Patents by Inventor Junya Arakawa
Junya Arakawa 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: 20120218284Abstract: Disclosed is a method (160) for identifying potential tamper in a candidate document having content affected by noise. A candidate content value for each of a plurality of sub-regions of the candidate document and an original content value for each of a plurality of sub-regions of a corresponding original document are determined. The content values are desirably determined based on at least one characteristic of the content in the corresponding sub-region. The candidate content values (330) are associated with the corresponding original content values and a distribution of the candidate content values based on the corresponding original content values is determined. The method characterises (340) the noise in the candidate document by determining an expected content value range based on the spread of a selected part of the distribution of candidate content values. The method can then identify (350) candidate content values outside the expected content value range as potential tamper.Type: ApplicationFiled: February 16, 2012Publication date: August 30, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Neil YAGER, Roger David BUTLER, Junya ARAKAWA
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Patent number: 8186594Abstract: The characteristic variations of a printer largely influence the recognition precision of code information, and the recognition precision of code information appended to printed matter cannot often be guaranteed depending on printers. To solve this problem, a printer forms a predetermined chart, and the image forming characteristics of the printer are detected from the code information recorded on the chart. A generation method of generating code information obtained by encoding information to a regular sequence of a pixel cluster is controlled in accordance with the image forming characteristics.Type: GrantFiled: October 24, 2006Date of Patent: May 29, 2012Assignee: Canon Kabushiki KaishaInventors: Mitsuru Uzawa, Sanae Ikeda, Jun Nagai, Junya Arakawa
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Patent number: 8181108Abstract: In a system that performs object division of a manuscript and adds metadata, a method is provided which can edit the metadata by an intuitive operation when no appropriate metadata is added or when it is desired that the metadata be increased by adding. An image processing device, which divides an manuscript acquired through an input component into a plurality of objects and adds the metadata, has a user interface for editing the metadata of the objects, and switches, after selecting first and second objects, a retouching method of the metadata in accordance with the contents of the respective metadata of the first object and second object.Type: GrantFiled: April 21, 2009Date of Patent: May 15, 2012Assignee: Canon Kabushiki KaishaInventors: Yoichi Kashibuchi, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikata, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Naoki Ito, Junya Arakawa, Shinji Sano
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Publication number: 20110216379Abstract: In an image forming apparatus for making a position deviation correction, a position deviation amount can be accurately calculated by stabilizing the detection result at position deviation detecting and considering an ideal correction amount and an actual correction amount to make the position deviation correction accurately. A forming unit forms a pattern for position deviation detection without making the position correction for less than one pixel by an image position correcting unit, to a pattern formed in the vicinity of a detection region of a detecting unit, and the position deviation amount is calculated by using a value of a position correction which is not made to the pattern for position deviation detection to be formed.Type: ApplicationFiled: January 24, 2011Publication date: September 8, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa
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Publication number: 20110139866Abstract: A falsification detection threshold value for falsification detection is automatically determined. A falsification detection portion (4) performs division into uniform detection units, and calculates, for each of the cells of the detection units, the variation information of differential information on respective regions that are included in the detection units and are divided as described above (S802). It is understood that cells (901), (902) and (903) have values of 8, 170 and 140, respectively. The falsification detection portion (4) uses the variations in the differential information calculated in step S802 to calculate a differential information threshold for determining a falsified region within an image read by scanning (S803). The average value and the standard deviation of a region where falsification is not conducted are relatively small, and the average value and the standard deviation of a region where falsification is conducted are relatively large.Type: ApplicationFiled: December 8, 2010Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa
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Patent number: 7952750Abstract: There is provided an image processing apparatus configured to generate code information represented by a dot array and attach the code information on an image. The image processing apparatus includes a determination unit configured to determine one pattern from among a plurality of patterns wherein locations to attach the code information differ from each other, and an attaching unit configured to attach the code information on a location corresponding to the pattern determined by the determination unit.Type: GrantFiled: December 4, 2007Date of Patent: May 31, 2011Assignee: Canon Kabushiki KaishaInventor: Junya Arakawa
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Patent number: 7889920Abstract: According to the claimed invention, an image processing apparatus is provided, wherein the image processing apparatus comprises a color determiner, adapted to determine a color of image data; a color space determiner, adapted to determine a color space for compressing the image data based on the color determined by the color determiner; and a converter, adapted to convert the image data into data on a plurality of planes that constitute the color space determined by the color space determiner and compressing the data on each plane, wherein the color space determiner determines the color space based on the color determined by the color determiner so that AC components of the image data concentrate on a certain plane of the plurality of planes.Type: GrantFiled: June 18, 2007Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventor: Junya Arakawa
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Publication number: 20100202695Abstract: The subject of the present invention is to provide an apparatus which can improve decoding performance in the decoding processing of an encoded image pattern to reduce a load of the decoding processing. For solving the above problem, an apparatus according to the present invention is an apparatus for decoding an encoded image pattern having a detection pattern, the apparatus comprising a detecting unit configured to detect the detection pattern from an image, a correcting unit configured to correct a density of the encoded image pattern of which a position is specified by the detected detection pattern, based upon a density of the detected detection pattern, and a decoding unit configured to decode the encoded image pattern of which a density has been corrected.Type: ApplicationFiled: January 25, 2010Publication date: August 12, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa
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Publication number: 20100171999Abstract: There are cases in which an effective search index cannot be provided to an image data only by extracting character codes from a character object in PDL data. An image processing apparatus of the present invention obtains image data by rendering PDL data, and extracts a character object from the image data. The image processing apparatus performs character recognition processing on the extracted character object to obtain character code information, and provides metadata including the character code information to the image data.Type: ApplicationFiled: July 1, 2009Publication date: July 8, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Namikata, Tsutomu Sakaue, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Naoki Ito, Yoichi Kashibuchi, Junya Arakawa, Shinji Sano
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Publication number: 20100097656Abstract: An input image is segmented into regions based on attributes of the input image. It is determined whether each segmented region is an illustration region. When it is determined that the segmented region is an illustration region, the color of the determined illustration region is compared with that of a region around the illustration region. When these colors coincide with each other as a result of the comparison, attribute information of the illustration region is changed to that of the region around the illustration region. Print data is generated based on the changed attribute information.Type: ApplicationFiled: April 15, 2009Publication date: April 22, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Reiji Misawa, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikata, Manabu Takebayashi, Osamu Iinuma, Naoki Ito, Yoichi Kashibuchi, Junya Arakawa, Shinji Sano
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Publication number: 20100070854Abstract: In a system that performs object division of a manuscript and adds metadata, a method is provided which can edit the metadata by an intuitive operation when no appropriate metadata is added or when it is desired that the metadata be increased by adding. An image processing device, which divides an manuscript acquired through an input component into a plurality of objects and adds the metadata, has a user interface for editing the metadata of the objects, and switches, after selecting first and second objects, a retouching method of the metadata in accordance with the contents of the respective metadata of the first object and second object.Type: ApplicationFiled: April 21, 2009Publication date: March 18, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Yoichi Kashibuchi, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikata, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Naoki Ito, Junya Arakawa, Shinji Sano
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Publication number: 20090303504Abstract: The objective of the preset invention is to easily determine an optimal method for the use of transparent toner. In order to resolve this problem, an image forming apparatus according to the present invention includes an addition unit for adding, to each of objects that constitute an original document, information indicating either that transparent toner is to be printed for the entire surface of the original document or that transparent toner is to be printed for only part of the original document, a storage unit for storing the object and a generating unit for generating image data by employing the object stored in the storage unit, wherein, based on the information added to the object that is stored in the storage unit, the generating unit controls a number of pixels used for printing the transparent toner.Type: ApplicationFiled: January 30, 2009Publication date: December 10, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Osamu Iinuma, Hiroshi Kaburagi, Tsutomu Sakaue, Manabu Takebayashi, Reiji Misawa, Naoki Ito, Yoichi Kashibuchi, Junya Arakawa, Shinji Sano, Takeshi Namikata
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Publication number: 20090297033Abstract: An image processing apparatus extracts an area for each color from an illustration area, specifies an area that is in contact with the boundary of the illustration area, extracts a color around the illustration area, determines whether or not the extracted color around the illustration area is the same as the color of the specified area, and processes vector data that represents an area that has been determined as having the same color.Type: ApplicationFiled: April 14, 2009Publication date: December 3, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Naoki Ito, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikata, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Yoichi Kashibuchi, Junya Arakawa, Shinji Sano
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Publication number: 20090290797Abstract: An image processing apparatus has a separation unit for separating objects constituting an image input by an image input unit, a setting unit for setting a criterion to determine whether or not a separated object is stored, and a determination unit for determining whether the separated object is stored based on the criterion set by the setting unit. The image processing apparatus also has a unit for displaying the separated object, responding to a user access via an interface unit, when the separated object is determined to be stored by the determination unit and storing the separated object such that the separated object can be reused.Type: ApplicationFiled: February 11, 2009Publication date: November 26, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Junya Arakawa, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikala, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Naoki Ito, Yoichi Kashibuchi, Shinji Sano
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Publication number: 20090284801Abstract: Each object in input image data is separated into an area by an image area separation unit. An area determined to be a character area based on the image area separation processing is smoothened by an MTF correction unit. The resulting data is then binarized by a binarizing unit. The binarized data is split according to types of objects, and characters and line drawings are vectorized and stored in a storage unit. Alternatively, the characters and line drawings are printed out.Type: ApplicationFiled: April 28, 2009Publication date: November 19, 2009Applicant: CANON KABUSHIKI KAISHAInventors: TSUTOMU SAKAUE, Takeshi Namikata, Shinji Sano, Junya Arakawa
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Publication number: 20090274369Abstract: An image processing device includes a dividing unit for dividing objects of an input image, a metadata adding unit for adding metadata to each of the divided objects by performing OCR processing and morpheme analysis, a display unit for displaying at least one of the divided objects and the metadata added to the divided object, and a metadata accuracy determining unit for determining accuracies of the added metadata. The display unit preferentially displays metadata determined as being low in accuracy by the metadata accuracy determining unit.Type: ApplicationFiled: February 12, 2009Publication date: November 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Shinji Sano, Hiroshi Kaburagi, Tsutomu Sakaue, Takeshi Namikata, Manabu Takebayashi, Reiji Misawa, Osamu Iinuma, Naoki Ito, Yoichi Kashibuchi, Junya Arakawa
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Publication number: 20090009782Abstract: In prior art, there are some occasions where functions of a copy-forgery-inhibited pattern are impaired when printed on a sheet after rotation because of the level difference appearing between the density level of a latent image portion and the density level of a background portion of a copy-forgery-inhibited pattern. To cope with the problem, the image processing apparatus which has a generating unit for generating copy-forgery-inhibited pattern image data and a rotation unit for rotating the generated copy-forgery-inhibited pattern image data, wherein the generating unit generates the copy-forgery-inhibited pattern image data to be rotated by the rotation unit in accordance with a rotation angle in the rotation unit.Type: ApplicationFiled: June 24, 2008Publication date: January 8, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa
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Publication number: 20080151274Abstract: There is provided an image processing apparatus configured to generate code information represented by a dot array and attach the code information on an image. The image processing apparatus includes a determination unit configured to determine one pattern from among a plurality of patterns wherein locations to attach the code information differ from each other, and an attaching unit configured to attach the code information on a location corresponding to the pattern determined by the determination unit.Type: ApplicationFiled: December 4, 2007Publication date: June 26, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa
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Publication number: 20080130884Abstract: The present invention improves security of image data when communication between an image managing apparatus that stores the image data of a submitted job and an image processing apparatus is not possible. To accomplish this, for executing a specific process according to a submitted job, the image data and log information of the job is transmitted to the image managing apparatus to store them when the image processing apparatus can communicate with the image managing apparatus. After transmission of the image data and the log information, upon receiving a notification indicating the completion of storage from the image managing apparatus, control is made to execute a specific process on the image data.Type: ApplicationFiled: November 28, 2007Publication date: June 5, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Matsumoto, Fumitoshi Ito, Fumio Mikami, Junya Arakawa
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Publication number: 20080019590Abstract: According to the claimed invention, an image processing apparatus is provided, wherein the image processing apparatus comprises a color determiner, adapted to determine a color of image data; a color space determiner, adapted to determine a color space for compressing the image data based on the color determined by the color determiner; and a converter, adapted to convert the image data into data on a plurality of planes that constitute the color space determined by the color space determiner and compressing the data on each plane, wherein the color space determiner determines the color space based on the color determined by the color determiner so that AC components of the image data concentrate on a certain plane of the plurality of planes.Type: ApplicationFiled: June 18, 2007Publication date: January 24, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Junya Arakawa