公开(公告)号：US08213063B2

公开(公告)日：2012-07-03

申请号：US11142037

申请日：2005-06-01

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti ,  Tetuya Katagiri

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti ,  Tetuya Katagiri

IPC分类号： H04N1/46 ,  H04N1/54 ,  H04N1/56 ,  H04N1/58 ,  H04N1/60 ,  H04N9/04 ,  H04N5/235 ,  H04N5/202 ,  G03F3/10 ,  G03B7/00 ,  G03B7/08

CPC分类号： H04N1/4074

摘要： An image sensing apparatus including an image sensor having a first area and a second area and a gradation converter for applying a gradation conversion to an image signal is provided with a gradation conversion LUT storage storing at least two kinds of gradation conversion information. The image sensing apparatus is also provided with a gradation conversion information rewriting section for rewriting the gradation conversion information into new gradation conversion information. There can be provided an image sensing apparatus capable of carrying out a precise gradation conversion even in the case that the inflection point between the first area and the second area of the image sensor constantly changes.

摘要翻译： 包括具有第一区域和第二区域的图像传感器和用于向图像信号应用灰度转换的灰度转换器的图像感测设备设置有存储至少两种灰度转换信息的灰度转换LUT存储器。 图像感测装置还设置有用于将灰度转换信息重写为新的灰度转换信息的灰度转换信息重写部分。 可以提供即使在图像传感器的第一区域和第二区域之间的拐点不断变化的情况下也能够执行精确的灰度转换的图像感测装置。

公开(公告)号：US20050264683A1

公开(公告)日：2005-12-01

申请号：US11033763

申请日：2005-01-12

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： G03B7/093 ,  H01L27/146 ,  H04N5/225 ,  H04N5/235 ,  H04N5/243 ,  H04N5/355 ,  H04N5/369 ,  H04N5/374 ,  H04N5/376 ,  H04N5/378 ,  H04N101/00

CPC分类号： H04N5/243 ,  H04N5/2351 ,  H04N5/2355

摘要： An image sensing apparatus is provided with an image sensor having a photoelectric conversion characteristic having a linear characteristic area where an electrical signal is outputted after being linearly converted in relation to an amount of an incident light and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of the incident light; an evaluation value detector for detecting exposure evaluation values concerning an exposure control based on a luminance information of a subject; and a central control unit for controlling the exposure based on the exposure evaluation values detected by the evaluation value detector. The central control unit includes an exposure amount control parameter calculating section for controlling an exposure amount in accordance with the photoelectric conversion characteristic using the exposure evaluation values and a dynamic range control parameter calculating section for controlling a dynamic range in accordance with the photoelectric conversion characteristic using the exposure evaluation values. Accordingly, a subject image can be picked up while an optimal exposure is made for the subject and a specified dynamic range is attained.

摘要翻译： 图像传感装置具备：具有光电转换特性的图像传感器，该光电转换特性具有相对于入射光量的线性变换而输出电信号的线性特征区域和输出电信号的对数特征区域的光电转换特性 相对于入射光量进行对数转换; 评估值检测器，用于基于对象的亮度信息来检测关于曝光控制的曝光评估值; 以及中央控制单元，用于基于由评估值检测器检测到的曝光评估值来控制曝光。 中央控制单元包括曝光量控制参数计算部分，用于使用曝光评估值根据光电转换特性控制曝光量;以及动态范围控制参数计算部分，用于根据光电转换特性控制动态范围，使用 曝光评估值。 因此，可以在对被摄体进行最佳曝光并且获得指定的动态范围的同时拾取被摄体图像。

公开(公告)号：US07667764B2

公开(公告)日：2010-02-23

申请号：US11143988

申请日：2005-06-02

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N5/238

CPC分类号： H04N5/2355 ,  H04N5/235 ,  H04N5/2351 ,  H04N5/243

摘要： An image sensing apparatus is constructed in such a manner that a calculation priority setter 5111 (5111a) sets a priority between exposure amount control by an exposure amount control parameter calculator 511 (511a) serving as exposure amount controller, and dynamic range control by a dynamic range control parameter calculator 512 (512a) serving as dynamic range controller. Exposure control is executed by performing the exposure amount control and the dynamic range control based on a photoelectric conversion characteristic, by using exposure evaluation values detected by an evaluation value detector 405, based on the priority set by the calculation priority setter 5111 (5111a). This arrangement provides an image sensing apparatus capable of performing exposure control with high latitude, wherein a user is allowed to capture a subject in an optimal exposure state, with an appropriate dynamic range being secured, and control primarily based on the exposure amount control or control primarily based on the dynamic range control is performed on the priority basis.

摘要翻译： 图像感测装置被构造成使得计算优先级设定器5111（5111a）设置由用作曝光量控制器的曝光量控制参数计算器511（511a）的曝光量控制与动态范围控制之间的优先级 作为动态范围控制器的范围控制参数计算器512（512a）。 基于由计算优先级设定器5111（5111a）设定的优先级，通过使用由评价值检测器405检测出的曝光评价值，通过进行基于光电转换特性的曝光量控制和动态范围控制来执行曝光控制。 这种布置提供了能够执行高纬度的曝光控制的图像感测装置，其中允许用户在适当的动态范围得到保证的情况下以最佳曝光状态拍摄被摄体，并且主要基于曝光量控制或控制 主要基于动态范围控制优先执行。

公开(公告)号：US20060001748A1

公开(公告)日：2006-01-05

申请号：US11052327

申请日：2005-02-07

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N9/68

CPC分类号： H04N5/35509

摘要： An image sensing apparatus is provided with an image sensor having a photoelectric conversion characteristic comprised of a linear characteristic area where an electrical signal is outputted after being linearly converted in relation to an amount of an incident light and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of the incident light. An evaluation value detector of a signal processing unit detects evaluation values concerning an image sensing control from each of the linear characteristic area and the logarithmic characteristic area upon picking up an image of a subject based on pieces of subject luminance information in the respective areas. A central control unit (image sensing controller) carries out the image sensing control based on the evaluation values corresponding to the respective areas detected by the evaluation value detector.

摘要翻译： 一种图像传感装置具备：具有光电转换特性的图像传感器，该光电转换特性包括线性特征区域，其中电信号相对于入射光量的线性变换和电信号为 在相对于入射光的量进行对数转换之后输出。 信号处理单元的评估值检测器基于各个区域中的被摄体亮度信息来检测对象的图像，从线性特征区域和对数特征区域中的每一个检测关于图像感测控制的评价值。 中央控制单元（图像感测控制器）基于与由评估值检测器检测到的各个区域对应的评估值来执行图像感测控制。

公开(公告)号：US07714928B2

公开(公告)日：2010-05-11

申请号：US11033763

申请日：2005-01-12

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N5/235

CPC分类号： H04N5/243 ,  H04N5/2351 ,  H04N5/2355

摘要： An image sensing apparatus is provided with an image sensor having a photoelectric conversion characteristic having a linear characteristic area where an electrical signal is outputted after being linearly converted in relation to an amount of an incident light and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of the incident light; an evaluation value detector for detecting exposure evaluation values concerning an exposure control based on a luminance information of a subject; and a central control unit for controlling the exposure based on the exposure evaluation values detected by the evaluation value detector. The central control unit includes an exposure amount control parameter calculating section for controlling an exposure amount in accordance with the photoelectric conversion characteristic using the exposure evaluation values and a dynamic range control parameter calculating section for controlling a dynamic range in accordance with the photoelectric conversion characteristic using the exposure evaluation values. Accordingly, a subject image can be picked up while an optimal exposure is made for the subject and a specified dynamic range is attained.

摘要翻译： 图像传感装置具备：具有光电转换特性的图像传感器，该光电转换特性具有相对于入射光量的线性变换而输出电信号的线性特征区域和输出电信号的对数特征区域的光电转换特性 相对于入射光量进行对数转换; 评估值检测器，用于基于对象的亮度信息来检测关于曝光控制的曝光评估值; 以及中央控制单元，用于基于由评估值检测器检测到的曝光评估值来控制曝光。 中央控制单元包括曝光量控制参数计算部分，用于使用曝光评估值根据光电转换特性控制曝光量;以及动态范围控制参数计算部分，用于根据光电转换特性控制动态范围，使用 曝光评估值。 因此，可以在对被摄体进行最佳曝光并且获得指定的动态范围的同时拾取被摄体图像。

公开(公告)号：US20050280868A1

公开(公告)日：2005-12-22

申请号：US11142037

申请日：2005-06-01

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti ,  Tetuya Katagiri

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti ,  Tetuya Katagiri

IPC分类号： H01L27/146 ,  H04N1/40 ,  H04N1/407 ,  H04N5/20 ,  H04N5/238 ,  H04N5/243 ,  H04N5/335 ,  H04N5/353 ,  H04N5/355 ,  H04N5/374 ,  H04N5/3745

CPC分类号： H04N1/4074

摘要： An image sensing apparatus including an image sensor having a first area and a second area and a gradation converter for applying a gradation conversion to an image signal is provided with a gradation conversion LUT storage storing at least two kinds of gradation conversion information including a first gradation conversion characteristic, which is gradation conversion information for the first area, and a second gradation conversion characteristic, which is gradation conversion information for the second area, the first and second gradation conversion characteristics having a switching point at an inflection pint between the first area and the second area of the image sensor. The image sensing apparatus is also provided with a gradation conversion information rewriting section for rewriting the gradation conversion information into new gradation conversion information whose switching point is changed in conformity with the inflection point after a change in the case that the inflection point is changed. There can be provided an image sensing apparatus capable of carrying out a precise gradation conversion even in the case that the inflection point between the first area and the second area of the image sensor constantly changes.

摘要翻译： 包括具有第一区域和第二区域的图像传感器和用于向图像信号应用灰度转换的灰度转换器的图像感测装置设置有存储至少两种灰度转换信息的灰度转换LUT存储器，所述灰度转换LUT存储器包括第一灰度级 转换特性，其是用于第一区域的灰度转换信息和第二灰度转换特性，其是用于第二区域的灰度转换信息，第一和第二灰度转换特性在第一区域和第一区域之间具有拐点点处的切换点 图像传感器的第二个区域。 图像感测装置还设置有灰度转换信息重写部分，用于将灰度转换信息重写为新的灰度转换信息，其中切换点在拐点改变的情况下改变之后，根据转折点改变。 可以提供即使在图像传感器的第一区域和第二区域之间的拐点不断变化的情况下也能够执行精确的灰度转换的图像感测装置。

公开(公告)号：US08427575B2

公开(公告)日：2013-04-23

申请号：US13523403

申请日：2012-06-14

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N5/225 ,  H04N9/04

CPC分类号： H04N5/2351 ,  H04N5/2355 ,  H04N5/243

摘要： An image sensing apparatus includes: an image sensor which generates an electrical signal commensurate with an amount of incident light, and has a photoelectric conversion characteristic comprised of a linear characteristic area where the electrical signal is outputted after being linearly converted in relation to the amount of incident light, and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of incident light; an exposure evaluation value detector which detects an exposure evaluation value based on luminance information acquired from a subject in sensing an image of the subject; and an exposure controller which acquires a setting value for exposure based on the exposure evaluation value detected by the exposure evaluation value detector to control exposure of the image sensing apparatus, wherein the exposure controller determines a subject luminance for exposure setting based on the exposure evaluation value, and controls the exposure in such a manner that an output of the image sensor corresponding to the subject luminance for exposure setting is obtained from the linear characteristic area of the image sensor.

摘要翻译： 图像传感装置包括：图像传感器，其生成与入射光量相当的电信号，并且具有光电转换特性，该光电转换特性包括线性变换后的电信号输出的线性特征区域， 入射光和相对于入射光的对数转换后输出电信号的对数特征区域; 曝光评估值检测器，其基于感测被摄体的图像而从被摄体获取的亮度信息来检测曝光评估值; 以及曝光控制器，其基于由曝光评估值检测器检测到的曝光评估值来获取用于曝光的设定值，以控制摄像设备的曝光，其中曝光控制器基于曝光评估值确定曝光设置的被摄体亮度 并且以这样的方式控制曝光，使得从图像传感器的线性特征区域获得与用于曝光设置的被摄体亮度相对应的图像传感器的输出。

公开(公告)号：US07508422B2

公开(公告)日：2009-03-24

申请号：US11052327

申请日：2005-02-07

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N5/235

CPC分类号： H04N5/35509

摘要： An image sensing apparatus is provided with an image sensor having a photoelectric conversion characteristic comprised of a linear characteristic area where an electrical signal is outputted after being linearly converted in relation to an amount of an incident light and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of the incident light. An evaluation value detector of a signal processing unit detects evaluation values concerning an image sensing control from each of the linear characteristic area and the logarithmic characteristic area upon picking up an image of a subject based on pieces of subject luminance information in the respective areas. A central control unit (image sensing controller) carries out the image sensing control based on the evaluation values corresponding to the respective areas detected by the evaluation value detector.

摘要翻译： 一种图像传感装置具备：具有光电转换特性的图像传感器，该光电转换特性包括线性特征区域，其中电信号相对于入射光量的线性变换和电信号为 在相对于入射光的量进行对数转换之后输出。 信号处理单元的评估值检测器基于各个区域中的被摄体亮度信息来检测对象的图像，从线性特征区域和对数特征区域中的每一个检测关于图像感测控制的评价值。 中央控制单元（图像感测控制器）基于与由评估值检测器检测到的各个区域对应的评估值来执行图像感测控制。

公开(公告)号：US20050264684A1

公开(公告)日：2005-12-01

申请号：US11138247

申请日：2005-05-26

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H01L27/146 ,  H04N5/235 ,  H04N5/238 ,  H04N5/243 ,  H04N5/335 ,  H04N5/353 ,  H04N5/355 ,  H04N5/369 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/376 ,  H04N101/00

CPC分类号： H04N5/2351 ,  H04N5/2355 ,  H04N5/243

摘要： An image sensing apparatus includes: an image sensor which generates an electrical signal commensurate with an amount of incident light, and has a photoelectric conversion characteristic comprised of a linear characteristic area where the electrical signal is outputted after being linearly converted in relation to the amount of incident light, and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of incident light; an exposure evaluation value detector which detects an exposure evaluation value based on luminance information acquired from a subject in sensing an image of the subject; and an exposure controller which acquires a setting value for exposure based on the exposure evaluation value detected by the exposure evaluation value detector to control exposure of the image sensing apparatus, wherein the exposure controller determines a subject luminance for exposure setting based on the exposure evaluation value, and controls the exposure in such a manner that an output of the image sensor corresponding to the subject luminance for exposure setting is obtained from the linear characteristic area of the image sensor.

摘要翻译： 图像传感装置包括：图像传感器，其生成与入射光量相当的电信号，并且具有光电转换特性，该光电转换特性包括线性变换后的电信号输出的线性特征区域， 入射光和相对于入射光的对数转换后输出电信号的对数特征区域; 曝光评估值检测器，其基于感测被摄体的图像而从被摄体获取的亮度信息来检测曝光评估值; 以及曝光控制器，其基于由曝光评估值检测器检测到的曝光评估值来获取用于曝光的设定值，以控制摄像设备的曝光，其中曝光控制器基于曝光评估值确定曝光设置的被摄体亮度 并且以这样的方式控制曝光，使得从图像传感器的线性特征区域获得与用于曝光设置的被摄体亮度相对应的图像传感器的输出。

公开(公告)号：US20120268632A1

公开(公告)日：2012-10-25

申请号：US13523403

申请日：2012-06-14

申请人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

发明人： Koichi Kamon ,  Kazuchika Sato ,  Jun Minakuti

IPC分类号： H04N5/335

CPC分类号： H04N5/2351 ,  H04N5/2355 ,  H04N5/243

摘要： An image sensing apparatus includes: an image sensor which generates an electrical signal commensurate with an amount of incident light, and has a photoelectric conversion characteristic comprised of a linear characteristic area where the electrical signal is outputted after being linearly converted in relation to the amount of incident light, and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of incident light; an exposure evaluation value detector which detects an exposure evaluation value based on luminance information acquired from a subject in sensing an image of the subject; and an exposure controller which acquires a setting value for exposure based on the exposure evaluation value detected by the exposure evaluation value detector to control exposure of the image sensing apparatus, wherein the exposure controller determines a subject luminance for exposure setting based on the exposure evaluation value, and controls the exposure in such a manner that an output of the image sensor corresponding to the subject luminance for exposure setting is obtained from the linear characteristic area of the image sensor.

摘要翻译： 图像传感装置包括：图像传感器，其生成与入射光量相当的电信号，并且具有光电转换特性，该光电转换特性包括线性变换后的电信号输出的线性特征区域， 入射光和相对于入射光的对数转换后输出电信号的对数特征区域; 曝光评估值检测器，其基于感测被摄体的图像而从被摄体获取的亮度信息来检测曝光评估值; 以及曝光控制器，其基于由曝光评估值检测器检测到的曝光评估值来获取用于曝光的设定值，以控制摄像设备的曝光，其中曝光控制器基于曝光评估值确定曝光设置的被摄体亮度 并且以这样的方式控制曝光，使得从图像传感器的线性特征区域获得与用于曝光设置的被摄体亮度相对应的图像传感器的输出。