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1.发明授权Method of electronically improving the sharpness and contrast of a colored image for copying 失效电子提高彩色图像复制的清晰度和对比度的方法
公开(公告)号：US4812903A
公开(公告)日：1989-03-14
申请号：US85942
申请日：1987-08-14
IPC分类号： H04N1/04 , G06T1/00 , H04N1/409 , H04N1/46 , H04N1/48 , H04N1/60 , H04N9/68 , G03F3/08 , H04N9/64
CPC分类号： H04N1/6027
摘要： A colored original to be reproduced is scanned point-by-point in each of the three primary colors. The resulting imaging signals are processed to generate a luminance signal and a pair of chrominance signals. The luminance signal is branched into a high-pass filter channel and a low-pass filter channel. The high-pass portion of the luminance signal is amplified in accordance with a sublinear characteristic function which causes signals of small amplitude to be amplified to a greater degree than signals of large amplitude. The low-pass portion of the luminance signal is modified per a non-linear characteristic gradation function. The thus-modified high-pass and low-pass portions of the luminance signal are added to yield an enhanced luminance signal. The enhanced luminance signal is divided by the original luminance signal and each of the chrominance signals is multiplied by the resulting quotient. This automatially compensates for the changes in color saturation which accompany changes in brightness. After the multiplication, the chrominance signals are amplified in accordance with a sublinear characteristic function which causes signals of small amplitude to be amplified to a greater degree than signals of large amplitude. This characteristic function further has a form such that no additional ampification takes place beyond a predetermined threshold limit.
摘要翻译： 要再现的彩色原稿逐点扫描三种基色中的每一种。 所得到的成像信号被处理以产生亮度信号和一对色度信号。 亮度信号被分支为高通滤波器通道和低通滤波器通道。 亮度信号的高通部分根据使小幅度信号被放大到比较大幅度的信号更大程度的子线性特征函数被放大。 根据非线性特征灰度函数修改亮度信号的低通部分。 增加亮度信号的这样修正的高通部分和低通部分以产生增强的亮度信号。 增强的亮度信号被原始亮度信号除以，并且每个色度信号乘以所得到的商。 这会自动补偿颜色饱和度随着亮度变化的变化。 在相乘之后，色度信号根据使得小幅度信号被放大到比较大振幅的信号更大程度的子线性特征函数被放大。 该特征功能还具有这样的形式，使得不超过预定阈值极限进行额外的放大。
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2.发明授权Method of and apparatus for copying originals in which an image to be printed is evaluated by observing a corresponding low-resolution video image 失效通过观察相应的低分辨率视频图像来评估要打印的图像的原稿的复印方法和装置
公开(公告)号：US4825296A
公开(公告)日：1989-04-25
申请号：US85941
申请日：1987-08-14
CPC分类号： H04N1/32491 , H04N1/0044 , H04N1/40 , H04N2201/3287
摘要： An original to be copied is electrooptically scanned point-by-point. The resulting imaging signals are stored in a first memory and then forwarded to a first image processing unit where the signals are electronically corrected to enhance the image of the original. The corrected signals are loaded into a second memory. A portion of the corrected signals is recalled from the second memory and sent to a third memory. This portion of the corrected signals is then transmitted to a second image processing unit and thereafter converted into a low-resolution video image which can be inspected to determine image quality. If image quality is satisfactory, the contents of the second memory are sent to an exposure unit which prints a high-resolution image of the original on copy material. Imaging signals for a second original are loaded into the first memory as the contents of the second memory are recalled for printing. The second processing unit functions to adjust the video image so that it closely corresponds to the printed image of the original.
摘要翻译： 要复制的原件将逐点电子扫描。 所得到的成像信号被存储在第一存储器中，然后被转发到第一图像处理单元，其中信号被电子校正以增强原件的图像。 校正的信号被加载到第二存储器中。 校正信号的一部分从第二存储器被调用并被发送到第三存储器。 然后将该部分的校正信号发送到第二图像处理单元，然后转换成可以被检查以确定图像质量的低分辨率视频图像。 如果图像质量令人满意，则将第二存储器的内容发送到在复印材料上打印原稿的高分辨率图像的曝光单元。 当第二个存储器的内容被调用以进行打印时，将第二个原件的成像信号加载到第一个存储器中。 第二处理单元用于调整视频图像，使其与原稿的打印图像紧密对应。
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3.发明授权
公开(公告)号：US4825297A
公开(公告)日：1989-04-25
申请号：US085865
申请日：1987-08-14
CPC分类号： H04N1/4072 , H04N1/4092
摘要： The invention relates to a method and apparatus for electronic contrast valuation of two-dimensional transparent original images, in which the original images are electro-optically scanned by rows and columns. The image signals, corresponding to the image elements or pixels, and possibly needing correction, are subjected to frequency filtering, in which they are modified by a low-pass filter. The resulting low-pass signals are summed with corresponding high-pass signals obtained by subtraction of low-pass signals from the original image signals. The amplification factor for the high-pass signal is determined according to a non-linear transfer characteristic function K2, such that small signals corresponding to low image contrast are more greatly amplified (amplification S.sub.1) than are large signals corresponding to high image contrast (amplification S.sub.2), and that the low-pass signals are modified according to a non-linear gradation characteristic function K1 prior to the addition of the high-pass and low-pass signals.
摘要翻译： 本发明涉及一种用于二维透明原始图像的电子对比度估值的方法和装置，其中原始图像被行和列电光扫描。 对应于图像元素或像素的可能需要校正的图像信号进行频率滤波，其中它们被低通滤波器修改。 所得到的低通信号与通过从原始图像信号中减去低通信号而获得的相应的高通信号相加。 根据非线性传递特性函数K2确定高通信号的放大系数，使得对应于低图像对比度的小信号比对应于高图像对比度的大信号（放大）更大幅度地放大（放大S1） S2），并且在添加高通和低通信号之前，根据非线性灰度特征函数K1修改低通信号。
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4.发明授权Method of and apparatus for printing a color image using dichroic filters and a phosphor which strongly emits red light and weakly emits green and blue light 失效使用二向色滤光器和强烈发射红光并且弱发射绿色和蓝色光的荧光体来打印彩色图像的方法和装置
公开(公告)号：US4831436A
公开(公告)日：1989-05-16
申请号：US85859
申请日：1987-08-14
申请人： Klaus Birgmeir , Eduard Wagensonner
发明人： Klaus Birgmeir , Eduard Wagensonner
CPC分类号： H04N1/508 , G03B15/003
摘要： A colored original is scanned in each of the three primary colors red, green and blue to generate a series of electrical imaging signals for each such color. The signals are electronically processed and then sent to a cathode ray tube having a screen which is coated with a phosphor. The cathode ray tube successively converts the signals of the different series into optical images having the respective primary colors red, green and blue. The images are formed on the screen of the cathode ray tube thereby exciting the phosphor which luminesces to generate printing light. The differently colored images are successively printed on photographic color paper using the printing light emitted by the phosphor as well as respective red, green and blue filters. The phosphor is a rare earth phosphor which emits strongly in the red region of the spectrum and only weakly in the green and blue regions of the spectrum. The weak emissions in the green and blue regions of the spectrum are compensated for by using dichroic green and blue filters having high transmissivities. On the other hand, the strong emission of the phosphor in the red region of the spectrum is balanced by employing copy paper having relatively low sensitivity in this region. Such compensation and balancing make it possible to achieve equal or almost equal exposure times in the different primary colors.
摘要翻译： 在三原色红色，绿色和蓝色中的每一种中扫描彩色原稿以产生用于每种这样的颜色的一系列电成像信号。 信号被电子处理，然后发送到具有涂覆有荧光体的屏幕的阴极射线管。 阴极射线管将不同系列的信号连续地转换成具有红色，绿色和蓝色各自原色的光学图像。 图像形成在阴极射线管的屏幕上，从而激发发光的荧光体以产生印刷光。 使用由磷光体发射的印刷光以及相应的红色，绿色和蓝色滤光片，将不同颜色的图像依次印刷在照相彩色纸上。 磷光体是在光谱的红色区域强烈发射的稀土荧光体，并且在光谱的绿色和蓝色区域中仅发生弱光。 通过使用具有高透射率的二向色绿色和蓝色滤光片来补偿光谱的绿色和蓝色区域中的弱发射。 另一方面，通过在该区域使用具有较低灵敏度的复印纸来平衡光谱的红色区域中的荧光体的强烈发射。 这种补偿和平衡使得可以在不同的原色中实现相等或几乎相等的曝光时间。
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公开(公告)号：US4481530A
公开(公告)日：1984-11-06
申请号：US380014
申请日：1982-05-19
CPC分类号： H04N9/045
摘要： A color filtering device for a charge-coupled photoelectric converting device including a series of uniformly configured photoelectric converting elements which are sensitized by the filtering arrangement in the order of green, blue, green and red. The filtering arrangement includes a transparent filter carrier supporting a series of green, blue, green, red, blue, green, and so on, filtering elements. The active surface of each blue filtering element is equal to the active surface of the assigned photoelectric converting element. The green and red filtering elements are reduced in size in inverse proportion to the spectral sensitivity of the assigned photoelectric converting element. The resulting spacings between the elements are covered by an opaque masking layer, preferably of chromium.
摘要翻译： 一种用于电荷耦合光电转换装置的滤色装置，包括由绿色，蓝色，绿色和红色的顺序由滤光装置致敏的一系列均匀配置的光电转换元件。 滤波装置包括一个支持一系列绿色，蓝色，绿色，红色，蓝色，绿色等过滤元件的透明滤光片架。 每个蓝色滤光元件的有效表面等于所分配的光电转换元件的有效表面。 绿色和红色滤光元件的大小与所分配的光电转换元件的光谱灵敏度成反比。 元件之间产生的间距被不透明掩蔽层覆盖，优选为铬。
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公开(公告)号：US4558436A
公开(公告)日：1985-12-10
申请号：US424971
申请日：1982-09-27
IPC分类号： G11C11/401 , G06F3/153 , G09G5/00 , G09G5/39 , G09G5/393 , G09G5/395 , G09G5/397 , G09G5/399 , H04N5/44 , H04N5/907 , G11C11/40
摘要： The dynamic random access memory for use in a video circuit scanning video images according to the interlaced scanning method and reproducing the images on monitors of different resolutions is described. The RAM memory is composed of as many RAM segments as there are graduations of picture elements available, each segment including a plurality of RAM chips determined by the minimum read/write cycle time and by the scanning cycle time. To speed up the addressing during the switchover from the low-resolution to a high-resolution reception, the memory is organized into two halves, for storing respectively signals pertaining to odd-numbered and even-numbered picture lines. In each half, the vertical columns are subdivided into groups of lines pertaining to a single video data word. The adjoining pairs of columns store the signals pertaining to corresponding pairs of consecutive video lines which, in each pair, are arranged one below the other. In this manner the access time in the memory during the low-resolution is made faster.
摘要翻译： 描述了用于视频电路中的动态随机存取存储器，其根据隔行扫描方法扫描视频图像并再现不同分辨率的监视器上的图像。 RAM存储器由可用的像素刻度的RAM段组成，每个段包括由最小读/写周期时间和扫描周期时间确定的多个RAM芯片。 为了加快在从低分辨率切换到高分辨率接收的切换期间的寻址，存储器被分成两半，用于分别存储与奇数和偶数图像行有关的信号。 在每一半中，垂直列被细分为与单个视频数据字有关的一组行。 相邻的列对存储与相应的连续视频对对相关的信号，每对连续的视频行在每一对中彼此排列。 以这种方式，在低分辨率期间存储器中的访问时间变得更快。
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公开(公告)号：US4368489A
公开(公告)日：1983-01-11
申请号：US279038
申请日：1981-06-30
申请人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
发明人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
摘要： A galvanometric tilting-mirror scanning system shifts an image of an original projected onto a photodiode row in a direction transverse to such row. The tilting-mirror mechanism is provided with an oil-filled damping chamber, heated and maintained at stabilized temperature. The control voltage driving the tilting-mirror system includes a sawtooth component whose lower-slope flanks determine the mirror's scanning sweep; a negative pulse which effects mirror tiltback or flyback; a positive pulse which brakes the tiltback and accelerates the mirror back up to its forwards-direction scanning-sweep speed; and finally a corrective component. The corrective component has the form of a pulse which increases the slope of the sawtooth component's lower-slope flanks during a time interval extending beyond the system's vertical blanking allotment, to compensate the non-linearity in the motion of the mirror which would exist during its forwards-direction scanning-sweep interval in the absence of the corrective component.
摘要翻译： 电流倾斜镜扫描系统将横向于该行的方向将投影到原始光电二极管行上的图像移动到光电二极管行上。 倾斜镜机构设有充油阻尼室，加热并保持在稳定的温度。 驱动倾斜镜系统的控制电压包括锯齿波分量，其下斜侧面决定了镜的扫描扫描; 影响镜面倾斜或反射的负脉冲; 正向脉冲，其制动倾斜并加速反射镜向前扫描扫描速度; 最后是一个纠正组件。 校正组件具有脉冲的形式，其在延伸超出系统的垂直消隐分配的时间间隔内增加锯齿形部件的下斜面侧面的斜率，以补偿其在其内部存在的反射镜的运动中的非线性 在没有校正组件的情况下，前向扫描间隔。
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公开(公告)号：US5162645A
公开(公告)日：1992-11-10
申请号：US639837
申请日：1991-01-09
CPC分类号： H04N5/2253 , H04N1/03 , H04N2201/02493 , H04N2201/02497
摘要： A photographic scanner has a light source for illuminating a photographic original to be scanned and a sensor for detecting light which has passed through the original. The sensor has a single row of sensing cells, and the original is scanned by moving the sensor and the original relative to one another in a direction perpendicular to the row. An objective serves to focus light from the original on the sensing cells. Between the objective and the sensor is a protective glass sheet which overlies the sensor. A mask is interposed between the protective sheet and the sensor and has a slit in register with the row of sensing cells. The mask reduces the amount of scattered light reaching the sensing cells.
摘要翻译： 照相扫描器具有用于照射要扫描的照相原稿的光源和用于检测已经通过原稿的光的传感器。 传感器具有单行感测单元，并且通过在与行垂直的方向上相对于彼此移动传感器和原件来扫描原稿。 目的是将来自原稿的光聚焦在感测单元上。 在物镜和传感器之间是一个覆盖传感器的保护玻璃板。 掩模被置于保护片和传感器之间，并且具有与该行感测单元对准的狭缝。 掩模减少到达感测单元的散射光的数量。
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9.发明授权Projection and scanning system for producing video signals from motion picture film and control system used therein 失效用于从其中使用的电影胶片和控制系统产生视频信号的投影和扫描系统
公开(公告)号：US4296438A
公开(公告)日：1981-10-20
申请号：US136114
申请日：1980-03-31
申请人： Otto Stemme , Wolfgang Ruf , Eduard Wagensonner
发明人： Otto Stemme , Wolfgang Ruf , Eduard Wagensonner
CPC分类号： H04N3/38
摘要： A projection and scanning system for synchronization of photographic film projection with vertical sync pulses is taught. In this system, developed photographic film is advanced into a projection gate which is larger than the vertical height of an individual photographic frame. As a given film frame passes through the projection gate, it is repeatedly scanned by a mirror and the projected image reflected onto a charge-coupled image sensor which can be used to provide information for a video signal. Perforations on the film enable pulses to be developed at a photocell which are a function of film speed. By processing these pulses, along with vertical sync pulses and appropriate control waveforms, accurate scanning of the film can be achieved, enabling video signals resulting in flickerless television transmissions to be generated.
摘要翻译： 教导了用于摄影胶片投影与垂直同步脉冲同步的投影和扫描系统。 在该系统中，显影的照相胶片被推进到比单独的照相框的垂直高度大的投影门。 当给定的胶片框架通过投影门时，它被反射镜重复扫描，反射到电荷耦合图像传感器上的投影图像可以用于提供视频信号的信息。 胶片上的穿孔使得能够在光电池上产生脉冲，这是膜速度的函数。 通过处理这些脉冲以及垂直同步脉冲和适当的控制波形，可以实现胶片的精确扫描，使视频信号产生无闪烁的电视传输。
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公开(公告)号：US4280142A
公开(公告)日：1981-07-21
申请号：US104161
申请日：1979-12-17
申请人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
发明人： Otto Stemme , Eduard Wagensonner , Wolfgang Ruf
CPC分类号： H04N3/36
摘要： Light is directed from a source through a developed and travelling motion-picture film, to pass through a reproduction lens. This light is intercepted by a tilting mirror which reflects it back through the lens where it is intercepted by a stationary mirror and reflected onto an opto-electronic receiver for conversion into signals which permit showing of the film images on a television screen.
摘要翻译： 光通过显影和行进的动态影像从源引导，通过再生透镜。 该光被倾斜镜截取，该倾斜反射镜将其反射回透镜，其被静止镜截取，并被反射到光电接收器上，以转换为允许在电视屏幕上显示胶片图像的信号。
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