公开(公告)号：US07456876B2

公开(公告)日：2008-11-25

申请号：US10625567

申请日：2003-07-24

申请人： Jun Funakoshi ,  Shigeru Nishio ,  Asao Kokubo ,  Masatoshi Kokubun

发明人： Jun Funakoshi ,  Shigeru Nishio ,  Asao Kokubo ,  Masatoshi Kokubun

IPC分类号： H04N5/217

CPC分类号： H04N5/361

摘要： An image processing circuit for a color image sensor, comprising a color sensitivity correction circuit which adds/subtracts a predetermined offset to/from pixel signals being output by amplifying photoelectric conversion signals of pixels, which have photoelectric conversion element and are arranged in column and row directions, for each column, and multiplies the result by a predetermined gain, wherein the predetermined offset includes a first offset, which is set according to each color, and a second offset, which is set according to a plurality of columns. According to the present invention, the offset of the color sensitivity correction circuit includes a first offset, which is set according to each color, and a second offset, which is set according to a plurality of columns, therefore, periodic moiré in the vertical direction, which is caused by the column output circuit and the output signal supply circuit for each column, can be suppressed, and image quality can be improved.

摘要翻译： 一种用于彩色图像传感器的图像处理电路，包括：色彩敏感度校正电路，用于通过放大具有光电转换元件并被布置成列和列的像素的光电转换信号输出的像素信号中加上/减去预定偏移 方向，并且将结果乘以预定增益，其中预定偏移包括根据每种颜色设置的第一偏移和根据多个列设置的第二偏移。 根据本发明，色彩敏感度校正电路的偏移包括根据每种颜色设置的第一偏移和根据多个列设置的第二偏移，因此，垂直方向上的周期性波纹 ，可以抑制由列输出电路和每列的输出信号供给电路引起的，并且可以提高图像质量。

公开(公告)号：US07106912B2

公开(公告)日：2006-09-12

申请号：US10358212

申请日：2003-02-05

申请人： Asao Kokubo ,  Jun Funakoshi ,  Katsuyoshi Yamamoto

发明人： Asao Kokubo ,  Jun Funakoshi ,  Katsuyoshi Yamamoto

IPC分类号： G06K9/40

CPC分类号： H04N5/3675

摘要： A circuit for correction of white pixel defects capable of complementing white pixel faults without using a storage device for holding white pixel fault spots, and an image sensor using the circuit for correction of white pixel defects. Pixels constituting a pixel section are sequentially subjected to white pixel fault complementation process. A nearby pixel data holding section acquires pixel data from a readout circuit and holds the data. A comparison-determination section compares lightness of a target pixel with that of a nearby pixel and determines, based on the comparison result, whether or not the target pixel is associated with a white pixel fault having a lightness higher than that of the nearby pixel by a predetermined value or more. When it is judged by the comparison-determination section that the target pixel is associated with a white pixel fault, a complementary calculation section performs a complementary calculation by using the pixel data of the target and nearby pixels held by the nearby pixel data holding section, to generate complemented data.

公开(公告)号：US20050285961A1

公开(公告)日：2005-12-29

申请号：US10968044

申请日：2004-10-20

申请人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Yutaka Takeda ,  Norihiro Yoshida

发明人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Yutaka Takeda ,  Norihiro Yoshida

IPC分类号： G06F1/04 ,  G06F1/06 ,  G06F1/08 ,  H04N3/14 ,  H04N5/335 ,  H04N5/341 ,  H04N5/357 ,  H04N5/363 ,  H04N5/376 ,  H04N9/64

CPC分类号： H04N5/3765 ,  H04N5/3577

摘要： A solid-state imaging device includes an image sensor configured to output image data generated by image sensing elements together with a timing signal, and an image processing unit configured to output the image data supplied from the image sensor having undergone predetermined signal processing a predetermined delay time after a timing indicated by the timing signal, the image sensor further configured to make the timing signal indicate a first timing that is at least the processing delay time earlier than a second timing indicative of a start of a valid period of the image data, and to output dummy data from the first timing to the start of the valid period of the image data.

摘要翻译： 一种固态成像装置，包括图像传感器，被配置为输出由图像检测元件生成的图像数据和定时信号;以及图像处理单元，被配置为输出从已经经过预定信号处理的图像传感器提供的图像数据， 在由定时信号指示的定时之后的时间，图像传感器还被配置为使得定时信号指示比指示图像数据的有效时段的开始的第二定时更早的处理延迟时间的第一定时， 并将伪数据从第一定时输出到图像数据的有效期的开始。

公开(公告)号：US07263215B2

公开(公告)日：2007-08-28

申请号：US10626539

申请日：2003-07-25

申请人： Shigeru Nishio ,  Hiroshi Daiku ,  Asao Kokubo

发明人： Shigeru Nishio ,  Hiroshi Daiku ,  Asao Kokubo

IPC分类号： G06K9/00 ,  H04N9/64

CPC分类号： G06T5/005 ,  G06T2207/10004 ,  H04N5/367

摘要： A semiconductor integrated circuit includes a check unit which compares a value of a pixel of interest with values of neighboring pixels contained in an image signal supplied from an image sensor, and determines based on the comparison whether the pixel of interest is defective, and a defect correcting unit which corrects the value of the pixel of interest by using values of surrounding pixels in response to the determination by the check unit that the pixel of interest is defective.

摘要翻译： 半导体集成电路包括检查单元，其将感兴趣像素的值与包含在从图像传感器提供的图像信号中的相邻像素的值进行比较，并且基于比较来确定关注像素是否有缺陷，以及缺陷 校正单元，其响应于由检查单元确定感兴趣的像素有缺陷，通过使用周围像素的值来校正感兴趣像素的值。

公开(公告)号：US07522199B2

公开(公告)日：2009-04-21

申请号：US10995394

申请日：2004-11-24

申请人： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Asao Kokubo ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

发明人： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Asao Kokubo ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

IPC分类号： H04N9/64

CPC分类号： H04N5/3658 ,  H04N5/378

摘要： An imaging device provided with a read circuit in which a light-shielding region is formed in a part of an image region where a plurality of optical/electrical conversion devices is two-dimensionally arrayed in the row and column directions and which converts a optically detected signal outputted from each of the optical/electrical conversion devices for each of the column into a digital signal, comprises a storage device for storing the outputted digital signal outputted in relation with the optical/electrical conversion device in the light-shielding region and a difference calculation device for calculating a difference between the outputted digital signal in relation with the optical/electrical conversion device in a light-receiving region except the light-shielding region and a value stored in the storage device.

摘要翻译： 一种具有读取电路的成像装置，其中在多个光/电转换装置在行和列方向上二维排列的图像区域的一部分中形成有遮光区域，并且将光学检测 从每个列的每个光/电转换装置输出的信号为数字信号，包括存储装置，用于存储在光屏蔽区域中输出的与光/电转换装置相关的数字信号， 计算装置，用于计算除光屏蔽区域之外的光接收区域中与光/电转换装置相关的输出数字信号之间的差和存储在存储装置中的值。

公开(公告)号：US07920181B2

公开(公告)日：2011-04-05

申请号：US11360673

申请日：2006-02-24

申请人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Tsuyoshi Higuchi

发明人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Tsuyoshi Higuchi

IPC分类号： H04N5/217

CPC分类号： H04N5/361

摘要： The challenge of the present invention is to suppress a variation in brightness of an image and make a reference value of a black level converge at an appropriate value in a short time. A condition judgment circuit judges whether or not a frame of an amount of change in gains of a variable gain amplifier being equal to or greater than a threshold continues for a predefined frames or more. If a frame of an amount of change in the gains being equal to or greater than the threshold continues for the predefined frames, a black level value of the current frame is set for new black level reference. If not continues for the predetermined number, the previous black level reference value is retained in lieu of correcting the black level.

摘要翻译： 本发明的挑战是抑制图像的亮度变化，并使黑色电平的参考值在短时间内收敛于适当的值。 条件判断电路判断可变增益放大器的增益变化量的帧是否等于或大于阈值持续预定义的帧或更多帧。 如果对于预定义帧，增益等于或大于阈值的变化量的帧持续，则为新的黑色级别参考设置当前帧的黑色电平值。 如果不继续预定数量，则保留先前的黑电平参考值以代替校正黑电平。

公开(公告)号：US07612810B2

公开(公告)日：2009-11-03

申请号：US10968044

申请日：2004-10-20

申请人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Yutaka Takeda ,  Norihiro Yoshida

发明人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Yutaka Takeda ,  Norihiro Yoshida

IPC分类号： H04N5/217 ,  H04N9/64 ,  H04N5/335

CPC分类号： H04N5/3765 ,  H04N5/3577

摘要： A solid-state imaging device includes an image sensor configured to output image data generated by image sensing elements together with a timing signal, and an image processing unit configured to output the image data supplied from the image sensor having undergone predetermined signal processing a predetermined delay time after a timing indicated by the timing signal, the image sensor further configured to make the timing signal indicate a first timing that is at least the processing delay time earlier than a second timing indicative of a start of a valid period of the image data, and to output dummy data from the first timing to the start of the valid period of the image data.

摘要翻译： 一种固态成像装置，包括图像传感器，被配置为输出由图像检测元件生成的图像数据和定时信号;以及图像处理单元，被配置为输出从已经经过预定信号处理的图像传感器提供的图像数据， 在由定时信号指示的定时之后的时间，图像传感器还被配置为使得定时信号指示比指示图像数据的有效时段的开始的第二定时更早的处理延迟时间的第一定时， 并将伪数据从第一定时输出到图像数据的有效期的开始。

公开(公告)号：US20060176382A1

公开(公告)日：2006-08-10

申请号：US11143665

申请日：2005-06-03

申请人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Hiroshi Kobayashi ,  Wakako Hoshino

发明人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Hiroshi Kobayashi ,  Wakako Hoshino

IPC分类号： H04N5/335

CPC分类号： H04N5/3658

摘要： In an image sensor provided with an AD conversion circuit in each column, the offset value of each AD conversion circuit disposed in each column is corrected, using a value based on the output in each column of a plurality of lines composed of shielded pixels in order to provide an effective method for reducing vertically-striped noise due to the variation of the offset element of the AD conversion circuit.

摘要翻译： 在每列中设置有AD转换电路的图像传感器中，使用基于由屏蔽像素构成的多行中的每列中的输出的值来校正每列中设置的每个AD转换电路的偏移值 提供一种用于减少由于AD转换电路的偏移元件的变化引起的垂直条纹噪声的有效方法。

公开(公告)号：US20060001753A1

公开(公告)日：2006-01-05

申请号：US10995394

申请日：2004-11-24

申请人： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Asao Kokubo ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

发明人： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Asao Kokubo ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

IPC分类号： H04N5/335

CPC分类号： H04N5/3658 ,  H04N5/378

摘要： An imaging device provided with a read circuit in which a light-shielding region is formed in a part of an image region where a plurality of optical/electrical conversion devices is two-dimensionally arrayed in the row and column directions and which converts a optically detected signal outputted from each of the optical/electrical conversion devices for each of the column into a digital signal, comprises a storage device for storing the outputted digital signal outputted in relation with the optical/electrical conversion device in the light-shielding region and a difference calculation device for calculating a difference between the outputted digital signal in relation with the optical/electrical conversion device in a light-receiving region except the light-shielding region and a value stored in the storage device.

摘要翻译： 一种具有读取电路的成像装置，其中在多个光/电转换装置在行和列方向上二维排列的图像区域的一部分中形成有遮光区域，并且将光学检测 从每个列的每个光/电转换装置输出的信号为数字信号，包括存储装置，用于存储在光屏蔽区域中输出的与光/电转换装置相关的数字信号， 计算装置，用于计算除光屏蔽区域之外的光接收区域中与光/电转换装置相关的输出数字信号之间的差和存储在存储装置中的值。

公开(公告)号：US20070075772A1

公开(公告)日：2007-04-05

申请号：US11360673

申请日：2006-02-24

申请人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Tsuyoshi Higuchi

发明人： Asao Kokubo ,  Hiroshi Daiku ,  Jun Funakoshi ,  Tsuyoshi Higuchi

IPC分类号： H03F3/04

CPC分类号： H04N5/361

摘要： The challenge of the present invention is to suppress a variation in brightness of an image and make a reference value of a black level converge at an appropriate value in a short time. Acondition judgment circuit judges whether or not a frame of an amount of change in gains of a variable gain amplifier being equal to or greater than a threshold continues for a predefined frames or more. If a frame of an amount of change in the gains being equal to or greater than the threshold continues for the predefined frames, a black level value of the current frame is set for new black level reference. If not continues for the predetermined number, the previous black level reference value is retained in lieu of correcting the black level.

摘要翻译： 本发明的挑战是抑制图像的亮度变化，并使黑色电平的参考值在短时间内收敛于适当的值。 条件判断电路判断可变增益放大器的增益变化量的帧是否等于或大于阈值持续预定义的帧或更多帧。 如果对于预定义帧，增益等于或大于阈值的变化量的帧持续，则为新的黑色级别参考设置当前帧的黑色电平值。 如果不继续预定数量，则保留先前的黑电平参考值以代替校正黑电平。