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公开(公告)号：US11170243B2
公开(公告)日：2021-11-09
申请号：US16886810
申请日：2020-05-29
申请人： Masamoto Nakazawa , Tadaaki Oyama , Yutaka Ohmiya
发明人： Masamoto Nakazawa , Tadaaki Oyama , Yutaka Ohmiya
摘要： An image processing device includes a light source, an image reader, and circuitry. The light source is configured to irradiate an object at least with invisible light. The image reader is configured to read first information and second information. The first information is included in the object and indicating a first characteristic in response to the object being irradiated with the invisible light. The second information is included in the object and indicating a second characteristic in response to the object being irradiated with the invisible light. The circuitry is configured to selectively output the first information read by the image reader.
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公开(公告)号：US11190666B2
公开(公告)日：2021-11-30
申请号：US16861233
申请日：2020-04-29
申请人： Yutaka Ohmiya , Masamoto Nakazawa , Tadaaki Oyama
发明人： Yutaka Ohmiya , Masamoto Nakazawa , Tadaaki Oyama
IPC分类号： H04N1/10
摘要： An image processing device includes a light source, a reader, and circuitry. The light source is configured to irradiate an object at least with invisible light. The reader is configured to read a first image from the object irradiated with the invisible light. The circuitry is configured to generate a second image from the first image read by the reader. The circuitry is configured to recognize first information in the second image.
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公开(公告)号：US11095788B2
公开(公告)日：2021-08-17
申请号：US16589329
申请日：2019-10-01
申请人： Tadaaki Oyama , Masamoto Nakazawa , Hiroki Shirado , Tomohiro Sasa , Tatsuya Ozaki , Kohsuke Nambara
发明人： Tadaaki Oyama , Masamoto Nakazawa , Hiroki Shirado , Tomohiro Sasa , Tatsuya Ozaki , Kohsuke Nambara
摘要： A document size detection device includes: a light source that irradiates a document placed on placing means with scanning light via the placing means; a reading unit that receives reflection light from the document via the placing means to acquire image data of the document; and circuitry to set an illumination depth of the scanning light at a size detection time when the size is detected, shallower than an illumination depth of the scanning light at an image reading time when an image of the document is read, and detects, at the size detection time, the size based on a difference between first image data acquired in a state in which the scanning light is switched off and second image data acquired in a state in which the scanning light is switched on.
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公开(公告)号：US11089177B2
公开(公告)日：2021-08-10
申请号：US16589258
申请日：2019-10-01
申请人： Tatsuya Ozaki , Tadaaki Oyama , Tomohiro Sasa , Hiroki Shirado , Kohsuke Nambara , Masamoto Nakazawa
发明人： Tatsuya Ozaki , Tadaaki Oyama , Tomohiro Sasa , Hiroki Shirado , Kohsuke Nambara , Masamoto Nakazawa
摘要： A reading device includes: a light source that irradiates a subject with scanning light; a light receiving section that receives reflection light from the subject; and circuitry to: control the light source to switch on and off of the scanning light; control the light receiver to receive the reflection light from the subject for a predetermined acquisition time at a predetermined acquisition interval so as to acquire data; and calculate a difference between the data acquired while the scanning light is switched on and the data acquired while the scanning light is switched off. The predetermined acquisition time and the predetermined acquisition interval are set such that the acquisition time or a total time of the acquisition time and the acquisition interval become an integer multiple of a fluctuation cycle of a fluctuation factor.
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公开(公告)号：US10834272B2
公开(公告)日：2020-11-10
申请号：US16533984
申请日：2019-08-07
申请人： Masamoto Nakazawa , Tadaaki Oyama , Masahiro Itoh , Masato Tanaka
发明人： Masamoto Nakazawa , Tadaaki Oyama , Masahiro Itoh , Masato Tanaka
IPC分类号： H04N1/00
摘要： A reading device includes an imaging element and correcting circuitry. The imaging element is configured to receive light from an object selectively irradiated with visible light or invisible light. The correcting circuitry is configured to apply correction processing based on a difference in an optical characteristic between an invisible light region and a visible light region to an image signal in the invisible light region output from the imaging element and output the image signal corrected.
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6.发明授权公开(公告)号：US11546535B2
公开(公告)日：2023-01-03
申请号：US16925391
申请日：2020-07-10
摘要： An abnormal-pixel detecting device includes an image sensor and an image processor. The image sensor is configured to capture an image of a subject. The image processor is configured to calculate: a ratio between a first plurality of pixel values captured by the image sensor and a second plurality of pixel values whose reference position is shifted relative to the first plurality of pixel values in a main scanning direction to obtain a third plurality of pixel values; and detect an abnormal pixel in the third plurality of pixel values.
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公开(公告)号：US11695892B2
公开(公告)日：2023-07-04
申请号：US17161704
申请日：2021-01-29
CPC分类号： H04N1/3878 , H04N1/0075 , H04N1/00737 , H04N1/00748 , H04N1/00755
摘要： A reading device includes a light source, an image sensor, a background board, and an image processing circuitry. The light source irradiates visible light and invisible light to a subject. The image sensor receives the visible light and the invisible light, each of which is reflected from the subject, to capture a visible image and an invisible image. The background board is provided in an image capturing range of the image sensor. The background board is a background portion. The image processing circuitry detects a feature amount of the subject and the background portion from at least one of the visible image and the invisible image.
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公开(公告)号：US11694455B2
公开(公告)日：2023-07-04
申请号：US17574573
申请日：2022-01-13
申请人： Tadaaki Oyama , Masamoto Nakazawa
发明人： Tadaaki Oyama , Masamoto Nakazawa
IPC分类号： H04N1/028 , G06V10/143 , G06V10/147 , G06V20/00 , H04N1/00 , H04N1/195
CPC分类号： G06V20/95 , G06V10/143 , G06V10/147 , H04N1/00005 , H04N1/02805 , H04N1/02815 , H04N1/19584
摘要： A fraud confirmation assisting apparatus includes a light source, a reading sensor, and processing circuitry. The light source irradiates an object to be read with light in at least an invisible wavelength range. The reading sensor has sensitivity at least in the invisible wavelength range. The processing circuitry performs a reading operation on the object to be read by a combination of the light source and the reading sensor, and outputs a plurality of pieces of fraud confirmation information based on read information output from the reading sensor by the reading operation.
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公开(公告)号：US11553108B2
公开(公告)日：2023-01-10
申请号：US17481676
申请日：2021-09-22
摘要： A reading device includes a first light source, a second light source, a first reading unit, a second reading unit, a comparison unit, and a correction unit. The first source irradiates an object to be read, with first light having a first transmittance to the object. The second source irradiates the object with second light having a second transmittance to the object. The first reading unit reads the first light from the object to output first image data. The second reading unit reads the second light from the object to output second image data. The comparison unit compares a data difference between the first and second image data. In a case where the data difference is equal to or larger than a threshold, the correction unit corrects data of an image area having the data difference equal to or larger than the threshold in the first or second image data.
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公开(公告)号：US11457121B2
公开(公告)日：2022-09-27
申请号：US17487278
申请日：2021-09-28
摘要： A reading device includes a first light source configured to emit light, a second light source configured to emit light in a wavelength of light different from a wavelength of light of the first light source, circuitry configured to instruct the first light source and the second light source to turn on and turn off, a first light-intensity adjuster configured to adjust light intensity of the first light source based on a first light intensity value, a second light-intensity adjuster configured to adjust light intensity of the second light source based on a second light intensity value, a first image sensor configured to receive the light that is emitted from the first light source and is reflected by an object, and a second image sensor configured to receive the light that is emitted from the first light source and the second light source and is reflected by the object.
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