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1.发明授权Signal processing method, signal processing apparatus, and image reading apparatus 有权信号处理方法，信号处理装置和图像读取装置公开(公告)号：US07724951B2
公开(公告)日：2010-05-25
申请号：US11733098
申请日：2007-04-09
CPC分类号： G06K9/40 , G06T5/003 , G06T5/005 , G06T5/20 , G06T5/50 , G06T7/11 , G06T2207/10048 , G06T2207/20192 , G06T2207/30176 , H04N1/4097
摘要： Upon processing a visible light image signal and infrared image signal respectively obtained by illuminating a transparent document with light beams coming from a visible light lamp for mainly emitting visible light and an infrared lamp for mainly emitting infrared light, and photoelectrically converting optical images of the transparent document, a histogram is generated on the basis of the infrared image signal, a threshold value is calculated based on the histogram, and infrared image signal components equal to or smaller than the threshold value are extracted by comparing the calculated threshold value and infrared image signal components. Visible light image signal components corresponding to the extracted infrared image signal components are interpolated using surrounding visible light image signal components.
摘要翻译： 在处理通过用来主要发出可见光的可见光灯的光束照射透明文件和主要发射红外光的红外灯分别获得的可见光图像信号和红外图像信号，并且对透明文档的光学图像进行光电转换 文档中，基于红外图像信号生成直方图，基于直方图计算阈值，并且通过将计算出的阈值和红外图像信号进行比较，提取等于或小于阈值的红外图像信号分量 组件。 使用周围的可见光图像信号成分对与提取的红外图像信号成分对应的可见光图像信号成分进行内插。
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公开(公告)号：US07391928B2
公开(公告)日：2008-06-24
申请号：US11671834
申请日：2007-02-06
CPC分类号： H04N1/4097 , H04N1/40056 , H04N1/486
摘要： An image reading apparatus having a visible light source for emitting visible light, an invisible light source for emitting invisible light, an imaging optical system for irradiating a document by these light sources to form optical images of the document, and a CCD for photoelectrically converting the optical images of the document turns on the visible light source to acquire a visible light image signal by the CCD. Then, the apparatus turns on the invisible light source to acquire an invisible light image signal by the CCD. After the invisible light image signal is acquired, the apparatus turns off the invisible light source, and turns on the visible light source regardless of whether to read the document.
摘要翻译： 具有用于发射可见光的可见光源的图像读取装置，用于发射不可见光的不可见光源，用于通过这些光源照射文件以形成文件的光学图像的成像光学系统，以及用于光电转换 文件的光学图像打开可见光源，以通过CCD获取可见光图像信号。 然后，该装置打开不可见光源以通过CCD获取不可见的光图像信号。 在获取不可见的光图像信号之后，该装置关闭不可见的光源，并且打开可见光源，而不管是否读取文档。
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公开(公告)号：US07245784B2
公开(公告)日：2007-07-17
申请号：US11197709
申请日：2005-08-03
CPC分类号： H04N1/4097 , H04N1/40056 , H04N1/486
摘要： An image reading apparatus having a visible light source for emitting visible light, an invisible light source for emitting invisible light, an imaging optical system for irradiating a document by these light sources to form optical images of the document, and a CCD for photoelectrically converting the optical images of the document turns on the visible light source to acquire a visible light image signal by the CCD. Then, the apparatus turns on the invisible light source to acquire an invisible light image signal by the CCD. After the invisible light image signal is acquired, the apparatus turns off the invisible light source, and turns on the visible light source regardless of whether to read the document.
摘要翻译： 具有用于发射可见光的可见光源的图像读取装置，用于发射不可见光的不可见光源，用于通过这些光源照射文件以形成文件的光学图像的成像光学系统，以及用于光电转换 文件的光学图像打开可见光源，以通过CCD获取可见光图像信号。 然后，该装置打开不可见光源以通过CCD获取不可见的光图像信号。 在获取不可见的光图像信号之后，该装置关闭不可见的光源，并且打开可见光源，而不管是否读取文档。
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公开(公告)号：US20050275909A1
公开(公告)日：2005-12-15
申请号：US11197709
申请日：2005-08-03
CPC分类号： H04N1/4097 , H04N1/40056 , H04N1/486
摘要： An image reading apparatus having a visible light source for emitting visible light, an invisible light source for emitting invisible light, an imaging optical system for irradiating a document by these light sources to form optical images of the document, and a CCD for photoelectrically converting the optical images of the document turns on the visible light source to acquire a visible light image signal by the CCD. Then, the apparatus turns on the invisible light source to acquire an invisible light image signal by the CCD. After the invisible light image signal is acquired, the apparatus turns off the invisible light source, and turns on the visible light source regardless of whether to read the document.
摘要翻译： 具有用于发射可见光的可见光源的图像读取装置，用于发射不可见光的不可见光源，用于通过这些光源照射文件以形成文件的光学图像的成像光学系统，以及用于光电转换 文件的光学图像打开可见光源，以通过CCD获取可见光图像信号。 然后，该装置打开不可见光源以通过CCD获取不可见的光图像信号。 在获取不可见的光图像信号之后，该装置关闭不可见的光源，并且打开可见光源，而不管是否读取文档。
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公开(公告)号：US07006705B2
公开(公告)日：2006-02-28
申请号：US10098904
申请日：2002-03-13
CPC分类号： H04N1/4097 , H04N1/40056 , H04N1/486
摘要： An image reading apparatus having a visible light source for emitting visible light, an invisible light source for emitting invisible light, an imaging optical system for irradiating a document by these light sources to form optical images of the document, and a CCD for photoelectrically converting the optical images of the document turns on the visible light source to acquire a visible light image signal by the CCD. Then, the apparatus turns on the invisible light source to acquire an invisible light image signal by the CCD. After the invisible light image signal is acquired, the apparatus turns off the invisible light source, and turns on the visible light source regardless of whether to read the document.
摘要翻译： 具有用于发射可见光的可见光源的图像读取装置，用于发射不可见光的不可见光源，用于通过这些光源照射文件以形成文件的光学图像的成像光学系统，以及用于光电转换 文件的光学图像打开可见光源，以通过CCD获取可见光图像信号。 然后，该装置打开不可见光源以通过CCD获取不可见的光图像信号。 在获取不可见的光图像信号之后，该装置关闭不可见的光源，并且打开可见光源，而不管是否读取文档。
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6.发明申请SIGNAL PROCESSING METHOD, SIGNAL PROCESSING APPARATUS, AND IMAGE READING APPARATUS 有权信号处理方法，信号处理装置和图像读取装置公开(公告)号：US20070189636A1
公开(公告)日：2007-08-16
申请号：US11733098
申请日：2007-04-09
CPC分类号： G06K9/40 , G06T5/003 , G06T5/005 , G06T5/20 , G06T5/50 , G06T7/11 , G06T2207/10048 , G06T2207/20192 , G06T2207/30176 , H04N1/4097
摘要： Upon processing a visible light image signal and infrared image signal respectively obtained by illuminating a transparent document with light beams coming from a visible light lamp for mainly emitting visible light and an infrared lamp for mainly emitting infrared light, and photoelectrically converting optical images of the transparent document, a histogram is generated on the basis of the infrared image signal, a threshold value is calculated based on the histogram, and infrared image signal components equal to or smaller than the threshold value are extracted by comparing the calculated threshold value and infrared image signal components. Visible light image signal components corresponding to the extracted infrared image signal components are interpolated using surrounding visible light image signal components.
摘要翻译： 在处理通过用来主要发出可见光的可见光灯的光束照射透明文件和主要发射红外光的红外灯分别获得的可见光图像信号和红外图像信号，并且对透明文档的光学图像进行光电转换 文档中，基于红外图像信号生成直方图，基于直方图计算阈值，并且通过将计算出的阈值和红外图像信号进行比较，提取等于或小于阈值的红外图像信号分量 组件。 使用周围的可见光图像信号成分对与提取的红外图像信号成分对应的可见光图像信号成分进行内插。
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公开(公告)号：US20070127841A1
公开(公告)日：2007-06-07
申请号：US11671834
申请日：2007-02-06
IPC分类号： G06K9/40
CPC分类号： H04N1/4097 , H04N1/40056 , H04N1/486
摘要： An image reading apparatus having a visible light source for emitting visible light, an invisible light source for emitting invisible light, an imaging optical system for irradiating a document by these light sources to form optical images of the document, and a CCD for photoelectrically converting the optical images of the document turns on the visible light source to acquire a visible light image signal by the CCD. Then, the apparatus turns on the invisible light source to acquire an invisible light image signal by the CCD. After the invisible light image signal is acquired, the apparatus turns off the invisible light source, and turns on the visible light source regardless of whether to read the document.
摘要翻译： 具有用于发射可见光的可见光源的图像读取装置，用于发射不可见光的不可见光源，用于通过这些光源照射文件以形成文件的光学图像的成像光学系统，以及用于光电转换 文件的光学图像打开可见光源，以通过CCD获取可见光图像信号。 然后，该装置打开不可见光源以通过CCD获取不可见的光图像信号。 在获取不可见的光图像信号之后，该装置关闭不可见的光源，并且打开可见光源，而不管是否读取文档。
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公开(公告)号：US07088477B2
公开(公告)日：2006-08-08
申请号：US10099717
申请日：2002-03-13
CPC分类号： H04N1/00092 , H04N1/00795 , H04N1/02855 , H04N1/10 , H04N1/193 , H04N2201/0406 , H04N2201/0408
摘要： This invention has an object of reading a high-quality image by detecting and correcting dust or scratches present on a transparent original in an image reading apparatus for reading, e.g., a transparent original. To achieve this object, an original illumination unit in the image reading apparatus for reading an original includes at least a first light source for emitting light in a visible region, a second light source for emitting light in a n invisible region, and a light guide plate which has these light sources arranged at end faces and has first and second light guide patterns for guiding light beams from the first and second light sources to the entire light-emitting surface.
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9.发明授权Image processing system, image processing apparatus, image processing method, and storage medium thereof 有权图像处理系统，图像处理装置，图像处理方法及其存储介质公开(公告)号：US07978384B2
公开(公告)日：2011-07-12
申请号：US11180522
申请日：2005-07-14
申请人： Kengo Kinumura , Tsutomu Takayama
发明人： Kengo Kinumura , Tsutomu Takayama
CPC分类号： H04N1/407
摘要： A construction is achieved at low cost which reduces the loss of gradation in a dark portion of an image that has been subjected to gamma correction in accordance with characteristics of a display. In an image reading apparatus, to make it possible to more finely reproduce the gradation in the dark portion, the number of gradations expressed by an signal obtained by a CCD is reduced by performing non-linear gamma correction using a gamma coefficient below one, and the resulting signal is transferred to a computer serving as a host computer. In the computer, the transferred signal is subjected to gamma correction using a gamma coefficient that is an inverse of the gamma coefficient used in the image reading apparatus, thereby canceling out the influence of the gamma correction performed in the image reading apparatus.
摘要翻译： 以低成本实现了结构，其减少了根据显示器的特性进行伽马校正的图像的暗部的灰度损失。 在图像读取装置中，为了能够更加精细地再现暗部的灰度，通过使用低于1的伽马系数执行非线性伽马校正来减少由CCD获得的信号表示的灰度数，并且 所得到的信号被传送到用作主计算机的计算机。 在计算机中，使用与图像读取装置中使用的伽马系数相反的伽马系数对所传送的信号进行伽马校正，从而消除在图像读取装置中执行的伽马校正的影响。
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10.发明申请Image processing system, image processing apparatus, image processing method, and storage medium thereof 有权图像处理系统，图像处理装置，图像处理方法及其存储介质公开(公告)号：US20050254077A1
公开(公告)日：2005-11-17
申请号：US11180522
申请日：2005-07-14
申请人： Kengo Kinumura , Tsutomu Takayama
发明人： Kengo Kinumura , Tsutomu Takayama
CPC分类号： H04N1/407
摘要： A construction is achieved at low cost which reduces the loss of gradation in a dark portion of an image that has been subjected to gamma correction in accordance with characteristics of a display. In an image reading apparatus, to make it possible to more finely reproduce the gradation in the dark portion, the number of gradations expressed by an signal obtained by a CCD is reduced by performing non-linear gamma correction using a gamma coefficient below one, and the resulting signal is transferred to a computer serving as a host computer. In the computer, the transferred signal is subjected to gamma correction using a gamma coefficient that is an inverse of the gamma coefficient used in the image reading apparatus, thereby canceling out the influence of the gamma correction performed in the image reading apparatus.
摘要翻译： 以低成本实现了结构，其减少了根据显示器的特性进行伽马校正的图像的暗部的灰度损失。 在图像读取装置中，为了能够更加精细地再现暗部的灰度，通过使用低于1的伽马系数执行非线性伽马校正来减少由CCD获得的信号表示的灰度数，并且 所得到的信号被传送到用作主计算机的计算机。 在计算机中，使用与图像读取装置中使用的伽马系数相反的伽马系数对所传送的信号进行伽马校正，从而消除在图像读取装置中执行的伽马校正的影响。
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