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    • 34. 发明授权
    • Method and system for extracting a specific image
    • 提取特定图像的方法和系统
    • US5293255A
    • 1994-03-08
    • US798892
    • 1991-11-27
    • Akihito NishizawaTakuya ImaideMayuko Yamamoto
    • Akihito NishizawaTakuya ImaideMayuko Yamamoto
    • H04N7/18G06T7/00G06T7/20H04N1/387H04N5/262H04N9/74
    • H04N9/74H04N1/3872H04N5/262H04N5/2621
    • The present invention provides for designation of a prescribed area within an image as an initial extracting area, extraction of an area which fulfills the conditions determined according to the characteristics of the specific image from an image signal of an image, generation of comparative area signal presenting an area slightly larger than the extracted area which is necessary for fulfilling the conditions from the area extracting signal of the designated initial extracting area, comparison of the comparative area signal that has been generated with the candidate area signal through which the initial extracting signal of the initial extracting area is converted into an area extracting signal, and extraction of an image signal within the area determined by the new area extracting signal. As a result, the image which fulfills the conditions other than the specific image is eliminated as the extracted area that has been set as an initial extracting area changes to coincide with the specific image and only the object image which fulfills the conditions is extracted. Furthermore, since the area extracting signal is stored in a memory and used for generation of the next area extracting signal, the extracted area will follow the changes in image area owing to increase in size or movement of a specific object, thereby making it possible to extract a specific image in realtime.
    • 本发明提供将图像内的规定区域指定为初始提取区域,从图像的图像信号中提取满足根据特定图像的特性确定的条件的区域,生成比较区域信号呈现 比从指定的初始提取区域的区域提取信号来满足条件所需的提取区域稍大的区域,将生成的比较区域信号与候选区域信号进行比较,通过该候选区域信号,初始提取信号 将初始提取区域转换为区域提取信号,并提取由新区域提取信号确定的区域内的图像信号。 结果,当被设置为初始提取区域的提取区域改变以与特定图像一致时,除去满足特定图像之外的条件的图像,并且仅提取满足条件的对象图像。 此外,由于区域提取信号被存储在存储器中并用于生成下一个区域提取信号,所以提取的区域将由于特定对象的尺寸或移动的增加而跟随图像区域的改变,从而使得可以 实时提取特定图像。
    • 35. 发明授权
    • Color signal processor for a video camera
    • 用于摄像机的彩色信号处理器
    • US5121193A
    • 1992-06-09
    • US419220
    • 1989-10-10
    • Ryuji NishimuraMasaru NodaTakuya Imaide
    • Ryuji NishimuraMasaru NodaTakuya Imaide
    • H04N9/07H04N9/04H04N9/64
    • H04N9/045
    • A signal processor for a video camera, comprising a solid-state image sensor having a light sensitive part with a two-dimensional array of a plurality of pixels corresponding to first, second, third and fourth color signals, and outputting line sequential signals where first point sequential signals composed of the first and second color signals and second point sequential signals composed of the third and fourth color signals are alternately repeated during horizontal scan periods in a television system; means for individually separating the first, second, third and fourth signals included in the line sequential output signals of the solid-state image sensor, and then outputting the separated signals per horizontal scan period; and means for producing three primary color signals R, G, B by calculating the first, second, third and fourth color signals.
    • 一种用于摄像机的信号处理器,包括具有对应于第一,第二,第三和第四颜色信号的多个像素的二维阵列的光敏部分的固态图像传感器,并且输出线序列信号,其中第一 在电视系统的水平扫描周期期间交替地重复由第一和第二颜色信号组成的点序顺序信号和由第三和第四颜色信号组成的第二点序列信号; 用于单独分离包括在固态图像传感器的行顺序输出信号中的第一,第二,第三和第四信号的装置,然后每个水平扫描周期输出分离的信号; 以及用于通过计算第一,第二,第三和第四颜色信号来产生三原色信号R,G,B的装置。
    • 36. 发明授权
    • Image pick-up apparatus
    • 摄像装置
    • US4959727A
    • 1990-09-25
    • US360408
    • 1989-06-02
    • Takuya ImaideToshiro Kinugasa
    • Takuya ImaideToshiro Kinugasa
    • H04N5/225H04N5/235H04N5/335H04N5/341H04N5/353H04N5/357H04N5/369H04N5/374H04N5/378
    • H04N5/2352
    • A video camera comprises an image sensor for converting a projected light image into an electrical signal, an exposure time setting circuit for setting the exposure time for the image sensor to either one of a normal exposure time and an exposure time longer than the normal exposure time, and an automatic gain control circuit including a variable gain amplifier for amplifying a video signal read out from the image sensor and a detector for detecting an output signal level of the variable gain amplifier and supplying a gain control signal based on the result of detection to the variable gain amplifier. The automatic gain control circuit is controlled so as to make the response speed of the automatic gain control circuit, when the exposure time is set to an exposure time longer than the normal exposure time, lower than that preset when the exposure time is set to the normal exposure time.
    • 视频摄像机包括用于将投影光图像转换为电信号的图像传感器,用于将图像传感器的曝光时间设置为正常曝光时间和比正常曝光时间长的曝光时间之一的曝光时间设置电路 以及自动增益控制电路,包括用于放大从图像传感器读出的视频信号的可变增益放大器和用于检测可变增益放大器的输出信号电平的检测器,并且基于检测结果提供增益控制信号 可变增益放大器。 控制自动增益控制电路,以便当将曝光时间设定为比正常曝光时间长的曝光时间时,使自动增益控制电路的响应速度低于曝光时间设定为 正常曝光时间。