherwise, the prediction residual generated by the decoding device is added to the interframe prediction picture so as to obtain a picture, which is selected and outputted.
    Type: Application
    Filed: April 24, 2008
    Publication date: February 25, 2010
    Inventor: Atsushi Hatabu
  • Publication number: 20080273800
    Abstract: There is provided a template matching method having a small amount of calculation and high detection accuracy. The amount of calculation is reduced while minimizing the degradation of the detection accuracy by calculating the similarity between a template image region and a reference image region at rough position intervals and estimating by interpolation of the similarity at a position where it is not calculated from the similarity calculated at a peripheral position. At the time, even if the gradient of a similarity greatly changes at the minimal point, estimation can be realized with high accuracy by executing estimation making use of the directional gradients of the similarity obtained in plural different directions independently.
    Type: Application
    Filed: January 11, 2006
    Publication date: November 6, 2008
    Inventor: Atsushi Hatabu
  • Patent number: 7397411
    Abstract: A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatus 100 for inputting audio coded data includes first to N-th code conversion and transmission units 102 and 104 to 106 for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines 130. The second to N-th audio code conversion and transmission units 104 to 106 codes a frame at a compression rate equal to or higher than the rate of input coded data.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: July 8, 2008
    Assignee: NEC Corporation
    Inventors: Kazunori Ozawa, Hiroaki Dei, Atsushi Hatabu
  • Patent number: 7298295
    Abstract: A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatus 100 for inputting audio coded data includes first to N-th code conversion and transmission units 102 and 104 to 106 for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines 130. The second to N-th audio code conversion and transmission units 104 to 106 codes a frame at a compression rate equal to or higher than the rate of input coded data.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: November 20, 2007
    Assignee: NEC Corporation
    Inventors: Kazunori Ozawa, Hiroaki Dei, Atsushi Hatabu
  • Patent number: 7209635
    Abstract: A moving picture editing method is disclosed, in which if one or two reference frames utilized for motion compensation of P or B frame, constituting a part of moving picture before editing and not deleted in edition so as to constitute moving picture after editing, is subject to error generation in processing although not subject to lack in edition, motion vectors in a range centered on each motion vector V before editing of the P or B frame, are searched for the motion vector V? after editing corresponding to the minimum value of the difference between the motion compensated picture MC (X, V) before edition and motion compensated picture MC (X?, V?) after editing.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 24, 2007
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Patent number: 7203374
    Abstract: In a process of resolving the two-dimensional orthogonal transformation into the one-dimension orthogonal transformations in a horizontal direction and a vertical direction, with respect to each signal vector within the block memory to be orthogonal-transformed in a vertical direction orthogonal transforming unit after having been orthogonal-transformed in a horizontal direction orthogonal transforming unit, a power calculating unit calculates the power of each signal vector, a threshold obtaining unit requires a threshold enabling the quantized coefficient signal to take a value other than zero, and a value comparing unit compares the both powers.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: April 10, 2007
    Assignee: NEC Corporation
    Inventor: Atsushi Hatabu
  • Patent number: 7180434
    Abstract: A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatus 100 for inputting audio coded data includes first to N-th code conversion and transmission units 102 and 104 to 106 for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines 130. The second to N-th audio code conversion and transmission units 104 to 106 codes a frame at a compression rate equal to or higher than the rate of input coded data.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: February 20, 2007
    Assignee: NEC Corporation
    Inventors: Kazunori Ozawa, Hiroaki Dei, Atsushi Hatabu
  • Publication number: 20070030181
    Abstract: A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatus 100 for inputting audio coded data includes first to N-th code conversion and transmission units 102 and 104 to 106 for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines 130. The second to N-th audio code conversion and transmission units 104 to 106 codes a frame at a compression rate equal to or higher than the rate of input coded data.
    Type: Application
    Filed: October 5, 2006
    Publication date: February 8, 2007
    Applicant: NEC Corporation
    Inventors: Kazunori Ozawa, Hiroaki Dei, Atsushi Hatabu