Patents by Inventor Shun Kaizu
Shun Kaizu 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: 9036060Abstract: Provided is an imaging device including an image sensor for outputting a high-sensitivity pixel signal from a long-time exposure pixel and a low-sensitivity pixel signal from a short-time exposure pixel; and a blooming correction processing unit for receiving the output pixel signal from the image sensor and executing blooming correction for the pixel signal. The blooming correction processing unit executes pixel value correction of the input pixel from the image sensor according to a difference between or a ratio of an input pixel value from the image sensor and an ideal pixel value not affected by blooming.Type: GrantFiled: July 27, 2012Date of Patent: May 19, 2015Assignee: Sony CorporationInventors: Shun Kaizu, Kensei Jo, Tomoo Mitsunaga, Hirotaka Shinozaki
-
Publication number: 20150029358Abstract: There are provided an apparatus and a method which generate an RGB image having less color noise and fewer false colors by inputting an RGBW image. The apparatus has an image sensor having an RGBW array, and an image processing unit which performs image processing by inputting a sensor image formed of an RGBW pixel signal output from the image sensor. The image sensor has a periodic array of a unit composition formed of each RGBW pixel, and has an array in which composition ratios of each RGB pixel within the unit composition are adapted to be the same as each other. The image processing unit converts a pixel array of the sensor image formed of the RGBW pixel signal, and performs at least either array conversion processing for generating an RGB array image or signal processing for generating each RGB image signal in which all RGB pixel values are set for each pixel position of the sensor image.Type: ApplicationFiled: December 26, 2012Publication date: January 29, 2015Applicant: Sony CorporationInventor: Shun Kaizu
-
Publication number: 20140368697Abstract: Long and short exposure time pixel information are input to pixel information. A long exposure time image set with the pixel values assuming all of the pixels have been exposed for a long time and a short exposure time image set with the pixel values assuming all of the pixels have been exposed for a short time are generated. A point spread function corresponding to the long exposure time image is computed as a long exposure time image PSF. A corrected image is generated using the short exposure time image, the long exposure time image, and the long exposure time image PSF. The corrected image is generated as a wide dynamic range image utilizing the pixel information for the long and short exposure time image. Utilizing the pixel information for the short exposure time image with little blurring, makes the corrected image a high quality corrected image with little blurring.Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Applicant: Sony CorporationInventors: Kensei Jo, Shun Kaizu, Tomoo Mitsunaga
-
Publication number: 20140347449Abstract: An imaging apparatus includes: a first imaging device configured to perform photoelectric conversion on subject light input through a first filter to output a first image signal, the first filter preventing light in a predetermined wavelength band of wavelengths longer than that of visible light from being transmitted; a second imaging device arranged at a different position from the first imaging device and configured to perform photoelectric conversion on subject light containing a wavelength component of the light in the predetermined wavelength band to output a second image signal; a correlation detection unit configured to detect a correlation between the first and second image signals; a luminance signal generation unit configured to generate a luminance signal; a color signal generation unit configured to generate a color signal; and a three-dimensional image generation unit configured to generate a three-dimensional image by the correlation, the luminance signal, and the color signal.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Applicant: Sony CorporationInventors: Akihisa YAMAZAKI, Tomoo MITSUNAGA, Shun KAIZU, Shin YOSHIMURA
-
Publication number: 20140340550Abstract: An image processing apparatus includes an intermediate image generating unit configured to input an image which has been shot with differing exposure times set by region, generates a plurality of exposure pattern images corresponding to differing exposure times based on the input image, and generates a plurality of timing images which are difference images of the plurality of exposure pattern images; and a distortion correction processing unit configured to generate a corrected image equivalent to an exposure processing image at a predetermined exposure time by synthesizing processing of the plurality of timing images.Type: ApplicationFiled: July 9, 2014Publication date: November 20, 2014Applicant: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga
-
Publication number: 20140320705Abstract: Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Inventors: Shun KAIZU, Yoshikuni NOMURA
-
Publication number: 20140313400Abstract: There is provided an image processing apparatus including an HDR (High Dynamic Range) processing unit inputting images picked up while exposure control that changes an exposure time is being carried out with a predetermined spatial period and a predetermined temporal period on pixels that compose an image sensor, and carrying out image processing. The HDR processing unit generates a first combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process using a plurality of consecutively picked-up images, generates a second combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process that uses a single picked-up image, and generates an HDR image by executing a pixel value blending process on the first combined image and the second combined image in accordance with a blending ratio calculated in accordance with movement detection information.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Applicant: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga, Yasushi Saito, Masanori Kasai
-
Patent number: 8848063Abstract: Long and short exposure time pixel information are input to pixel information. A long exposure time image set with the pixel values assuming all of the pixels have been exposed for a long time and a short exposure time image set with the pixel values assuming all of the pixels have been exposed for a short time are generated. A point spread function corresponding to the long exposure time image is computed as a long exposure time image PSF. A corrected image is generated using the short exposure time image, the long exposure time image, and the long exposure time image PSF. The corrected image is generated as a wide dynamic range image utilizing the pixel information for the long and short exposure time image. Utilizing the pixel information for the short exposure time image with little blurring, makes the corrected image a high quality corrected image with little blurring.Type: GrantFiled: April 23, 2012Date of Patent: September 30, 2014Assignee: Sony CorporationInventors: Kensei Jo, Shun Kaizu, Tomoo Mitsunaga
-
Patent number: 8804012Abstract: Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel.Type: GrantFiled: May 9, 2011Date of Patent: August 12, 2014Assignee: Sony CorporationInventors: Shun Kaizu, Yoshikuni Nomura
-
Patent number: 8803985Abstract: There is provided an image processing apparatus including an HDR (High Dynamic Range) processing unit inputting images picked up while exposure control that changes an exposure time is being carried out with a predetermined spatial period and a predetermined temporal period on pixels that compose an image sensor, and carrying out image processing. The HDR processing unit generates a first combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process using a plurality of consecutively picked-up images, generates a second combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process that uses a single picked-up image, and generates an HDR image by executing a pixel value blending process on the first combined image and the second combined image in accordance with a blending ratio calculated in accordance with movement detection information.Type: GrantFiled: April 27, 2012Date of Patent: August 12, 2014Assignee: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga, Yasushi Saito, Masanori Kasai
-
Patent number: 8797433Abstract: An image processing apparatus includes an intermediate image generating unit configured to input an image which has been shot with differing exposure times set by region, generates a plurality of exposure pattern images corresponding to differing exposure times based on the input image, and generates a plurality of timing images which are difference images of the plurality of exposure pattern images; and a distortion correction processing unit configured to generate a corrected image equivalent to an exposure processing image at a predetermined exposure time by synthesizing processing of the plurality of timing images.Type: GrantFiled: February 17, 2012Date of Patent: August 5, 2014Assignee: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga
-
Publication number: 20130329128Abstract: An apparatus and a method are provided, which realize image pickup processing in which setting of an exposure time is performed in units of regions in an image pickup apparatus. An electronic shutter control unit that controls an exposure start time of an image pickup device by an electronic shutter operation and a mechanical shutter control unit that controls an exposure end time of the image pickup device by a mechanical shutter operation. The electronic shutter control unit calculates the exposure start time in units of image regions based on an exposure time individually set in units of image regions, and an operation time of the mechanical shutter in units of image regions, and controls the electronic shutter to operate at the calculated exposure start time in units of image regions.Type: ApplicationFiled: January 26, 2012Publication date: December 12, 2013Applicant: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga
-
Patent number: 8508611Abstract: Provided is an image processing apparatus including: an image combination unit which generates combined images by combining photographed images having different exposure times; and a motion area detection unit which performs a comparison process on a plurality of the combined images generated by the image combination unit to acquire a pixel value difference and which performs a motion area detection process of comparing the pixel value difference with a predetermined threshold value and determining a pixel area, of which the pixel value difference is equal to or larger than the threshold value, to be a motion area where motion of a subject is estimated to have occurred.Type: GrantFiled: September 9, 2010Date of Patent: August 13, 2013Assignee: Sony CorporationInventors: Masanori Kasai, Satoru Takeuchi, Shun Kaizu
-
Publication number: 20130076939Abstract: Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel.Type: ApplicationFiled: May 9, 2011Publication date: March 28, 2013Inventors: Shun Kaizu, Yoshikuni Nomura
-
Patent number: 8384805Abstract: An image processing device includes an image correction unit which receives a synthesized image and pseudo color pixel information indicating a pseudo color pixel position included in the synthesized image and executes pixel value correction. The image correction unit selects non-pseudo color pixels as reference pixels from a reference region set in a surrounding region of the pixel to be corrected, sets a similarity weight coefficient in which a large weight is set as a pixel value of the reference pixel that is close to a pixel value of the pixel to be corrected and a pixel position weight coefficient in which a large weight is set as the pixel value of the reference pixel that is near a pixel position of the pixel to be corrected, with respect to the reference pixels, and determines a correction pixel value of the pixel to be corrected by a weighted summation process.Type: GrantFiled: September 10, 2010Date of Patent: February 26, 2013Assignee: Sony CorporationInventors: Teppei Kurita, Yoshikuni Nomura, Shun Kaizu, Satoru Takeuchi, Masanori Kasai
-
Publication number: 20130033616Abstract: Provided is an imaging device including an image sensor for outputting a high-sensitivity pixel signal from a long-time exposure pixel and a low-sensitivity pixel signal from a short-time exposure pixel; and a blooming correction processing unit for receiving the output pixel signal from the image sensor and executing blooming correction for the pixel signal. The blooming correction processing unit executes pixel value correction of the input pixel from the image sensor according to a difference between or a ratio of an input pixel value from the image sensor and an ideal pixel value not affected by blooming.Type: ApplicationFiled: July 27, 2012Publication date: February 7, 2013Applicant: Sony CorporationInventors: Shun Kaizu, Kensei Jo, Tomoo Mitsunaga, Hirotaka Shinozaki
-
Publication number: 20120314124Abstract: There is provided an image pickup apparatus including: a control unit generating exposure time control data in which an exposure time of an image sensor is set in pixel region units; and an image sensor inputting the exposure time control data and carrying out image acquisition based on exposure time control in the pixel region units. The control unit successively and sequentially generates the exposure time control data in region units based on luminance information in the pixel region units that form part of a preceding picked-up image and outputs the exposure time control data to the image sensor. The image sensor inputs the exposure time control data in the region units from the control unit and successively and sequentially uses the inputted exposure time control data to carry out the image acquisition based on the exposure time control in the pixel region units.Type: ApplicationFiled: June 4, 2012Publication date: December 13, 2012Applicant: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga, Kensei Jo, Teppei Kurita
-
Publication number: 20120287294Abstract: There is provided an image processing apparatus including an HDR (High Dynamic Range) processing unit inputting images picked up while exposure control that changes an exposure time is being carried out with a predetermined spatial period and a predetermined temporal period on pixels that compose an image sensor, and carrying out image processing. The HDR processing unit generates a first combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process using a plurality of consecutively picked-up images, generates a second combined image by combining pixel values of a plurality of images with different sensitivities generated by an interpolation process that uses a single picked-up image, and generates an HDR image by executing a pixel value blending process on the first combined image and the second combined image in accordance with a blending ratio calculated in accordance with movement detection information.Type: ApplicationFiled: April 27, 2012Publication date: November 15, 2012Applicant: Sony CorporationInventors: Shun Kaizu, Tomoo Mitsunaga, Yasushi Saito, Masanori Kasai
-
Publication number: 20120281111Abstract: Long and short exposure time pixel information are input to pixel information. A long exposure time image set with the pixel values assuming all of the pixels have been exposed for a long time and a short exposure time image set with the pixel values assuming all of the pixels have been exposed for a short time are generated. A point spread function corresponding to the long exposure time image is computed as a long exposure time image PSF. A corrected image is generated using the short exposure time image, the long exposure time image, and the long exposure time image PSF. The corrected image is generated as a wide dynamic range image utilizing the pixel information for the long and short exposure time image. Utilizing the pixel information for the short exposure time image with little blurring, makes the corrected image a high quality corrected image with little blurring.Type: ApplicationFiled: April 23, 2012Publication date: November 8, 2012Applicant: Sony CorporationInventors: Kensei Jo, Shun Kaizu, Tomoo Mitsunaga
-
Publication number: 20120281133Abstract: A moving subject detection map is generated by performing moving subject region determination based on input image information from an image capture portion, and is used to set an exposure pattern for a moving subject detected pixel region. The exposure pattern is cyclically arranged with multiple different exposure times. The exposure time for a stationary subject region is set according to the brightness of the subject. Regarding an image captured based on the exposure time control, an output image is generated by computing pixel values for a moving subject region, using pixel value combination processing that utilizes the pixel values of pixels with a plurality of different exposure times being set, and by computing pixel values for the stationary subject region by multiplying a gain according to the exposure time. This achieves the acquisition of a dynamic range image while keeping deterioration of the resolution to a minimum.Type: ApplicationFiled: April 16, 2012Publication date: November 8, 2012Applicant: Sony CorporationInventors: Teppei Kurita, Tomoo Mitsunaga, Kensei Jo, Shun Kaizu