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21. 发明申请

WO1991004630A1 SYSTEM FOR SCANNING HALFTONED IMAGES 审中-公开
标题翻译：扫描HALFTONED图像的系统
公开(公告)号：WO1991004630A1
公开(公告)日：1991-04-04
申请号：PCT/US1990005257
申请日：1990-09-17
申请人： EASTMAN KODAK COMPANY
发明人： EASTMAN KODAK COMPANY , GREIVENKAMP, John, E., Jr.
IPC分类号： H04N01/40
CPC分类号： H04N1/40075
摘要： A process for scanning halftoned images with a sampled or electronic imaging system includes the steps of first optically low-pass filtering the scene, then oversampling the scene at a rate several times that required for display bandwidth, and finally putting the resulting data through an electronic or digital low-pass filter/resampling operation to reduce the system data load. The oversampling advantageously shifts unwanted aliasing between the halftone and sampling frequencies to frequencies above the display bandwidth, so that the aliasing may then be filtered out without affecting signals within the bandwidth of the display.

22. 发明申请

WO2006037071A1 SCREEN CONVERSION 审中-公开
标题翻译：屏幕转换
公开(公告)号：WO2006037071A1
公开(公告)日：2006-04-06
申请号：PCT/US2005/034900
申请日：2005-09-27
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , FISCHER, Mani , SHAKED, Doron , BREEN, Craig , JODRA, Rodolfo
发明人： FISCHER, Mani , SHAKED, Doron , BREEN, Craig , JODRA, Rodolfo
IPC分类号： H04N1/40
CPC分类号： H04N1/40075 , H04N1/40068
摘要： A method includes receiving screen information related to a picture element divided into a number of subunits of the picture element (610), and determining an amount of an ink to apply to a media at a location of the picture element in response to the information (612). The subunits of the picture element have a higher resolution than the resolution of a printing apparatus at which the printing element will be reproduced.
摘要翻译：一种方法包括：接收与划分成像素（610）的多个子单元的图像元素有关的屏幕信息，以及响应于该信息确定应用于图像元素位置处的介质的墨水量（ 612）。像素的子单元具有比打印元件将被再现的打印设备的分辨率更高的分辨率。

23. 发明申请

WO2005028197A2 VERFAHREN UND VORRICHTUNG ZUR PROZESSKONTROLLE BEIM DRUCKEN 审中-公开
标题翻译：方法和设备用于过程控制打印时
公开(公告)号：WO2005028197A2
公开(公告)日：2005-03-31
申请号：PCT/EP2004/009189
申请日：2004-08-17
申请人： MAN ROLAND DRUCKMASCHINEN AG , SCHUSTER, Alfons
发明人： SCHUSTER, Alfons
IPC分类号： B30B15/16
CPC分类号： B41F33/0027 , B41F33/0036 , G03F3/101 , H04N1/40075
摘要： Bei einem Verfahren zur Prozesskontrolle beim Drucken wird zur Bestimmung des Rastertonwertes R eines Ausschnitts eines drucktechnischen Substrates ein digitales Bild des Substratausschnitts aufgenommen, aus diesem Bild eine Häufigkeitsverteilung der Grauwerte der Bildpunkte ermittelt, aus dieser Häufigkeitsverteilung in deren mittlerem Bereich des Grauwertes ein Minimum der Häufigkeit als Grenzwert des Grauwertes bestimmt, und es werden zur Berechnung des Rastertonwertes R des Substrates die auf einer Seite dieses Grenzwertes liegenden Bildpunkte als gedeckt und die auf der anderen Seite liegenden Bildpunkte als frei gezählt. Zur Aufnahme von Bildern verschiedener drucktechnischer Substrate, an denen dieses Verfahren durchgeführt werden kann, dient eine Vorrichtung zur Bilderfassung mit einem elektronischen Kameramodul, einem vor diesem angeordneten Abbildungsobjektiv und einer Beleuchtungseinrichtung zur Beleuchtung des Substrates, wobei die Beleuchtungseinrichtung sowohl eine Hellfeld-Lichtquelle, als auch eine Dunkelfeld-Lichtquelle umfasst, die unabhängig voneinander aktivierbar und jeweils in ihrer Lichtintensität einstellbar sind.
摘要翻译：在用于在印刷R过程控制的方法的印刷工序中的基板，用于确定Rastertonwertes中的灰度值的最小频率作为中心区域被记录从该图像中，像素的灰度值的频度分布确定的基板除去部的数字图像，从该频率分布的部的灰度值的限制值确定，和计数位于比覆盖该阈值的一侧上的像素和位于另一侧的像素以可自由计算衬底的Rastertonwertes R上。用于记录到该方法中，可以进行不同的印刷基板的图像，是用于图像与电子照相机模块，设置在该摄像透镜的前方，捕捉的装置和用于照明基板的照明装置，其中所述照明设备都亮场光源，和暗场光源，其是可调节的彼此独立，并且可以在其光强度每种情况下被激活。

24. 发明申请

WO2004080059A1 INVERSE HALFTONING WITHOUT USING KNOWLEDGE OF HALFTONE DATA ORIGIN 审中-公开
标题翻译：没有使用HALFTONE数据原理知识的反向HALFTONING
公开(公告)号：WO2004080059A1
公开(公告)日：2004-09-16
申请号：PCT/US2004/005863
申请日：2004-02-27
申请人： HEWLETT PACKARD DEVELOPMENT COMPANY L.P. , MAURER, Ron, P.
发明人： MAURER, Ron, P.
IPC分类号： H04N1/40
CPC分类号： H04N1/40075
摘要： Blind inverse halftoning on a digital image is performed by applying a robust convolution filter to the digital image (220).
摘要翻译：通过对数字图像（220）应用鲁棒的卷积滤波器来执行数字图像上的盲目逆半色调。

25. 发明申请

WO98036555A1 METHOD FOR SCANNING SCREENED MASTER IMAGES 审中-公开
标题翻译：步骤来扫描屏幕图象正本
公开(公告)号：WO98036555A1
公开(公告)日：1998-08-20
申请号：PCT/DE1998/000191
申请日：1998-01-22
IPC分类号： H04N1/17 , G06T1/00 , H04N1/40 , H04N1/04
CPC分类号： H04N1/40075
摘要： The invention relates to a method for opto-electronic scanning, by pixel and by line, of screened master photographic images with a sensing device. From the actual scanning, at least one master photographic image area that contains th egrid scale is detected in the screened master photographic image. Subsequently, the picture values present in the local area of the detected grid scale area of the master photographic image are transferred by Fourier transformation to the frequency range as a spatial frequency spectrum, and, from the spatial frequency spectrum, the screen ruling and raster angle of the raster of the master photographic image are determined. For the determined raster angle and the determined screen rulings of the grid scale of the master photographic image, the optimal scan frequencies (fAx; fAy) for Moiré-free scanning are determined from the spatial frequency spectrum. The optimal scan frequencies (fAx; fAy) which determine the scanning fineness are set at the sensing device and then the screened master photographic image is scanned with the set optical scan frequencies, to obtain the picture values necessary for reproduction of the screened master photographic image.
摘要翻译：本发明涉及一种用于通过半色调图像的原稿用示踪线光电扫描像素和线的方法。光栅化的原始图像中的实际扫描之前，至少一种含网格模板区域（扫描范围）被检测到。随后，将存在于原始图像的所检测的光栅区域的空间域图像值由在频率范围为空间频谱傅立叶变换转换并从网线数和原始图像的网格的网线角度的空间频率谱确定。针对所确定的网屏角和用于其最佳采样（传真; FAY）的自由莫尔扫描原始图像的网格所确定的屏幕宽度从空间频率谱确定。扫描定义确定最佳的扫描频率（传真; FAY）被放置在扫描仪设置，然后将光栅化的原始图像是与设置最佳的扫描频率（传真; FAY）被采样，以获得所需的光栅化原始图像像素值的再现。

26. 发明申请

WO1996005692A1 METHOD OF PROCESSING VIDEO BITONAL IMAGES 审中-公开
标题翻译：处理视频双边图像的方法
公开(公告)号：WO1996005692A1
公开(公告)日：1996-02-22
申请号：PCT/EP1995003143
申请日：1995-08-08
申请人： INFOTRONIC S.P.A. , NICCOLINI, Marcello
发明人： INFOTRONIC S.P.A.
IPC分类号： H04N01/40
CPC分类号： H04N1/40075
摘要： The invention concerns a method for processing and storing bitonal video images, including digital scanned matrixes of white and black pixels belonging to a source image (IS), which has to be compressed in order to be transmitted and/or visualised with a reduced number of pixels. According to this method at least one matrix of the source image (IS), with preestablished sizes, is compressed in only one destination pixel with a level of grey corresponding to the ratio between the number of the black pixels and the number of the white pixels of the matrix. In this way the quality of the image is maintained and it is guaranteed its legibility.
摘要翻译：本发明涉及一种用于处理和存储比特率视频图像的方法，包括属于源图像（IS）的白色和黑色像素的数字扫描矩阵，其必须被压缩以便以减少的数量被发送和/或可视化像素。根据该方法，具有预定尺寸的源图像（IS）的至少一个矩阵仅在一个目标像素中被压缩，其中灰度级与黑色像素的数量和白色像素数之间的比率相对应的矩阵。以这种方式，保持图像的质量，并保证其可读性。

27. 发明申请

WO1992015169A1 PROCESS AND DEVICE FOR GENERATING SIGNALS CORRESPONDING TO THE INFORMATION CONTENT OF RASTER-SCANNED IMAGES 审中-公开
标题翻译：用于产生与RASTER-SCANNED图像的信息内容相关的信号的过程和设备
公开(公告)号：WO1992015169A1
公开(公告)日：1992-09-03
申请号：PCT/DE1992000085
申请日：1992-02-08
申请人： LINOTYPE-HELL AG , BAUER, Axel , CZOLBE, Roland , DETHARDT, Herbert
发明人： LINOTYPE-HELL AG
IPC分类号： H04N01/40
CPC分类号： H04N1/40075 , G06T5/20
摘要： Process and arrangement for transmitting raster-scanned images. Digital video signals for pixels which are appreciably smaller than the scanning width are derived by line-by-line and column-by-column scanning. The video signals undergo effective low pass filtering in the line and column directions by a filter window which includes at least the pixel that have passed through a raster mesh and which is shifted by an offset, line-by-line and column-by-column.

28. 发明申请

WO1992010905A1 METHOD AND APPARATUS FOR HALFTONE RENDERING OF A GRAY SCALE IMAGE USING A BLUE NOISE MASK 审中-公开
标题翻译：使用蓝色噪声掩蔽的灰度尺度图像的黑皮肤渲染的方法和装置
公开(公告)号：WO1992010905A1
公开(公告)日：1992-06-25
申请号：PCT/US1991008820
申请日：1991-12-03
申请人： RESEARCH CORPORATION TECHNOLOGIES, INC.
发明人： RESEARCH CORPORATION TECHNOLOGIES, INC. , PARKER, Kevin, J. , MITSA, Theophano
IPC分类号： H04N01/40
CPC分类号： G06T3/4084 , H04N1/40075 , H04N1/4051 , H04N1/4105
摘要： A method of and system for rendering a halftone image of a gray scale image (500) by utilizing a pixel-by-pixel comparison (402) of the gray scale image against a blue noise mask (502) is disclosed in which the gray scale image is scanned on a pixel-by-pixel basis and compared on a pixel-by-pixel basis to an array of corresponding data points contained in a blue noise mask stored in a PROM (406) or computer memory in order to produce the desired halftoned image. Both digital and optically implemented halftone methods are disclosed. Application specific modifications of the blue noise mask as well as its use for producing hafltoned color images are also disclosed.

29. 发明申请

WO1991013513A1 IMAGE PROCESSOR 审中-公开
标题翻译：图像处理器
公开(公告)号：WO1991013513A1
公开(公告)日：1991-09-05
申请号：PCT/JP1991000245
申请日：1991-02-26
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , TAKEUCHI, Jun
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H04N01/40
CPC分类号： H04N1/40075 , H04N1/4105
摘要： An image processor in which image data of a pseudo half-tone form read by a scanner (1) are turned back to multiple-valued data upon comparison with dither matrix data, in order to change the dither matrix and concentration on the memory without operating the scanner (1) again.

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