Patents by Inventor Takefumi Nagumo
Takefumi Nagumo 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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Publication number: 20240134019Abstract: The present disclosure relates to an information processing device and an information processing method achieving suppression of a drop of coding efficiency. A depth value that wraps around a predetermined value range is quantized by using a predetermined quantization step. A difference value between the quantized depth value and a predicted value of the depth value is derived. A turnback value of the depth value is quantized by using the quantization step. The derived difference value is appropriately corrected by using the quantized turnback value. The appropriately corrected difference value is coded. For example, the present disclosure is applicable to an information processing device, an image processing device, electronic equipment, an information processing method, an image processing method, a program, or others.Type: ApplicationFiled: January 13, 2022Publication date: April 25, 2024Inventors: Takuya Kitamura, Takefumi Nagumo
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Patent number: 11956526Abstract: The present disclosure relates to an image capturing element, an image capturing device, and a method that are capable of preventing a reduction in communication safety. By capturing an image of a subject, and generating a captured image, a predetermined feature amount to be output to the outside is extracted from the generated captured image. For example, an image capturing section that captures an image of a subject to generate a captured image, and a feature amount extracting section that extracts, from the captured image generated by the image capturing section, a predetermined feature amount to be output to the outside, are packaged and are formed in respective substrates different from each other. The present disclosure can be applied to, for example, an image capturing element, an image capturing device, an image processing device, a transmission device, or a communication device.Type: GrantFiled: November 21, 2019Date of Patent: April 9, 2024Assignee: SONY GROUP CORPORATIONInventors: Takuya Kitamura, Takefumi Nagumo
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Patent number: 11935212Abstract: The present disclosure relates to an image processing apparatus and method that make it possible to suppress increase of a prediction error. Image data is encoded by a method according to a type of pixel. For example, image data is encoded by a method according to whether the pixel is an image plane phase difference detection pixel or a normal pixel. Further, encoded data of image data is decoded by a method according to a type of pixel. For example, encoded data is decoded by a method according to whether the image is an image plane phase difference detection pixel or a normal pixel. The present technology can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging device, an imaging apparatus, or the like.Type: GrantFiled: November 21, 2019Date of Patent: March 19, 2024Assignee: SONY GROUP CORPORATIONInventors: Toshinori Ihara, Takefumi Nagumo, Makoto Daido
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Patent number: 11930160Abstract: A polarization imaging unit 20 acquires a polarized image including polarization pixels with a plurality of polarization directions. An information compression unit 40 sets reference image information based on polarized image information of reference polarization pixels with at least a plurality of polarization directions in the polarized image and generates difference information between the polarized image information of each of polarization pixels different from the reference polarization pixels in the polarized image and the reference image information. In addition, the information compression unit 40 reduces the amount of information of the difference information generated for each of the polarization pixels with the plurality of polarization directions to generate compressed image information including the reference image information and the difference information with the reduced amount of information.Type: GrantFiled: June 6, 2019Date of Patent: March 12, 2024Assignee: SONY CORPORATIONInventors: Yuhi Kondo, Yasutaka Hirasawa, Takefumi Nagumo, Toshinori Ihara, Teppei Kurita, Legong Sun
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Publication number: 20240048779Abstract: The present disclosure relates to an information processing device and an information processing method capable of achieving code quantity control while securely retaining some of pixel values of sensing data. Whether or not each of pixel values of sensing data is a reserved word that is a predetermined value determined beforehand is determined. A flag map that indicates a position of a reserved word pixel that is a pixel having the reserved word as a pixel value and non-reserved word data that includes a pixel value of a non-reserved word pixel that is a pixel other than the reserved word pixel are generated. The generated flag map is subjected to lossless coding to generate a flag stream. The generated non-reserved word data is coded to generate a pixel stream. For example, the present disclosure is applicable to an information processing device, an image processing device, an electronic apparatus, an information processing method, an image processing method, a program, or the like.Type: ApplicationFiled: December 24, 2021Publication date: February 8, 2024Inventors: Takefumi Nagumo, Takuya Kitamura, Sinsuke Hishinuma
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Patent number: 11765468Abstract: The present disclosure relates to an image processing device and a method thereof, an imaging element, and an imaging device in which a signal value deviation generated through encoding and decoding of an amplified signal group can be restrained. Adaptive processing is executed on an image in which signal amplification has been executed, and the resultant image is encoded. For example, an offset value that is randomly set within a value range that depends on a gain value of the signal amplification executed on the image is added to each pixel value of the image, and then, the resultant image is encoded. The present disclosure is applicable to an image processing device, an image encoding device, an image decoding device, an imaging element, or an imaging device, for example.Type: GrantFiled: February 15, 2019Date of Patent: September 19, 2023Assignee: SONY CORPORATIONInventors: Toshinori Ihara, Takefumi Nagumo
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Patent number: 11758298Abstract: The present disclosure relates to image processing apparatus and method that can suppress the increase in the load of processing multi-wavelength data. A subject is imaged to generate multi-wavelength data that is image data including four or more wavelength components, the generated multi-wavelength data is encoded to generate encoded data of the multi-wavelength data, and the generated encoded data is transmitted. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.Type: GrantFiled: May 17, 2019Date of Patent: September 12, 2023Assignee: SONY CORPORATIONInventors: Takefumi Nagumo, Toshinori Ihara, Takuya Kitamura
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Publication number: 20230095186Abstract: An information processing device (10, 10A) includes a band requesting unit (162, 162A), an adjusting unit (164, 164A), and a transmitting unit (140). The band requesting unit (162, 162A) requests, according to a bandwidth necessary for transmitting information including a moving image, a use reservation of the bandwidth. The adjusting unit (164, 164A) adjusts, according to a result of the request by the band requesting unit and a reserved bandwidth, an information amount of information to be transmitted. The transmitting unit (140) converts the information with the adjusted information amount into a transmission signal and transmits the transmission signal.Type: ApplicationFiled: March 4, 2021Publication date: March 30, 2023Inventor: TAKEFUMI NAGUMO
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Publication number: 20230066438Abstract: The present disclosure relates to an information processing device and method capable of suppressing an increase in load of processing of sensing data. A bit depth of intermediate data generated from sensing data obtained in a sensor of an indirect time-of-flight (TOF) system is corrected, and the intermediate data with the bit depth corrected is encoded, and coded data is generated. For example, the bit depth of the intermediate data is corrected using a gamma curve that is a predetermined curve indicating input-output characteristics. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, an imaging element, an imaging device, or the like.Type: ApplicationFiled: February 8, 2021Publication date: March 2, 2023Inventors: TAKEFUMI NAGUMO, TAKUYA KITAMURA
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Patent number: 11563477Abstract: The present technology relates to an information processing device and method capable of suppressing lowering in the quality of user experience. An information processing device includes: a wireless communication unit that sends transmission information to another information processing device through wireless communication; and a control unit that controls at least one of the wireless communication performed by the wireless communication unit, encoding of the transmission information, or a processing process on the transmission information on the basis of blockage prediction period information indicating a prediction result on blockage of a communication path to the another information processing device. The present technology can be applied to a content playback system.Type: GrantFiled: January 9, 2020Date of Patent: January 24, 2023Assignee: SONY GROUP CORPORATIONInventors: Kosuke Aio, Sawako Kiriyama, Yuichi Hasegawa, Takefumi Nagumo, Asako Doi
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Publication number: 20220103224Abstract: The present technology relates to an information processing device and method capable of suppressing lowering in the quality of user experience. An information processing device includes: a wireless communication unit that sends transmission information to another information processing device through wireless communication; and a control unit that controls at least one of the wireless communication performed by the wireless communication unit, encoding of the transmission information, or a processing process on the transmission information on the basis of blockage prediction period information indicating a prediction result on blockage of a communication path to the another information processing device. The present technology can be applied to a content playback system.Type: ApplicationFiled: January 9, 2020Publication date: March 31, 2022Inventors: KOSUKE AIO, SAWAKO KIRIYAMA, YUICHI HASEGAWA, TAKEFUMI NAGUMO, ASAKO DOI
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Patent number: 11272180Abstract: The present disclosure relates to an image processing apparatus and method that can keep reduction in coding efficiency to a minimum. A scaling list is set that has values appropriate to a current block size for the current block to be quantized in an image to be coded, quantization is performed using the set scaling list, and coded data is generated by coding an acquired quantization coefficient. The present disclosure is applicable, for example, to an image processing apparatus, an image coding apparatus, an image decoding apparatus, and so on.Type: GrantFiled: June 20, 2017Date of Patent: March 8, 2022Assignee: SONY CORPORATIONInventors: Takefumi Nagumo, Hironari Sakurai
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Publication number: 20220030159Abstract: The present disclosure relates to an image capturing element, an image capturing device, and a method that are capable of preventing a reduction in communication safety. By capturing an image of a subject, and generating a captured image, a predetermined feature amount to be output to the outside is extracted from the generated captured image. For example, an image capturing section that captures an image of a subject to generate a captured image, and a feature amount extracting section that extracts, from the captured image generated by the image capturing section, a predetermined feature amount to be output to the outside, are packaged and are formed in respective substrates different from each other. The present disclosure can be applied to, for example, an image capturing element, an image capturing device, an image processing device, a transmission device, or a communication device.Type: ApplicationFiled: November 21, 2019Publication date: January 27, 2022Inventors: TAKUYA KITAMURA, TAKEFUMI NAGUMO
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Publication number: 20220028040Abstract: The present disclosure relates to an image processing apparatus and method that make it possible to suppress increase of a prediction error. Image data is encoded by a method according to a type of pixel. For example, image data is encoded by a method according to whether the pixel is an image plane phase difference detection pixel or a normal pixel. Further, encoded data of image data is decoded by a method according to a type of pixel. For example, encoded data is decoded by a method according to whether the image is an image plane phase difference detection pixel or a normal pixel. The present technology can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging device, an imaging apparatus, or the like.Type: ApplicationFiled: November 21, 2019Publication date: January 27, 2022Inventors: TOSHINORI IHARA, TAKEFUMI NAGUMO, MAKOTO DAIDO
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Patent number: 11223824Abstract: A reference direction determination unit 44 detects, using an input image, a scene change, a flash scene, or a monotonous luminance variation section. In a case where an encoding target image is the scene change or flash scene, the reference direction determination unit 44 determines its mode as a fixed reference direction mode in which a reference direction in a screen is fixed uniformly. Further, in a case where the encoding target image is the monotonous luminance variation section, that is, a section where luminance of an entire screen monotonously increases or monotonously decreases, the reference direction determination unit 44 determines as the fixed reference direction mode in which the reference direction in the screen is fixed uniformly. A motion prediction/compensation unit 42 performs inter prediction processing according to a determination result of the reference direction determination unit 44, thereby enabling efficient encoding while suppressing deterioration of image quality.Type: GrantFiled: October 10, 2018Date of Patent: January 11, 2022Assignees: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Yoshitaka Morigami, Takefumi Nagumo, Hironari Sakurai, Takashi Fukuyama
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Publication number: 20210375003Abstract: The present disclosure relates to an image processing apparatus and an image processing method capable of reducing an increase in a load imposed by processing of multispectral image data. Multispectral image data including components in four or more wavelength bands is simple-coded at a fixed compression rate. Alternatively, coded data generated by simple coding at a fixed compression rate for multispectral image data including components in four or more wavelength bands is simple-decoded. For example, the present disclosure is applicable to an image processing apparatus, an image coding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.Type: ApplicationFiled: May 17, 2019Publication date: December 2, 2021Inventors: TOSHINORI IHARA, TAKUYA KITAMURA, TAKEFUMI NAGUMO
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Publication number: 20210266478Abstract: The present disclosure relates to image processing apparatus and method that can suppress the increase in the load of processing multi-wavelength data. A subject is imaged to generate multi-wavelength data that is image data including four or more wavelength components, the generated multi-wavelength data is encoded to generate encoded data of the multi-wavelength data, and the generated encoded data is transmitted. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.Type: ApplicationFiled: May 17, 2019Publication date: August 26, 2021Inventors: TAKEFUMI NAGUMO, TOSHINORI IHARA, TAKUYA KITAMURA
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Publication number: 20210243437Abstract: A polarization imaging unit 20 acquires a polarized image including polarization pixels with a plurality of polarization directions. An information compression unit 40 sets reference image information based on polarized image information of reference polarization pixels with at least a plurality of polarization directions in the polarized image and generates difference information between the polarized image information of each of polarization pixels different from the reference polarization pixels in the polarized image and the reference image information. In addition, the information compression unit 40 reduces the amount of information of the difference information generated for each of the polarization pixels with the plurality of polarization directions to generate compressed image information including the reference image information and the difference information with the reduced amount of information.Type: ApplicationFiled: June 6, 2019Publication date: August 5, 2021Applicant: SONY CORPORATIONInventors: Yuhi KONDO, Yasutaka HIRASAWA, Takefumi NAGUMO, Toshinori IHARA, Teppei KURITA, Legong SUN
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Publication number: 20210185305Abstract: A reference direction determination unit 44 detects, using an input image, a scene change, a flash scene, or a monotonous luminance variation section. In a case where an encoding target image is the scene change or flash scene, the reference direction determination unit 44 determines its mode as a fixed reference direction mode in which a reference direction in a screen is fixed uniformly. Further, in a case where the encoding target image is the monotonous luminance variation section, that is, a section where luminance of an entire screen monotonously increases or monotonously decreases, the reference direction determination unit 44 determines as the fixed reference direction mode in which the reference direction in the screen is fixed uniformly. A motion prediction/compensation unit 42 performs inter prediction processing according to a determination result of the reference direction determination unit 44, thereby enabling efficient encoding while suppressing deterioration of image quality.Type: ApplicationFiled: October 10, 2018Publication date: June 17, 2021Applicants: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Yoshitaka MORIGAMI, Takefumi NAGUMO, Hironari SAKURAI, Takashi FUKUYAMA
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Patent number: 10893269Abstract: There is provided an image processing device and method capable of suppressing a decrease in subjective image quality. A size of a current block for a prediction process is set according to a size of a peripheral block situated on a periphery of the current block. The prediction process is to generate a predicted image of an image to be encoded. An intra prediction process is performed on the current block that has been set and the predicted image is generated. The image to be encoded is encoded using the predicted image that has been generated. The present disclosure can be applied to, for example, an image processing device, an image encoding device, or an image decoding device.Type: GrantFiled: May 25, 2017Date of Patent: January 12, 2021Assignee: SONY CORPORATIONInventors: Yoshitaka Morigami, Shuo Lu, Takefumi Nagumo