Patents by Inventor Kenichiro Hosokawa

Kenichiro Hosokawa 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: 20230156170
    Abstract: The present technology relates to an image processing apparatus and method and a program that enable natural representation of light in an image in accordance with a viewpoint. The image processing apparatus calculates information indicating a change in a light source region between an input image and a viewpoint-converted image that is obtained by performing viewpoint conversion on the input image on the basis of a specified viewpoint, and causes a change in representation of light in the viewpoint-converted image on the basis of the calculated information indicating a change in the light source region. The present technology can be applied to an image display system that generates a pseudo stereoscopic image with motion parallax from one image.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 18, 2023
    Inventor: KENICHIRO HOSOKAWA
  • Patent number: 11451833
    Abstract: The present technology relates to an encoding device, an encoding method, a decoding device, and a decoding method that make it possible to accurately restore an image. The encoding device generates a filter image by performing, on a decoded image locally decoded, filter processing of applying a prediction equation including a second-order or higher higher-order term and performing a product-sum calculation of predetermined tap coefficients and pixels of the decoded image. Moreover, the encoding device encodes an original image by using the filter image. The decoding device decodes coded data included in an encoded bit stream by using a filter image, to generate a decoded image. Moreover, the decoding device generates the filter image by performing, on the decoded image, filter processing of applying a prediction equation. The present technology can be applied to a case where encoding and decoding of an image are performed.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 20, 2022
    Assignee: SONY CORPORATION
    Inventors: Takuro Kawai, Kenichiro Hosokawa, Takafumi Morifuji, Masaru Ikeda, Kenji Kondo, Takahiro Nagano
  • Publication number: 20220076370
    Abstract: The image processing control apparatus 20 acquires the processing performance of the image processing apparatuses 30-1 to 30-n, and causes the image processing apparatuses 30-1 to 30-n to process test images appropriate to their own processing performance. Furthermore, the image processing control apparatus 20 evaluates the image qualities of the processed test images, and selects, for each image processing to be performed on an input image, an image processing apparatus that generates a processed image with good image quality on the basis of the processing performance and image quality evaluation results of the image processing apparatuses 30-1 to 30-n. Thus, the image processing control apparatus 20 sets an optimum processing flow, and controls the image processing apparatuses on the basis of the optimum processing flow. Therefore, it is possible to allot a portion of image processing to each of a plurality of image processing apparatuses so that an output image with good image quality can be obtained.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 10, 2022
    Inventors: TAKURO KAWAI, KENICHIRO HOSOKAWA, YOSHIYUKI AKIYAMA, SHUICHI TAKAHASHI, TAKAFUMI MORIFUJI
  • Patent number: 11259018
    Abstract: The encoding apparatus encodes an input image by a non-reversible encoding method and transmits identification information for identifying match components that are, from among a plurality of texture components registered in a database, texture components that match with the input image and encoded data obtained by encoding the input image. The decoding apparatus receives the encoded data and the identification information, decodes the encoded data into a decoded image, and synthesizes the texture component as the match component identified by the identification information from among a plurality of texture components registered in a database and the decoded image. The present technology can be applied, for example, a codec or the like by which an image is encoded and decoded.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: February 22, 2022
    Assignee: SONY CORPORATION
    Inventors: Keisuke Chida, Takahiro Nagano, Kenichiro Hosokawa, Takuro Kawai, Ohji Nakagami
  • Publication number: 20210377523
    Abstract: The present technology relates to an encoding device, an encoding method, a decoding device, and a decoding method that enable improvement of image quality. The encoding device performs, on a decoded image that is locally decoded, a filtering process of applying a direct current (DC) prediction formula to generate a filtered image, the DC prediction formula being a prediction formula that includes a DC term and performs product-sum operation of a prescribed tap coefficient and a pixel of the decoded image. Moreover, the encoding device encodes an original image by using the filtered image. The decoding device decodes coded data included in an encoded bit stream by using the filtered image to generate a decoded image. Moreover, the decoding device performs a filtering process of applying the DC prediction formula to the decoded image, to generate the filtered image. The present technology can be applied to a case of encoding and decoding of an image.
    Type: Application
    Filed: December 13, 2018
    Publication date: December 2, 2021
    Inventors: TAKURO KAWAI, KENICHIRO HOSOKAWA, TAKAFUMI MORIFUJI, MASARU IKEDA, TAKAHIRO NAGANO
  • Patent number: 11190808
    Abstract: There is provided an image processing apparatus and an image processing method in which S/N can be improved. A class tap selection unit configures a class tap by selecting a pixel that is a class tap used in class classification of classifying a pixel to be processed of a first image obtained by adding a residual error of prediction encoding and a prediction image together, into any one class of a plurality of classes, from the first image. A class classification unit performs the class classification of the pixel to be processed by using the class tap, and a filter processing unit performs filter processing corresponding to class of the pixel to be processed, with respect to the first image, to generate a second image used in prediction of the prediction image. The class tap selection unit updates a tap structure of the class tap to a selected tap structure.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 30, 2021
    Assignee: SONY CORPORATION
    Inventors: Takuro Kawai, Kenichiro Hosokawa, Ohji Nakagami, Masaru Ikeda
  • Publication number: 20210297687
    Abstract: There is provided an encoding apparatus, an encoding method, a decoding apparatus, and a decoding method that can significantly improve S/N of an image. A classification unit classifies a target pixel of a first image, which is obtained by adding a residual of prediction encoding and a predicted image, into one of a plurality of classes, and a filter processing unit applies a filtering process corresponding to the class of the target pixel to the first image to generate a second image used to predict the predicted image. The classification is performed by using previous-stage filter related information regarding a previous-stage filtering process executed in a previous stage of the filtering process of the filter processing unit. The present technique can be applied to, for example, an encoding apparatus or a decoding apparatus of an image.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 23, 2021
    Applicant: SONY CORPORATION
    Inventors: Takuro KAWAI, Kenichiro HOSOKAWA, Ohji NAKAGAMI, Masaru IKEDA
  • Publication number: 20210266535
    Abstract: The present technology relates to a data processing apparatus and a data processing method that make it possible to perform a filter process having a high degree of freedom. A coefficient conversion section converts a first filter coefficient into a second filter coefficient different from the first filter coefficient. A filter section performs a filter process using the second filter coefficient. The present technology can be applied to a filter and so forth by which a filter process, for example, of an image or sound is performed.
    Type: Application
    Filed: March 28, 2019
    Publication date: August 26, 2021
    Inventors: TAKURO KAWAI, KENICHIRO HOSOKAWA, KEISUKE CHIDA, TAKAHIRO NAGANO
  • Patent number: 11062466
    Abstract: The present disclosure relates to an apparatus and a method for information processing enabling alignment between imaged images to be more accurately performed. With respect to a detection result of a correspondence point between an imaged image including a pattern irradiated for alignment with other imaged image, and the other imaged image including the pattern, an evaluation value with which an occurrence rate of an error in the alignment when the imaged image and the other imaged image are composed with each other is evaluated is calculated; and an irradiated position of the pattern is updated on the basis of the evaluation value calculated. The present disclosure, for example, can be applied to an information processing apparatus, an irradiation device, an imaging apparatus, an irradiation imaging apparatus, a controller, an imaging system or the like.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 13, 2021
    Assignee: SONY CORPORATION
    Inventors: Takuro Kawai, Kenichiro Hosokawa, Koji Nishida, Keisuke Chida
  • Publication number: 20210150723
    Abstract: There is provided an image processing device, an image processing method, and a program that make it possible to swiftly perform segmentation of video images. The image processing device according to an aspect of the present technology sets superpixels for frames included in a video image. The superpixels are regions including a plurality of pixels. Further, as information regarding each of the superpixels in a predetermined frame, the image processing device inherits and sets information regarding a corresponding one of the superpixels in a frame earlier than the predetermined frame. The present technology is applicable to various kinds of equipment for processing video images.
    Type: Application
    Filed: May 9, 2019
    Publication date: May 20, 2021
    Applicant: SONY CORPORATION
    Inventors: Koji NISHIDA, Kenichiro HOSOKAWA, Takuro KAWAI
  • Publication number: 20200382812
    Abstract: The present technology relates to an encoding device, an encoding method, a decoding device, and a decoding method that make it possible to accurately restore an image. The encoding device generates a filter image by performing, on a decoded image locally decoded, filter processing of applying a prediction equation including a second-order or higher higher-order term and performing a product-sum calculation of predetermined tap coefficients and pixels of the decoded image. Moreover, the encoding device encodes an original image by using the filter image. The decoding device decodes coded data included in an encoded bit stream by using a filter image, to generate a decoded image. Moreover, the decoding device generates the filter image by performing, on the decoded image, filter processing of applying a prediction equation. The present technology can be applied to a case where encoding and decoding of an image are performed.
    Type: Application
    Filed: November 16, 2018
    Publication date: December 3, 2020
    Inventors: TAKURO KAWAI, KENICHIRO HOSOKAWA, TAKAFUMI MORIFUJI, MASARU IKEDA, KENJI KONDO, TAKAHIRO NAGANO
  • Publication number: 20200288128
    Abstract: The encoding apparatus encodes an input image by a non-reversible encoding method and transmits identification information for identifying match components that are, from among a plurality of texture components registered in a database, texture components that match with the input image and encoded data obtained by encoding the input image. The decoding apparatus receives the encoded data and the identification information, decodes the encoded data into a decoded image, and synthesizes the texture component as the match component identified by the identification information from among a plurality of texture components registered in a database and the decoded image. The present technology can be applied, for example, a codec or the like by which an image is encoded and decoded.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 10, 2020
    Inventors: KEISUKE CHIDA, TAKAHIRO NAGANO, KENICHIRO HOSOKAWA, TAKURO KAWAI, OHJI NAKAGAMI
  • Patent number: 10715804
    Abstract: Provided is an encoding apparatus, an encoding method, a decoding apparatus, and a decoding method by which a transmission efficiency and picture quality can be improved. The encoding apparatus encodes an input image by a non-reversible encoding method and transmits identification information for identifying match components that are, from among a plurality of texture components registered in a database, texture components that match with the input image and encoded data obtained by encoding the input image. The decoding apparatus receives the encoded data and the identification information, decodes the encoded data into a decoded image, and synthesizes the texture component as the match component identified by the identification information from among a plurality of texture components registered in a database and the decoded image. The present technology can be applied, for example, to a codec or the like by which an image is encoded and decoded.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: July 14, 2020
    Assignee: SONY CORPORATION
    Inventors: Keisuke Chida, Takahiro Nagano, Kenichiro Hosokawa, Takuro Kawai, Ohji Nakagami
  • Patent number: 10645384
    Abstract: The present technology relates to an encoding apparatus and an encoding method as well as a decoding apparatus and a decoding method that make it possible to improve the compression efficiency. The encoding apparatus transmits reduction filter information that reduces tap coefficients for individual ones of a plurality of classes determined by learning that uses a student image equivalent to a first image obtained by addition of a residual of prediction encoding and a prediction image and a teacher image equivalent to an original image corresponding to the first image. The decoding apparatus accepts the reduction filter information and performs prediction arithmetic operation using tap coefficients obtained using the reduction filter information to perform a filter process for the first image to generate a second image. The present technology can be applied, for example, an encoding apparatus and a decoding apparatus of an image.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 5, 2020
    Assignee: SONY CORPORATION
    Inventors: Koji Nishida, Takahiro Nagano, Kenichiro Hosokawa, Keisuke Chida, Takuro Kawai, Ohji Nakagami, Masaru Ikeda
  • Publication number: 20200077120
    Abstract: There is provided an image processing apparatus and an image processing method in which S/N can be improved. A class tap selection unit configures a class tap by selecting a pixel that is a class tap used in class classification of classifying a pixel to be processed of a first image obtained by adding a residual error of prediction encoding and a prediction image together, into any one class of a plurality of classes, from the first image. A class classification unit performs the class classification of the pixel to be processed by using the class tap, and a filter processing unit performs filter processing corresponding to class of the pixel to be processed, with respect to the first image, to generate a second image used in prediction of the prediction image. The class tap selection unit updates a tap structure of the class tap to a selected tap structure.
    Type: Application
    Filed: December 28, 2017
    Publication date: March 5, 2020
    Applicant: SONY CORPORATION
    Inventors: Takuro KAWAI, Kenichiro HOSOKAWA, Ohji NAKAGAMI, Masaru IKEDA
  • Publication number: 20200021832
    Abstract: The present technology relates to an encoding apparatus and an encoding method as well as a decoding apparatus and a decoding method that make it possible to appropriately improve the compression efficiency. A prediction tap selection section selects a pixel that becomes a prediction tap from a first image, and a classification section classifies the noticed pixel into one of a plurality of classes. A coefficient acquisition section acquires a tap coefficient of the class of the noticed pixel from tap coefficients, and an arithmetic operation section performs prediction operation using the tap coefficient of the class of the noticed pixel and the prediction tap of the noticed pixel to determine a pixel value of a corresponding pixel, which corresponds to the noticed pixel, of a second image that is used for prediction of a predicted image. Further, reduction coefficients and a transform coefficient are transmitted.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 16, 2020
    Applicant: SONY CORPORATION
    Inventors: Takuro KAWAI, Kenichiro HOSOKAWA, Ohji NAKAGAMI, Masaru IKEDA
  • Publication number: 20200013375
    Abstract: [Subject] To provide an information processing apparatus and an information processing method. [Solving Means] An information processing apparatus includes a feature quantity identification section and a display control section. The feature quantity identification section identifies, on the basis of an input image prior to image processing and an output image that has undergone the image processing, a feature quantity indicating a change made to an image by the image processing. The display control section causes an indicator regarding an effect of the image processing to be displayed on the basis of the feature quantity.
    Type: Application
    Filed: January 23, 2018
    Publication date: January 9, 2020
    Inventors: KOJI NISHIDA, KENICHIRO HOSOKAWA, KEISUKE CHIDA, TAKURO KAWAI
  • Publication number: 20190370986
    Abstract: The present disclosure relates to an apparatus and a method for information processing enabling alignment between imaged images to be more accurately performed. With respect to a detection result of a correspondence point between an imaged image including a pattern irradiated for alignment with other imaged image, and the other imaged image including the pattern, an evaluation value with which an occurrence rate of an error in the alignment when the imaged image and the other imaged image are composed with each other is evaluated is calculated; and an irradiated position of the pattern is updated on the basis of the evaluation value calculated. The present disclosure, for example, can be applied to an information processing apparatus, an irradiation device, an imaging apparatus, an irradiation imaging apparatus, a controller, an imaging system or the like.
    Type: Application
    Filed: February 8, 2018
    Publication date: December 5, 2019
    Inventors: TAKURO KAWAI, KENICHIRO HOSOKAWA, KOJI NISHIDA, KEISUKE CHIDA
  • Publication number: 20190132589
    Abstract: The present technology relates to an encoding apparatus and an encoding method as well as a decoding apparatus and a decoding method by which a transmission efficiency and picture quality can be improved. The encoding apparatus encodes an input image by a non-reversible encoding method and transmits identification information for identifying match components that are, from among a plurality of texture components registered in a database, texture components that match with the input image and encoded data obtained by encoding the input image. The decoding apparatus receives the encoded data and the identification information, decodes the encoded data into a decoded image, and synthesizes the texture component as the match component identified by the identification information from among a plurality of texture components registered in a database and the decoded image. The present technology can be applied, for example, a codec or the like by which an image is encoded and decoded.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 2, 2019
    Inventors: KEISUKE CHIDA, TAKAHIRO NAGANO, KENICHIRO HOSOKAWA, TAKURO KAWAI, OHJI NAKAGAMI
  • Publication number: 20190124327
    Abstract: The present technique relates to an image processing apparatus and an image processing method that can improve the S/N and the compression efficiency. A filtering process is applied to a first image obtained by adding a residual of prediction encoding and a predicted image to generate a second image used for prediction of the predicted image. In the filtering process, pixels as a prediction tap used for prediction computation for obtaining a pixel value of a corresponding pixel of the second image corresponding to a pixel to be processed of the first image are selected from the first image. The pixel to be processed is classified into one of a plurality of classes. Tap coefficients of the class of the pixel to be processed and the prediction tap of the pixel to be processed are used to perform the prediction computation to obtain the pixel value of the corresponding pixel.
    Type: Application
    Filed: April 18, 2017
    Publication date: April 25, 2019
    Applicant: SONY CORPORATION
    Inventors: Takuro KAWAI, Kenichiro HOSOKAWA, Keisuke CHIDA, Ohji NAKAGAMI, Takahiro NAGANO