-
公开(公告)号：US10951791B2
公开(公告)日：2021-03-16
申请号：US16800098
申请日：2020-02-25
申请人： Ayumu Hashimoto , Hajime Tsukahara , Hiroki Shirado , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Kimiharu Yanagisawa , Yoshiaki Nagao , Masahiro Itoh
发明人： Ayumu Hashimoto , Hajime Tsukahara , Hiroki Shirado , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Kimiharu Yanagisawa , Yoshiaki Nagao , Masahiro Itoh
摘要： An image processing apparatus includes circuitry to: obtain a read image read from an image of a document output from an image reading device; detect an edge between a background area and a document area in the read image; sample a detection result of the edge at each first interval in a first direction to extract a first boundary point group including a plurality of boundary points; sample the detection result of the edge at each second interval in the first direction to extract a second boundary point group including a plurality of boundary points; determine a noise removal condition based on the first boundary point group; remove, from the second boundary point group, a boundary point satisfying the noise removal condition as noise; and calculate a linear equation approximating the second boundary point group from which the noise is removed.
-
公开(公告)号：US10182177B2
公开(公告)日：2019-01-15
申请号：US15485323
申请日：2017-04-12
摘要： A signal processing device includes a signal output circuit, a controller, and a corrector. The signal output circuit outputs a signal according to a physical quantity being input. The controller controls the signal output circuit. The corrector corrects a signal to be corrected. The signal to be corrected is output from the signal output circuit. The signal output circuit selectively performs one of first operation of outputting a characteristic signal that indicates characteristics of the signal output circuit and second operation of outputting a pseudo signal that is generated spuriously, according to control of the controller. The corrector corrects the signal to be corrected based on one of the characteristic signal and the pseudo signal output from the signal output circuit.
-
3.发明申请公开(公告)号：US20180146150A1
公开(公告)日：2018-05-24
申请号：US15790101
申请日：2017-10-23
摘要： A photoelectric conversion device having plural photoelectric conversion pixels includes an imaging unit, a position identifying unit, an interpolation determining unit, and an interpolation processing unit. The imaging unit generates image data for each of plural colors based on light received in the photoelectric conversion pixels. The position identifying unit detects in the photoelectric conversion pixels a defective pixel outputting an electrical signal at an abnormal level, and stores position information of the defective pixel. The interpolation deter mining unit determines, based on respective pixel values of peripheral pixels peripheral to the defective pixel, whether to perform an interpolation process on the defective pixel. The interpolation processing unit performs the interpolation process on the defective pixel when the interpolation determining unit determines to perform the interpolation process on the defective pixel. The interpolation process approximates the electrical signal of the defective pixel to an electrical signal at a normal level.
-
公开(公告)号：US09094630B2
公开(公告)日：2015-07-28
申请号：US13960056
申请日：2013-08-06
申请人： Hiroki Shirado
发明人： Hiroki Shirado
CPC分类号： H04N1/3872 , G06K15/4095 , H04N1/00005 , H04N1/00037 , H04N1/0005 , H04N1/00082 , H04N1/00278 , H04N1/12 , H04N1/193 , H04N1/32048 , H04N1/32133 , H04N1/4433 , H04N2201/044 , H04N2201/3208 , H04N2201/3235 , H04N2201/3236 , H04N2201/3269 , H04N2201/327 , H04N2201/3271
摘要： An image processing apparatus includes a scanning unit, a gloss detecting unit, and a glossy information processing unit. The scanning unit includes a light source and is configured to scan a document to be scanned at a first illumination position not resulting in halation caused by light of the light source output to the document, and scan the document at a second illumination position resulting in halation caused by the light output to the document. The gloss detecting unit is configured to detect a glossy portion of the document based on images scanned at the first illumination position and the second illumination position. The glossy information processing unit is configured to perform a predetermined process by using information represented by the detected glossy portion.
摘要翻译： 图像处理装置包括扫描单元，光泽检测单元和光泽信息处理单元。 扫描单元包括光源，并且被配置为在第一照明位置扫描要扫描的文档，而不会导致由输出到文档的光源的光引起的停止，并且在第二照明位置扫描文档导致暂停 由光输出引起的文件。 光泽检测单元被配置为基于在第一照明位置和第二照明位置扫描的图像来检测文档的光泽部分。 光泽信息处理单元被配置为通过使用由检测到的光泽部分表示的信息来执行预定处理。
-
5.发明授权Image reading device and image forming apparatus, and method of controlling image reading device 失效图像读取装置和图像形成装置以及图像读取装置的控制方法公开(公告)号：US08503047B2
公开(公告)日：2013-08-06
申请号：US13223501
申请日：2011-09-01
申请人： Hiroki Shirado
发明人： Hiroki Shirado
IPC分类号： H04N1/04
CPC分类号： H04N1/00811 , H04N1/0044 , H04N1/00816 , H04N1/1013 , H04N1/193 , H04N2201/0081 , H04N2201/0098 , H04N2201/044
摘要： A controller controls a scanner unit of an image reading device to read a section of an original document that corresponds to an image reading area specified by a user, when a user instruction for setting the image reading area is received. The controller causes the scanner unit to move to an image reading start position in a sub-scanning direction as specified by a user instruction. When a user instruction for starting image reading is received, the controller causes the scanner unit to start reading the section of the original document from the image reading start position.
摘要翻译： 当接收到用于设置图像读取区域的用户指令时，控制器控制图像读取装置的扫描器单元，以读取与用户指定的图像读取区域相对应的原始文档的一部分。 控制器使扫描仪单元沿用户指令指定的副扫描方向移动到图像读取开始位置。 当接收到用于开始图像读取的用户指令时，控制器使扫描仪单元从图像读取开始位置开始读取原始文档的部分。
-
公开(公告)号：US10536655B2
公开(公告)日：2020-01-14
申请号：US15790101
申请日：2017-10-23
摘要： A photoelectric conversion device having plural photoelectric conversion pixels includes an imaging unit, a position identifying unit, an interpolation determining unit, and an interpolation processing unit. The imaging unit generates image data for each of plural colors based on light received in the photoelectric conversion pixels. The position identifying unit detects in the photoelectric conversion pixels a defective pixel outputting an electrical signal at an abnormal level, and stores position information of the defective pixel. The interpolation deter mining unit determines, based on respective pixel values of peripheral pixels peripheral to the defective pixel, whether to perform an interpolation process on the defective pixel. The interpolation processing unit performs the interpolation process on the defective pixel when the interpolation determining unit determines to perform the interpolation process on the defective pixel. The interpolation process approximates the electrical signal of the defective pixel to an electrical signal at a normal level.
-
7.发明授权公开(公告)号：US10091383B2
公开(公告)日：2018-10-02
申请号：US15600156
申请日：2017-05-19
申请人： Naoki Goh , Masaki Nagase , Hiroki Shirado , Naoki Asaba , Shiho Shimosaka , Satoshi Hatanaka , Osamu Kizaki , Hiroshi Ishii , Masayuki Yabuuchi , Hideki Hashimoto , Atsushi Yoshida , Masafumi Kishi , Ayumu Hashimoto
发明人： Naoki Goh , Masaki Nagase , Hiroki Shirado , Naoki Asaba , Shiho Shimosaka , Satoshi Hatanaka , Osamu Kizaki , Hiroshi Ishii , Masayuki Yabuuchi , Hideki Hashimoto , Atsushi Yoshida , Masafumi Kishi , Ayumu Hashimoto
IPC分类号： H04N1/04 , G03G15/043 , G03G15/01 , H04N1/00
摘要： An image reading apparatus includes: a plurality of light sources to emit light to a target to be read from a plurality of different irradiation positions; an illumination controller to sequentially and alternately turn on or off the plurality of light sources with a blinking cycle not perceptible to the human eye; an image capturing device to photoelectrically convert, pixel by pixel, reflected light of the light emitted to the target from the plurality of light sources to capture a plurality of read images; a memory to store one or more read images of the plurality of read images being captured; and a synthesizer to synthesize preset regions of the plurality of read images using the one or more read images stored in the memory to generate a synthesized read image representing the target, the preset region of each of the plurality of read images having an image level change caused by reflected light that is smaller than a threshold.
-
8.发明申请公开(公告)号：US20170302821A1
公开(公告)日：2017-10-19
申请号：US15485323
申请日：2017-04-12
CPC分类号： H04N1/409 , H04N1/00018 , H04N1/193 , H04N1/40056 , H04N1/4076 , H04N2201/0094
摘要： A signal processing device includes a signal output circuit, a controller, and a corrector. The signal output circuit outputs a signal according to a physical quantity being input. The controller controls the signal output circuit. The corrector corrects a signal to be corrected. The signal to be corrected is output from the signal output circuit. The signal output circuit selectively performs one of first operation of outputting a characteristic signal that indicates characteristics of the signal output circuit and second operation of outputting a pseudo signal that is generated spuriously, according to control of the controller. The corrector corrects the signal to be corrected based on one of the characteristic signal and the pseudo signal output from the signal output circuit.
-
9.发明申请IMAGING ELEMENT, IMAGE READING DEVICE, IMAGE FORMING APPARATUS, AND IMAGING METHOD 有权成像元件，图像读取装置，图像形成装置和成像方法公开(公告)号：US20170019567A1
公开(公告)日：2017-01-19
申请号：US15191035
申请日：2016-06-23
申请人： Yoshio KONNO , Masamoto NAKAZAWA , Hiroki SHIRADO
发明人： Yoshio KONNO , Masamoto NAKAZAWA , Hiroki SHIRADO
IPC分类号： H04N1/58 , H04N5/376 , H04N5/369 , H04N5/3745 , H04N5/363 , H04N5/378 , H04N1/028 , H04N9/04
CPC分类号： H04N1/58 , H04N1/02805 , H04N1/401 , H04N5/361 , H04N5/363 , H04N5/3692 , H04N5/378 , H04N2201/0081 , H04N2201/0094
摘要： An imaging element includes: a plurality of pixel units configured to each include a plurality of light receiving elements performing photoelectric conversion; a plurality of analog-to-digital (A/D) converters configured to be provided to each of the pixel units for sequentially converting an analog signal obtained by photoelectric conversion performed by the light receiving elements to a digital signal; a plurality of first holding units configured to be provided to each of the pixel units for sequentially holding a digital signal obtained by conversion performed by the A/D converters; and a plurality of second holding units configured to receive and hold a digital signal held by the first holding units in a period when the A/D converters do not convert an analog signal to a digital signal.
摘要翻译： 成像元件包括：多个像素单元，被配置为每个像素单元包括执行光电转换的多个光接收元件; 多个模数（A / D）转换器，被配置为提供给每个像素单元，用于将由光接收元件执行的光电转换获得的模拟信号顺序转换为数字信号; 多个第一保持单元，被配置为提供给每个像素单元，用于顺序保持由A / D转换器执行的转换获得的数字信号; 以及多个第二保持单元，被配置为在A / D转换器不将模拟信号转换为数字信号的期间内接收和保持由第一保持单元保持的数字信号。
-
公开(公告)号：US11277541B2
公开(公告)日：2022-03-15
申请号：US17035791
申请日：2020-09-29
申请人： Tatsuya Ozaki , Hiroki Shirado
发明人： Tatsuya Ozaki , Hiroki Shirado
摘要： A signal correction device includes a correction signal generator configured to generate a correction signal serving to remove noise superimposed on an input signal; a phase adjuster configured to shift a phase of the correction signal generated by the correction signal generator; a subtractor configured to generate an output signal for output by subtracting the correction signal from the input signal; a peak and bottom detector configured to detect a peak value and a bottom value of the output signal; and a determiner configured to determine a phase-shift amount of the phase adjuster from the peak value and the bottom value of the output signal detected by the peak and bottom detector. The determiner detects uncorrected noise from the peak value and the bottom value of the output signal from the subtractor, and sets the phase-shift amount such that the uncorrected noise is reduced to a minimum.
-
-
-
-
-
-
-
-
-
搜索结果
36 条记录 (耗时 0.021 秒)