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1.发明授权Picture signal processing apparatus, color video camera and picture signal processing method 有权图像信号处理装置，彩色摄像机和图像信号处理方法公开(公告)号：US06515700B2
公开(公告)日：2003-02-04
申请号：US09225791
申请日：1999-01-05
申请人： Hitoshi Nakamura , Seiji Kawa , Fumihiko Sudo
发明人： Hitoshi Nakamura , Seiji Kawa , Fumihiko Sudo
IPC分类号： H04N964
摘要： Of three-color signals R′, G′ and B′, obtained as output signals of multipliers 156R, 156G and 156B, designed to effectuate luminance compression of the three-color signals R, G and B sent to input terminals 151R, 151G and 151B by multiplying the signals R, G and B with a coefficient k, in such a manner as to maintain saturation and color hue of the three-color signals R, G and B, only the saturation of color video signals represented by the three-color signals R′, G′ and B′ is compressed by first saturation compression circuits 160R, 160G and 160B so that the signal level of the signal of the three-color signals R′, G′ and B′ having the highest signal level will be the clip level. Of the three prime color signals R″, G″ and B″ obtained as output signals of the first saturation compression circuits 160R, 160G and 160B, only the saturation of the signals R″, G″ and B″ is compressed, in a state in which the luminance and the color hue of the signals R″, G″ and B″ are maintained, in order to obtain three prime color signals R*, G* and B* the high luminance portion of which has only saturation changed.
摘要翻译： 获得作为乘法器156R，156G和156B的输出信号的三色信号R'，G'和B'被设计为实现发送到输入端151R，151G的三色信号R，G和B的亮度压缩， 151B通过将信号R，G和B与系数k相乘，以保持三色信号R，G和B的饱和度和色调，只有由三色信号R，G和B表示的彩色视频信号的饱和度， 彩色信号R'，G'和B'由第一饱和压缩电路160R，160G和160B压缩，使得具有最高信号电平的三色信号R'，G'和B'的信号的信号电平将 作为剪辑级别。 在作为第一饱和压缩电路160R，160G和160B的输出信号获得的三个素色信号R“，G”和B“中，只有信号R”，G“和B” 在维持信号R“，G”和B“的亮度和色调的状态下被压缩，以便获得三个素色信号R *，G *和B *，高亮度 其部分仅饱和度改变。
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2.发明授权
公开(公告)号：US6002796A
公开(公告)日：1999-12-14
申请号：US574520
申请日：1995-12-19
申请人： Seiji Kawa , Fumihiko Sudo , Taku Kihara
发明人： Seiji Kawa , Fumihiko Sudo , Taku Kihara
CPC分类号： H04N5/20
摘要： Video signal compression apparatus for analyzing an input video signal to determine the distribution of signal levels and compressing the input signal as a function of the distribution to produce an output video signal.
摘要翻译： 视频信号压缩装置，用于分析输入视频信号以确定信号电平的分布并根据分布压缩输入信号以产生输出视频信号。
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公开(公告)号：US07576782B2
公开(公告)日：2009-08-18
申请号：US10892635
申请日：2004-07-16
CPC分类号： H04N5/77 , H04N5/23203 , H04N5/23245 , H04N5/23293 , H04N5/262 , H04N5/781 , H04N5/85 , H04N7/0105
摘要： An image signal generator generates an imaging signal having a frame rate that is controlled to be variable. A frame rate converter generates a monitor image signal. Upon receiving communication information from an external source, a controller controls the operations of the image signal generator and the frame rate converter on the basis of the communication information. When an instruction to specify the frame rate of the monitor image signal is given from a user interface, the controller controls the frame rate converter to generate a monitor image signal having a specified frame rate by giving priority to this instruction over the communication information.
摘要翻译： 图像信号发生器生成具有被控制为可变的帧速率的成像信号。 帧速率转换器产生监视图像信号。 在从外部源接收到通信信息时，控制器基于通信信息控制图像信号发生器和帧速率转换器的操作。 当从用户接口给出指定监视图像信号的帧速率的指令时，控制器通过对通信信息优先指定该指令来控制帧速率转换器以产生具有指定帧率的监视图像信号。
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4.发明申请Video-signal-processing device, imaging apparatus using the same, and method for processing video signal 有权视频信号处理装置，使用其的成像装置以及视频信号的处理方法公开(公告)号：US20070046793A1
公开(公告)日：2007-03-01
申请号：US11511487
申请日：2006-08-29
申请人： Fumihiko Sudo
发明人： Fumihiko Sudo
IPC分类号： H04N9/64
CPC分类号： H04N9/68
摘要： A video-signal-processing device has luminance conversion section that performs level compression on three input primary-color signals of a color video signal at a same luminance adjustment compression ratio with a hue and a saturation of the color video signal being kept constant, thereby generating three compressed primary-color signals. The device also has saturation conversion section that performs level conversion on the three compressed primary-color signals by using a saturation compression ratio if a maximum level of at least one of the three compressed primary-color signals exceeds a first level. The saturation conversion section sets the saturation compression ratio by using a minimum level one of the three compressed primary-color signals.
摘要翻译： 视频信号处理装置具有亮度转换部分，以相同的亮度调整压缩比对彩色视频信号的三个输入原色信号进行电平压缩，色彩和彩色视频信号的饱和度保持恒定，从而 产生三个压缩的原色信号。 该装置还具有饱和转换部分，如果三个压缩原色信号中的至少一个的最大电平超过第一电平，则通过使用饱和压缩比对三个压缩的原色信号执行电平转换。 饱和转换部分通过使用三个压缩的原色信号中的最小级别1来设置饱和压缩比。
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公开(公告)号：US20050046701A1
公开(公告)日：2005-03-03
申请号：US10891858
申请日：2004-07-15
CPC分类号： H04N5/2621 , H04N5/262
摘要： A preprocessor performs a signal processing operation by using an image signal DVa generated by picking up a subject image. A frame adder adds frames of an image signal DVb generated by the preprocessor so as to generate an image signal DVc with a changed frame rate. When changing the setting of the signal processing operation of the preprocessor, the signal processing operation is restarted with the new setting at the start or at the end of a frame addition period (in units of frame addition periods) of the frame adder based on a determination signal indicating the frame addition period.
摘要翻译： 预处理器通过使用通过拾取被摄体图像而产生的图像信号DVa执行信号处理操作。 帧加法器将由预处理器生成的图像信号DVb的帧相加，以便产生具有改变的帧速率的图像信号DVc。 当改变预处理器的信号处理操作的设置时，信号处理操作在帧加法器的帧相加周期（以帧相加周期为单位）的开始或结束时基于a 指示帧添加周期的确定信号。
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公开(公告)号：US07808529B2
公开(公告)日：2010-10-05
申请号：US10891858
申请日：2004-07-15
CPC分类号： H04N5/2621 , H04N5/262
摘要： A preprocessor performs a signal processing operation by using an image signal DVa generated by picking up a subject image. A frame adder adds frames of an image signal DVb generated by the preprocessor so as to generate an image signal DVc with a changed frame rate. When changing the setting of the signal processing operation of the preprocessor, the signal processing operation is restarted with the new setting at the start or at the end of a frame addition period (in units of frame addition periods) of the frame adder based on a determination signal indicating the frame addition period.
摘要翻译： 预处理器通过使用通过拾取被摄体图像而产生的图像信号DVa执行信号处理操作。 帧加法器将由预处理器生成的图像信号DVb的帧相加，以便产生具有改变的帧速率的图像信号DVc。 当改变预处理器的信号处理操作的设置时，信号处理操作在帧加法器的帧相加周期（以帧相加周期为单位）的开始或结束时基于a 指示帧添加周期的确定信号。
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公开(公告)号：US06724423B1
公开(公告)日：2004-04-20
申请号：US08667459
申请日：1996-06-21
申请人： Fumihiko Sudo
发明人： Fumihiko Sudo
IPC分类号： H04N973
CPC分类号： H04N9/73 , H04N5/232 , H04N9/64 , H04N17/002
摘要： A video camera system capable of matching colors between configured video cameras by effectively reducing color differences therebetween. A red, a green and a blue signal from imaging devices are amplified by preamplifiers and video amplifiers before being fed to a color matching circuit. The color matching circuit performs color matching in accordance with the levels of the red, green and blue signals using variables of gains and DC offset values. The gains and DC offset values are determined by the color matching circuit executing predetermined operation expressions. With a plurality of colors imaged in advance by the video cameras to be matched in color with a reference video camera, necessary coefficients of the operation expressions are obtained by use of the level measurements (tristimulus values) of the red, green and blue signals from an integrating circuit of each camera. Executing the operation expressions thus obtained allows the matching circuit to absorb the color differences between the reference video camera on the one hand, and the video camera to be matched in color therewith on the other hand.
摘要翻译： 一种摄像机系统，能够通过有效地减少配置的摄像机之间的色差来匹配配置的摄像机之间的颜色。 来自成像装置的红色，绿色和蓝色信号在被馈送到颜色匹配电路之前由前置放大器和视频放大器放大。 颜色匹配电路使用增益和DC偏移值的变量根据红色，绿色和蓝色信号的电平来执行色彩匹配。 增益和DC偏移值由执行预定操作表达式的颜色匹配电路确定。 通过预先通过摄像机成像以便与参考摄像机进行颜色匹配的多种颜色，通过使用红色，绿色和蓝色信号的电平测量（三刺激值）来获得操作表达式的必要系数， 每个摄像机的积分电路。 执行如此获得的操作表达式使得匹配电路能够吸收一方面参考摄像机与要与其颜色匹配的摄像机之间的色差。
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公开(公告)号：US5381175A
公开(公告)日：1995-01-10
申请号：US42769
申请日：1993-04-06
申请人： Fumihiko Sudo , Taku Kihara
发明人： Fumihiko Sudo , Taku Kihara
CPC分类号： H04N5/3728 , H04N5/367
摘要： A solid state image pickup apparatus comprises a solid state imager having a plurality of pixels and which outputs a signal corresponding to light incident thereon, a sample and hold circuit for sampling and holding analog output signals from respective pixels of the solid state imager in response to a sampling signal, a low-pass filter connected to the analog output of the sample and hold circuit for eliminating a high frequency component therefrom so as to output a filtered signal, an analog-to-digital converter for converting the filtered signal to a digital filtered signal, a memory for storing position data indicative of a position of a defective pixel, a circuit for stopping the supply of the sampling signal to the sample and hold circuit in response to the position data indicating a defective pixel so that the output signal from the defective pixel is replaced with the analog output signal from a pixel read immediately prior thereto, an interpolating circuit connected to the analog-to-digital converter for interpolating a digital signal corresponding to the position data indicating a defective pixel by using the digital signals corresponding to other pixels surrounding the defective pixel so as to generate an interpolated signal, and a switch for selectively outputting the digital filtered signal and the interpolated signal in accordance with the position data.
摘要翻译： 固体摄像装置包括具有多个像素的固态成像器，其输出对应于入射光的信号，采样和保持电路，用于对固态成像器的各个像素进行采样和保持模拟输出信号，以响应于 采样信号，连接到采样和保持电路的模拟输出的低通滤波器，用于从其中消除高频分量以便输出滤波后的信号;模数转换器，用于将滤波后的信号转换为数字 滤波信号，用于存储表示缺陷像素的位置的位置数据的存储器，用于响应于指示缺陷像素的位置数据停止向取样和保持电路提供采样信号的电路，使得来自 缺陷像素被来自紧邻其前面读取的像素的模拟输出信号替代，连接到ana的内插电路 对数数字转换器，用于通过使用与缺陷像素周围的其他像素相对应的数字信号来内插对应于指示缺陷像素的位置数据的数字信号，以产生内插信号;以及开关，用于选择性地输出数字滤波 信号和内插信号。
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9.发明申请FLICKER CORRECTING METHOD, FLICKER CORRECTING CIRCUIT, AND IMAGING DEVICE USING THEM 失效闪光校正方法，闪光校正电路和使用它们的成像装置公开(公告)号：US20090051782A1
公开(公告)日：2009-02-26
申请号：US11719104
申请日：2005-11-11
CPC分类号： H04N5/235 , H04N5/2357 , H04N7/0132
摘要： An arithmetic processing section executes an arithmetic process on a flicker correction signal output from a flicker correction signal outputting section and corresponding to the flicker component contained in a video signal of each of specific periods and the video signal of each of the specific periods to form a corrected video signal of the specific period corrected for the flicker component of the specific period for the video signal of each of the specific periods formed as a succession of specific periods and containing a flicker component as supplied from a video signal generating section in response to a correction error signal of each of the specific periods supplied from a correction error detecting section.
摘要翻译： 算术处理部分执行从闪烁校正信号输出部分输出的闪烁校正信号的运算处理，并对应于每个特定周期的视频信号中包含的闪烁分量和每个特定周期的视频信号，以形成 针对每个特定周期的视频信号的特定周期的闪烁分量校正的特定周期的校正视频信号，其形成为特定周期的一系列，并且包含响应于视频信号产生部分从视频信号产生部分提供的闪烁分量 从校正误差检测部分提供的每个特定周期的校正误差信号。
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公开(公告)号：US07456865B2
公开(公告)日：2008-11-25
申请号：US10472613
申请日：2003-01-22
IPC分类号： H04N5/232
CPC分类号： H04N5/2355 , H04N5/20 , H04N5/23293 , H04N5/2625 , H04N7/01 , H04N7/0105
摘要： An image shooting unit 21 generates an image signal Spa having an image shooting frame rate. A frame addition unit 41 performs frame addition on the image signal DVb having the image shooting frame rate. Control unit 61 controls drive unit 71 and the frame addition unit 41 based on a frame rate setting signal RSF from operation unit 62, and controls a variation of the image shooting frame rate in image shooting unit 21 and/or a switch of the number of additive frames in the frame addition unit 41, thus allowing an image signal DVj having a desired frame rate to be output from the frame addition unit 41. Thus, increasing the additive frame in number even without decreasing the image shooting frame rate at a low-speed shooting of the image allows such an image signal DVj shot at the low speed to be obtained.
摘要翻译： 图像拍摄单元21生成具有图像拍摄帧率的图像信号Spa。 帧添加单元41对具有图像拍摄帧率的图像信号DVb执行帧添加。 控制单元61基于来自操作单元62的帧速设置信号RSF控制驱动单元71和帧添加单元41，并且控制图像拍摄单元21中的图像拍摄帧速率的变化和/或数量的切换 帧添加单元41中的附加帧，从而允许从帧添加单元41输出具有所需帧速率的图像信号DVj。 因此，即使不降低图像的低速拍摄下的图像拍摄帧速率，即使在低速拍摄的图像信号DVj也能够获得，也可以增加附加帧数。
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