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1. 发明授权

US07248289B2 Image-pickup signal processor and method of detecting flicker 有权
标题翻译：摄像信号处理器和闪烁检测方法
公开(公告)号：US07248289B2
公开(公告)日：2007-07-24
申请号：US10294376
申请日：2002-11-14
申请人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
发明人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
IPC分类号： H04N9/73
CPC分类号： H04N5/2357 , H04N5/235
摘要： A plurality of flicker detection frames are formed by dividing an image into a plurality of frames. A flicker detection circuit performs detection of luminance data for each of the flicker detection frames. The differences between the luminance data of the preceding frame and the current frame, and between the luminance data of the current frame and the following frame with respect to each of the flicker detection frames are taken, a flicker component is extracted, and the flicker frequency is calculated, by a flicker frequency determination program in a microcomputer. Then, the space between the flicker detection frames in which a crest or trough of the extracted flicker component appears is measured, and the results are converted into the flicker frequency. The frame rate of the image pickup signals is controlled so as not to be synchronized with the flicker frequency.
摘要翻译：通过将图像分割成多个帧来形成多个闪烁检测帧。闪烁检测电路对每个闪烁检测帧执行亮度数据的检测。拍摄前一帧的亮度数据与当前帧之间以及当前帧的亮度数据与随后的每帧闪烁检测帧之间的差异，提取闪烁分量，并且闪烁频率通过微计算机中的闪烁频率确定程序来计算。然后，测量其中出现提取的闪烁分量的波峰或波谷的闪烁检测帧之间的空间，并将结果转换为闪烁频率。控制图像拾取信号的帧速率以便不与闪烁频率同步。

2. 发明授权

US08040393B2 Image-pickup signal processor and method of detecting flicker 有权
标题翻译：摄像信号处理器和闪烁检测方法
公开(公告)号：US08040393B2
公开(公告)日：2011-10-18
申请号：US11725283
申请日：2007-03-19
申请人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
发明人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
IPC分类号： H04N9/73
CPC分类号： H04N5/2357 , H04N5/235
摘要： A plurality of flicker detection frames are formed by dividing an image into a plurality of frames. A flicker detection circuit performs detection of luminance data for each of the flicker detection frames. The differences between the luminance data of the preceding frame and the current frame, and between the luminance data of the current frame and the following frame with respect to each of the flicker detection frames are taken, a flicker component is extracted, and the flicker frequency is calculated, by a flicker frequency determination program in a microcomputer. Then, the space between the flicker detection frames in which a crest or trough of the extracted flicker component appears is measured, and the results are converted into the flicker frequency. The frame rate of the image pickup signals is controlled so as not to be synchronized with the flicker frequency.
摘要翻译：通过将图像分割成多个帧来形成多个闪烁检测帧。闪烁检测电路对每个闪烁检测帧执行亮度数据的检测。拍摄前一帧的亮度数据与当前帧之间以及当前帧的亮度数据与随后的每帧闪烁检测帧之间的差异，提取闪烁分量，并且闪烁频率通过微计算机中的闪烁频率确定程序来计算。然后，测量其中出现提取的闪烁分量的波峰或波谷的闪烁检测帧之间的空间，并将结果转换为闪烁频率。控制图像拾取信号的帧速率以便不与闪烁频率同步。

3. 发明申请

US20070182831A1 Image-pickup signal processor and method of detecting flicker 有权
公开(公告)号：US20070182831A1
公开(公告)日：2007-08-09
申请号：US11725283
申请日：2007-03-19
申请人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
发明人： Katsumi Katoh , Eiji Machishima , Toshiaki Kodake
IPC分类号： H04N9/73
CPC分类号： H04N5/2357 , H04N5/235
摘要： A plurality of flicker detection frames are formed by dividing an image into a plurality of frames. A flicker detection circuit performs detection of luminance data for each of the flicker detection frames. The differences between the luminance data of the preceding frame and the current frame, and between the luminance data of the current frame and the following frame with respect to each of the flicker detection frames are taken, a flicker component is extracted, and the flicker frequency is calculated, by a flicker frequency determination program in a microcomputer. Then, the space between the flicker detection frames in which a crest or trough of the extracted flicker component appears is measured, and the results are converted into the flicker frequency. The frame rate of the image pickup signals is controlled so as not to be synchronized with the flicker frequency.

4. 发明授权

US5253047A Color CCD imager having a system for preventing reproducibility degradation of chromatic colors 失效
标题翻译：彩色CCD成像器具有防止彩色再现性劣化的系统
公开(公告)号：US5253047A
公开(公告)日：1993-10-12
申请号：US760503
申请日：1991-09-16
申请人： Eiji Machishima
发明人： Eiji Machishima
IPC分类号： H04N9/04 , H04N9/07 , H04N9/67 , H04N9/73
CPC分类号： H04N9/735
摘要： A color video camera according to the present invention includes a color temperature detector for detecting a color temperature of a video source and a primary color separator, wherein matrix coefficients of the primary color separator are controlled in accordance with an output of the color temperature detector in such a manner that, for example, when the color temperature of a video source is low, that is, the color of a video source is reddish, red and blue components of the video source are corrected to be weakened and intensified respectively. On the contrary, when the color temperature of a video source is high, that is, the color of a video source is bluish, the red and blue components of the video source are corrected to be intensified and weakened respectively, whereby the degradation of the color reproducibility of the chromatic colors due to the change in the color temperature can be prevented.

5. 发明授权

US08115826B2 Image processing apparatus, imaging apparatus, method and program 失效
标题翻译：图像处理装置，成像装置，方法和程序
公开(公告)号：US08115826B2
公开(公告)日：2012-02-14
申请号：US12351003
申请日：2009-01-09
申请人： Eiji Machishima , Takayuki Okuno , Takahiro Kaneda
发明人： Eiji Machishima , Takayuki Okuno , Takahiro Kaneda
IPC分类号： H04N5/235 , H04N9/73 , G06K9/00
CPC分类号： H04N5/20 , H04N5/232 , H04N9/67
摘要： An image processing apparatus includes a tone conversion section configured to execute luminance tone compression on an entered image by use of a predetermined conversion curve; a linear matrix processing block configured to execute correction based on matrix operation on an image entered via the tone conversion section; and a hue and saturation adjustment block configured to execute hue and saturation conversion processing based on a set parameter on an image entered via the linear matrix processing block. The apparatus further includes a brightness decision block configured to determine whether brightness of the image to be processed is lower than a certain brightness level; and a control block configured to control a combination of the operations to be processed by the processing section and blocks on the basis of setting of a tone conversion function of the tone conversion section and a decision result obtained by the brightness decision block.
摘要翻译：一种图像处理装置，包括：色调转换部，被配置为通过使用预定的转换曲线对输入的图像执行亮度色调压缩; 线性矩阵处理块，被配置为基于经由所述色调转换部输入的图像的矩阵运算执行校正; 以及色调和饱和度调整块，被配置为基于经由线性矩阵处理块输入的图像上的设置参数来执行色调和饱和度转换处理。该装置还包括：亮度判定块，被配置为确定要处理的图像的亮度是否低于某一亮度级; 以及控制块，其被配置为基于所述色调转换部分的色调转换功能的设置和由所述亮度判定块获得的判定结果来控制由所述处理部件处理的操作和块的组合。

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