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1. 发明授权

US6067109A Image reading method 失效
标题翻译：图像阅读方法
公开(公告)号：US6067109A
公开(公告)日：2000-05-23
申请号：US671075
申请日：1996-06-27
申请人： Keiichi Yamana
发明人： Keiichi Yamana
IPC分类号： G03C1/485 , G03C5/08 , G03C5/50 , H04N1/00 , H04N1/40 , H04N1/46 , H04N1/48 , H04N1/60 , H04N1/70
CPC分类号： H04N1/6094
摘要： An image reading method which can achieve highly accurate image reading with no color balance lost regardless of the type of recording media, that is, whether a film is a negative film or a reversal film, and thus is able to obtain in a stable manner a reproduced image of higher quality having excellent color balance and density balance. A reading light beam is irradiated on a transparent-type original, the transmitted light of the transparent-type original is separated into the three primary colors and is read by means of an photoelectric transducer device. If the transparent-type original is a negative film, then the adjustments of the transmitted light reading by the photoelectric transducer device are made respectively in the three primary colors independently of one another and, if the transparent-type original is a reversal film, then the adjustments of the transmitted light reading by the photoelectric transducer device are made uniformly in all of the three primary colors.
摘要翻译：不管记录介质的种类如何，即使是薄膜还是反转膜，都能够实现无色平衡的高精度图像读取的图像读取方法，从而能够稳定地获得更高品质的再现图像具有优异的色平衡和密度平衡。将读取光束照射在透明型原稿上，将透明型原稿的透射光分离成三原色，并通过光电传感器装置读取。如果透明型原稿是负片，则由光电传感器装置的透射光读数的调整分别以三原色彼此独立地制成，并且如果透明型原稿是反转膜，则通过光电传感器装置的透射光读数的调整在所有三原色中均匀地进行。

2. 发明授权

US5255083A Digital color correction system and method 失效
标题翻译：数字色彩校正系统及方法
公开(公告)号：US5255083A
公开(公告)日：1993-10-19
申请号：US710704
申请日：1991-06-05
申请人： Patrice J. Capitant , Vinson R. Perry , David C. Collier , John Carlucci
发明人： Patrice J. Capitant , Vinson R. Perry , David C. Collier , John Carlucci
IPC分类号： G03B27/73 , H04N1/407 , H04N1/60 , H04N1/64 , H04N5/253 , H04N5/262 , H04N9/11 , H04N9/64 , H04N1/70
CPC分类号： H04N1/6094 , H04N1/407 , H04N1/64 , H04N5/253 , H04N5/262 , H04N9/64 , H04N9/11
摘要： A digital color correction system and method provide for color correction in a film-to-video signal conversion system. Film color correction is done by correcting incoming digitized film color signals (e.g. red, green and blue) according to film color correction parameters which represent film characteristics, such as film speed, gamma, and minimum and maximum film dye density. The film color correction parameters are used to sensitometrically convert the film color signals to video color signals according to a sensitometric film model, such as the Hurter-Driffield ("HD") characteristic curve. Video color correction is then performed upon the corrected film color signals according to video color correction parameters which represent video signal characteristics, such as hue and saturation, as well as a video color standard model, such as SMPTE 240M. Alternatively, separate signals representing the film or video color correction parameters can be encoded as separate data into the corrected or uncorrected color signals. This color correction or color correction parameter encoding can be done on a field-by-field, frame-by-frame or scene-by-scene basis, so that each resulting video field, frame or scene, respectively, is appropriately color corrected or contains its own specific color correction information.
摘要翻译：一种数字色彩校正系统和方法在电影到视频信号转换系统中提供色彩校正。通过根据胶片颜色校正参数校正输入的数字化胶片颜色信号（例如红色，绿色和蓝色）来完成胶片颜色校正，所述胶片颜色校正参数表示胶片特性，例如胶片速度，γ，以及最小和最大胶片染料密度。胶片颜色校正参数用于根据感光膜模型（例如Hurter-Driffield（“HD”）特性曲线将胶片颜色信号对视频颜色信号进行感光度转换。然后根据表示诸如色调和饱和度的视频信号特性的视频颜色校正参数以及诸如SMPTE 240M的视频颜色标准模型，对经校正的胶片彩色信号执行视频颜色校正。或者，表示胶片或视频颜色校正参数的单独信号可以被编码为单独的数据到校正或未校正的颜色信号。该颜色校正或颜色校正参数编码可以逐场地，逐帧地或逐帧地进行，使得分别得到的每个结果视频场，帧或场景被适当地颜色校正，或者包含其自己的具体颜色校正信息。

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