Patents by Inventor Norimichi Hiwasa
Norimichi Hiwasa 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).
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Patent number: 11051014Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: GrantFiled: June 2, 2020Date of Patent: June 29, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
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Publication number: 20200296361Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: ApplicationFiled: June 2, 2020Publication date: September 17, 2020Applicant: Mitsubishi Electric CorporationInventors: Ryoji HATTORI, Akira MINEZAWA, Yusuke ITANI, Kazuo SUGIMOTO, Shunichi SEKIGUCHI, Yoshimi MORIYA, Norimichi HIWASA
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Patent number: 10708586Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: GrantFiled: November 19, 2019Date of Patent: July 7, 2020Assignee: MITSUBISHI ELECTRONIC CORPORATIONInventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
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Publication number: 20200092549Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: ApplicationFiled: November 19, 2019Publication date: March 19, 2020Applicant: Mitsubishi Electric CorporationInventors: Ryoji HATTORI, Akira MINEZAWA, Yusuke ITANI, Kazuo SUGIMOTO, Shunichi SEKIGUCHI, Yoshimi MORIYA, Norimichi HIWASA
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Patent number: 10523935Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: GrantFiled: January 25, 2018Date of Patent: December 31, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
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Patent number: 10264289Abstract: Since time hierarchically encoded video data needs to include video data of a basic hierarchical layer, and video data cannot be generated in which a frame belonging to an upper hierarchical layer is only encoded, even in a case in which only a part of frames is processed, a basic hierarchical layer frame is needed to be included, and thus, there has been a problem that video data in which only the frame belonging to the upper hierarchical layer is encoded cannot be separately processed. In the present invention, a variable length encoding unit is disposed which encodes, for each sequence, a basic hierarchical layer existence flag showing whether or not a basic hierarchical layer is included in the sequence.Type: GrantFiled: May 27, 2013Date of Patent: April 16, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshimi Moriya, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa, Yusuke Itani, Ryoji Hattori
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Patent number: 10009616Abstract: A variable length encoding unit 13 variable-length-encodes an index indicating a classification method of carrying out a class classification on each coding block having a largest size, the classification method being determined by a loop filter unit 11, and also variable-length-encodes a parameter about an offset value for each class determined for each coding block having the largest size on the basis of a binarization process using a truncated unary code.Type: GrantFiled: April 3, 2013Date of Patent: June 26, 2018Assignee: Mitsubishi Electric CorporationInventors: Akira Minezawa, Kazuo Sugimoto, Norimichi Hiwasa, Shunichi Sekiguchi
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Publication number: 20180152702Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: ApplicationFiled: January 25, 2018Publication date: May 31, 2018Applicant: Mitsubishi Electric CorporationInventors: Ryoji HATTORI, Akira MINEZAWA, Yusuke ITANI, Kazuo SUGIMOTO, Shunichi SEKIGUCHI, Yoshimi MORIYA, Norimichi HIWASA
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Patent number: 9986235Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: GrantFiled: October 30, 2012Date of Patent: May 29, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
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Patent number: 9774872Abstract: When the signal format of a color image is YUV4:2:2, and an intra prediction parameter, which is used for an intra-frame prediction process on the chrominance signals in a prediction block, shows the same prediction mode as an intra prediction mode for the luminance signal in the prediction block, an intra prediction unit 4 converts an index indicating the intra prediction mode for the luminance signal, and performs the intra-frame prediction process on the chrominance signals in an intra prediction mode indicated by the index after conversion.Type: GrantFiled: April 4, 2014Date of Patent: September 26, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira Minezawa, Ryoji Hattori, Takayuki Semitsu, Yoshimi Moriya, Norimichi Hiwasa, Shunichi Sekiguchi
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Publication number: 20160050421Abstract: When the signal format of a color image is YUV4:2:2, and an intra prediction parameter, which is used for an intra-frame prediction process on the chrominance signals in a prediction block, shows the same prediction mode as an intra prediction mode for the luminance signal in the prediction block, an intra prediction unit 4 converts an index indicating the intra prediction mode for the luminance signal, and performs the intra-frame prediction process on the chrominance signals in an intra prediction mode indicated by the index after conversion.Type: ApplicationFiled: April 4, 2014Publication date: February 18, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira MINEZAWA, Ryoji HATTORI, Takayuki SEMITSU, Yoshimi MORIYA, Norimichi HIWASA, Shunichi SEKIGUCHI
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Publication number: 20160021379Abstract: A variable length encoding unit 13 variable-length-encodes an index indicating a classification method of carrying out a class classification on each coding block having a largest size, the classification method being determined by a loop filter unit 11, and also variable-length-encodes a parameter about an offset value for each class determined for each coding block having the largest size on the basis of a binarization process using a truncated unary code.Type: ApplicationFiled: April 3, 2013Publication date: January 21, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira MINEZAWA, Kazuo SUGIMOTO, Norimichi HIWASA, Shunichi SEKIGUCHI
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Publication number: 20150271502Abstract: A motion-compensated prediction unit 6 is configured in such a way as to, when the coding unit of a coding target picture differs from that of a reference picture, correct a reference vector held by a reference picture and derive a prediction vector from the corrected reference vector. As a result, application to the HEVC can be achieved even when the encoding based on a per frame basis and the encoding based on a per field basis coexist.Type: ApplicationFiled: September 27, 2013Publication date: September 24, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryoji Hattori, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa, Yoshimi Moriya
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Publication number: 20150195582Abstract: Since time hierarchically encoded video data needs to include video data of a basic hierarchical layer, and video data cannot be generated in which a frame belonging to an upper hierarchical layer is only encoded, even in a case in which only a part of frames is processed, a basic hierarchical layer frame is needed to be included, and thus, there has been a problem that video data in which only the frame belonging to the upper hierarchical layer is encoded cannot be separately processed. In the present invention, a variable length encoding unit is disposed which encodes, for each sequence, a basic hierarchical layer existence flag showing whether or not a basic hierarchical layer is included in the sequence.Type: ApplicationFiled: May 27, 2013Publication date: July 9, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshimi Moriya, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa, Yusuke Itani, Ryoji Hattori
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Publication number: 20150043630Abstract: An image decoding device and an image decoding method are disclosed. The decoding device includes: a variable length decoder to variable-length-decode an inputted encoded bit stream to obtain a parameter for prediction signal generation, a compressed difference image, and filters; and a filtering processor to carry out a filtering process on a decoded image acquired by adding a prediction image and a difference image, wherein the prediction image is generated by using the parameter for prediction signal generation, and the difference image is acquired by decoding the compressed difference image, wherein the variable length decoder variable-length-decodes class identification information for a block in the decoded image, and wherein the filtering processor refers to the class identification information for the block to determine a class for the block, and carries out a filtering process on the block based on the determined class and the filters.Type: ApplicationFiled: October 15, 2014Publication date: February 12, 2015Applicant: Mitsubishi Electric CorporationInventors: Akira MINEZAWA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Yusuke ITANI, Yoshimi MORIYA, Norimichi HIWASA, Shuichi YAMAGISHI, Yoshihisa YAMADA, Yoshiaki KATO, Kohtaro ASAI, Tokumichi MURAKAMI
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Publication number: 20150023420Abstract: A loop filter unit 11 carries out a class classification of a local decoded image generated by an adding unit 9 into one class for each coding block having a largest size determined by an encoding controlling unit 2 and also designs a filter that compensates for a distortion piggybacked for each local decoded image belonging to each class, and also carries out a filtering process on the above-mentioned local decoded image by using the filter. A variable length encoding unit 13 encodes, as filter parameters, the filter designed by the loop filter unit 11 and used for the local decoded image belonging to each class, and a class number of each largest coding block.Type: ApplicationFiled: January 9, 2013Publication date: January 22, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Akira Minezawa, Kazuo Sugimoto, Kazuyuki Miyazawa, Yusuke Itani, Ryoji Hattori, Yoshimi Moriya, Norimichi Hiwasa, Shunichi Sekiguchi, Tokumichi Murakami
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Publication number: 20140247875Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.Type: ApplicationFiled: October 10, 2012Publication date: September 4, 2014Inventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
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Publication number: 20140247876Abstract: A tile partitioning unit 1 that partitions an inputted image into tiles each of which is a rectangular region having a specified size and outputs the tiles is disposed, and a block partitioning unit 10 of a partition video encoding unit 3 partitions a tile outputted from the tile partitioning unit 1 into coding blocks each having a predetermined size and also partitions each of the coding blocks hierarchically until the number of hierarchical layers reaches an upper limit on the number of hierarchical layers which is determined by an encoding controlling unit 2.Type: ApplicationFiled: September 10, 2012Publication date: September 4, 2014Applicant: Mitsubishi Electric CorporationInventors: Yoshimi Moriya, Ryoji Hattori, Yusuke Itani, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa
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Publication number: 20120093427Abstract: A quantizing matrix selecting part 3 for calculating the average and variance of brightness values in a prediction image created by a motion-compensated prediction unit 1, and selecting a quantizing matrix corresponding to the average and variance of brightness values in the prediction image from among a plurality of quantizing matrices which are prepared in advance is disposed, and a quantizing part 6 quantizes orthogonal transformation coefficients outputted from an orthogonal transformation part 5 with reference to the quantizing matrix selected by the quantizing matrix selecting part 3.Type: ApplicationFiled: May 25, 2010Publication date: April 19, 2012Inventors: Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Akira Minezawa, Yoshimi Moriya, Norimichi Hiwasa, Shuichi Yamagishi, Yoshihisa Yamada, Yoshiaki Kato, Kohtaro Asai, Tokumichi Murakami
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Publication number: 20120087595Abstract: A loop filter 6 includes a region classifying unit 12 for extracting a feature quantity of each of the regions which construct a local decoded image to classify each of the regions into the class to which the region belongs according to the feature quantity, and a filter designing and processing unit 13 for, for each class to which one or more regions, among the regions which construct the local decoded image, belong, generating a Wiener filter which minimizes an error occurring between an inputted image and the local decoded image in each of the one or more regions belonging to the class to compensate for a distortion superimposed onto the one or more regions by using the Wiener filter.Type: ApplicationFiled: May 25, 2010Publication date: April 12, 2012Applicant: Mitsubishi Electric CorporationInventors: Akira Minezawa, Shunichi Sekiguchi, Kazuo Sugimoto, Yusuke Itani, Yoshimi Moriya, Norimichi Hiwasa, Shuichi Yamagishi, Yoshihisa Yamada, Yoshiaki Kato, Kohtaro Asai, Tokumichi Murakami