公开(公告)号：US07277196B2

公开(公告)日：2007-10-02

申请号：US10342873

申请日：2003-01-15

申请人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

发明人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

IPC分类号： G06F15/00

CPC分类号： H04N1/4078 ,  H04N1/6033

摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.

摘要翻译： 一种用于打印机控制和色平衡校准的系统和方法。 该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。 该方法包括定义着色剂的组合，例如将用于打印图像的油墨或调色剂，为要使用的组合定义期望的响应，并且实时迭代地打印CMY半色调色块，测量印刷的贴片 通过原位传感器并且基于测量迭代地执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。 校准在半色调上进行，而它们处于高量化分辨率形式。

公开(公告)号：US07130488B2

公开(公告)日：2006-10-31

申请号：US10268505

申请日：2002-10-09

申请人： Steven J. Harrington ,  Robert P. Loce ,  Gaurav Sharma

发明人： Steven J. Harrington ,  Robert P. Loce ,  Gaurav Sharma

IPC分类号： G06K9/36

CPC分类号： H04N13/161 ,  H04N13/257

摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image on a substrate, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. At least one of the source images includes image content in the form of a textured image. When the rendered composite image is subjected to illumination by one of the narrow band illuminants for which a source image was encoded, the textured image in the recovered source image becomes visually detectable.

摘要翻译： 用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于在基板上渲染合成图像，或用于从所渲染的合成图像中恢复至少一个编码源图像 使得恢复的源图像是可区分的。 源图像中的至少一个包括纹理图像形式的图像内容。 当所渲染的合成图像被源图像被编码的窄带光源中的一个照射时，恢复的源图像中的纹理图像变得可视地检测。

公开(公告)号：US06975778B1

公开(公告)日：2005-12-13

申请号：US09559198

申请日：2000-04-27

申请人： Robert P. Loce ,  Beilei Xu

发明人： Robert P. Loce ,  Beilei Xu

IPC分类号： G06K9/40

CPC分类号： G06T5/003 ,  G06T2207/10008 ,  G06T2207/30176 ,  H04N1/409

摘要： An imaging apparatus includes an image acquisition section which converts a physical image to a digital image representation using non-ideal optics such as an array lens. This image acquisition results in a digital image representation containing errors or artifacts. A memory in data communication with a processor stores a plurality of compensation parameters selected for use in correcting errors induced by the lens array. The compensation parameters are determined by performing a lens characterization which includes measuring lens performance at a plurality of locations along the lens. After the processor adjusts the image representation, the post-compensated digital image representation may be further processed, stored, transferred, and the like. According to another embodiment of the invention, a non-ideal array lens induces errors in an image representation during a printing or output operation. Similarly, an image processor applies pre-compensation parameters to the desired or ideal image representation in electronic form to compensate for errors which are known to be induced by the lens during the output operation. Accordingly, when the pre-compensated image representation is output using the non-ideal lens, the physical image output appears to have been printed with an ideal lens.

摘要翻译： 一种成像装置包括图像获取部分，其使用诸如阵列透镜的非理想光学器件将物理图像转换为数字图像表示。 该图像采集导致包含错误或伪像的数字图像表示。 与处理器进行数据通信的存储器存储选择用于校正由透镜阵列引起的误差的多个补偿参数。 通过执行透镜表征来确定补偿参数，该透镜表征包括在透镜的多个位置处测量透镜性能。 在处理器调整图像表示之后，可以进一步处理，存储，传送后补偿数字图像表示等。 根据本发明的另一实施例，非理想阵列透镜在打印或输出操作期间引起图像表示中的错误。 类似地，图像处理器以电子形式将预补偿参数应用于期望的或理想的图像表示，以补偿在输出操作期间已知由透镜感应的误差。 因此，当使用非理想透镜输出预补偿图像表示时，物理图像输出似乎已经用理想透镜打印。

公开(公告)号：US06944341B2

公开(公告)日：2005-09-13

申请号：US09768161

申请日：2001-01-24

申请人： Robert P. Loce ,  Clara Cuciurean-Zapan

发明人： Robert P. Loce ,  Clara Cuciurean-Zapan

IPC分类号： B41J2/485 ,  B41J5/30 ,  G06T1/00 ,  G06T7/00 ,  H04N1/409 ,  G06K9/00 ,  G06K9/62

CPC分类号： H04N1/409

摘要： An anti-aliased, or gray-edged, image is characterized by comparing the image to a number of loose-templates having a plurality of elements and at least one element having a range greater than zero. As families of loose-templates are compared to the anti-aliased input image, one or more sets of patterns, or features, are recognized and extracted to produce various screens of features that generally describe the anti-aliased input image. An arbitration technique is then performed on the sets of features to produce feature vectors which, in turn, can be used to control line-widths within the anti-aliased input image.

摘要翻译： 抗锯齿或灰边图像的特征在于将图像与具有多个元素的多个松散模板和具有大于零的范围的至少一个元素进行比较。 当将松散模板的族与抗锯齿输入图像进行比较时，识别和提取一组或多组模式或特征以产生通常描述抗混叠输入图像的各种特征屏幕。 然后对特征集执行仲裁技术以产生特征向量，其又可以用于控制抗混叠输入图像内的线宽。

公开(公告)号：US06760056B2

公开(公告)日：2004-07-06

申请号：US09738573

申请日：2000-12-15

申请人： R. Victor Klassen ,  Stephen C. Morgana ,  Robert P. Loce ,  Michael Branciforte ,  Daniel R. Maurer ,  Michael J. Martin ,  Robert M. Lofthus

发明人： R. Victor Klassen ,  Stephen C. Morgana ,  Robert P. Loce ,  Michael Branciforte ,  Daniel R. Maurer ,  Michael J. Martin ,  Robert M. Lofthus

IPC分类号： B41J247

CPC分类号： B41J2/471

摘要： A method for rendering a raster output level determines an image position of a pixel of interest (POI) within an image. An intended raster output level, which corresponds to the POI, is received into a processing device. A final raster input level is determined as a function of the image position and the intended raster output level. The final input level and the image position are transmitted to an output device. An actual raster output level is rendered, via the output device, at a position on an output medium corresponding to the image position. The actual raster output level substantially matches the intended raster output level.

摘要翻译： 用于渲染光栅输出电平的方法确定图像内的感兴趣像素（POI）的图像位置。 对应于POI的预期光栅输出电平被接收到处理设备中。 根据图像位置和预期的光栅输出电平确定最终光栅输入电平。 最终输入电平和图像位置被发送到输出设备。 通过输出设备，在对应于图像位置的输出介质上的位置处渲染实际的光栅输出电平。 实际光栅输出电平基本上与预期的光栅输出电平相匹配。

公开(公告)号：US06757431B2

公开(公告)日：2004-06-29

申请号：US09740607

申请日：2000-12-19

申请人： Robert P. Loce ,  John C. Handley ,  Clara Cuciurean-Zapan

发明人： Robert P. Loce ,  John C. Handley ,  Clara Cuciurean-Zapan

IPC分类号： G06K962

CPC分类号： G06T3/4007

摘要： A method for resolution conversion for re-sampling anti-aliased images is disclosed which decreases bandwidth costs associated with anti-aliased line art and other costs associated with interpolating these images to a desired resolution. The present method first involving the receipt of an image which is comprised of bitmap data including at least a plurality of gray-scale pixel tiles that define the image. Then receiving the image data at a first resolution and extracting pixel tile information of the received image at a second resolution. The method has the step of next using loose gray scale template matching on each of the pixel tile information with at least one of a plurality of templates so as to generate pixel-wise looseness interval values there between. Then, outputting a portion of the enhanced pixel tile information wherein the enhanced pixel tile information is formed by a matching of a template with pixel-wise looseness values. Preferably, the input and output resolutions are at different integer values and the first and second resolutions have a non-integer ratio. The input image can also preferably be comprised of gray halftones and the output enhanced pixel tile can be formed of binary pixel data.

摘要翻译： 公开了一种用于重采样抗锯齿图像的分辨率转换方法，其减少了与抗锯齿线条艺术相关联的带宽成本以及将这些图像内插到期望分辨率相关的其它成本。 本方法首先包括接收包括定位图像的至少多个灰度级像素块的位图数据的图像。 然后以第一分辨率接收图像数据，并以第二分辨率提取接收到的图像的像素平铺信息。 该方法具有以下步骤：使用与多个模板中的至少一个相对应的每个像素平铺信息上的松散灰度级模板匹配，以便在其间产生像素级的松散间隔值。 然后，输出增强像素平铺信息的一部分，其中通过模板与像素方向的松动度值的匹配来形成增强像素平铺信息。 优选地，输入和输出分辨率是不同的整数值，并且第一和第二分辨率具有非整数比。 输入图像还可以优选地由灰色半色调组成，并且输出增强像素图块可以由二进制像素数据形成。

公开(公告)号：US06608643B2

公开(公告)日：2003-08-19

申请号：US10046234

申请日：2002-01-16

申请人： Robert M. Lofthus ,  Patrick Y. Maeda ,  Daniel W. Costanza ,  Kristine A. German ,  Fred F. Hubble, III ,  Robert P. Loce

发明人： Robert M. Lofthus ,  Patrick Y. Maeda ,  Daniel W. Costanza ,  Kristine A. German ,  Fred F. Hubble, III ,  Robert P. Loce

IPC分类号： B41J247

CPC分类号： G02B26/123 ,  G02B26/127

摘要： An apparatus for correcting beam-to-beam spacing error on an image plane of a photoreceptor includes a controller which generates beam-to-beam spacing error corrections signals, a plurality of optical elements, each of which is adjustable and responsive to beam-to-beam spacing error correction signal and a gray level measurement device. The controller performs the beam-to-beam spacing error correction analysis, determining whether or not a correction is necessary, and if so, which optical element to adjust and the magnitude of adjustment. Enhanced toner area coverage sensors are used to detect the gray level of a toned area of raster scan line patterns at various locations across the photoreceptor image plane. By repeatedly evaluating the beam-to-beam spacing error during operation, the apparatus of the invention is able to correct beam-to-beam spacing errors that may develop during operation and does not permit residual errors to persist even after an initial correction has been implemented.

摘要翻译： 用于校正感光体的图像平面上的光束到光束间隔误差的装置包括产生光束到光束间隔误差校正信号的控制器，多个光学元件，每个光学元件可调节并且响应于光束到光束 光束间隔误差校正信号和灰度级测量装置。 控制器执行波束对波束间隔误差校正分析，确定是否需要校正，如果是，则调整哪个光学元件和调整幅度。 增强的调色剂区域覆盖传感器用于检测在感光体图像平面上的各个位置处的光栅扫描线图案的色调区域的灰度级。 通过在操作期间重复评估波束对波束间隔误差，本发明的装置能够校正在操作期间可能产生的波束间距误差，并且即使在初始校正已经被保持之后也不允许残留误差保持 实施。

公开(公告)号：US6167166A

公开(公告)日：2000-12-26

申请号：US46414

申请日：1998-03-23

申请人： Robert P. Loce ,  Ronald E. Jodoin ,  Peter A. Crean ,  Wei Zhu

发明人： Robert P. Loce ,  Ronald E. Jodoin ,  Peter A. Crean ,  Wei Zhu

IPC分类号： H04N1/409 ,  G06K15/02 ,  G06T5/20 ,  G06T11/00 ,  G06T11/20 ,  H04N1/405 ,  G03F3/08

CPC分类号： H04N1/4056 ,  G06K15/02 ,  G06K2215/006 ,  G06K2215/0071 ,  G06T11/001

摘要： The present invention is a method for antialiased rendering (AAR) of an image. First, tagging methods for identifying antialiased pixels were described, the methods being employed separately or in concert with one another. After identifying AAR pixels, a fill order is determined and applied using a fill order algorithm that preferably employs a pixel window that is a subset of the larger window employed for pixel identification.

摘要翻译： 本发明是图像的抗锯齿渲染（AAR）的方法。 首先，描述了用于识别抗锯齿像素的标记方法，该方法是单独使用的或彼此协调使用的。 在识别AAR像素之后，使用优选采用作为用于像素识别的较大窗口的子集的像素窗口的填充顺序算法来确定和应用填充顺序。

公开(公告)号：US6137918A

公开(公告)日：2000-10-24

申请号：US46426

申请日：1998-03-23

申请人： Steven J. Harrington ,  Robert P. Loce

发明人： Steven J. Harrington ,  Robert P. Loce

IPC分类号： H04N1/409 ,  G06K15/02 ,  G06T5/00 ,  G06T5/20 ,  G09G5/36 ,  G06K9/40

CPC分类号： G06K15/02 ,  G06K2215/0071

摘要： The present invention is a method for efficiently processing an image to detect antialiased pixels using reduced buffering memory. The method stores, in a scanline buffer memory, a predefined number of scanlines of data including data for a target pixel position and, in a tag buffer memory, a plurality of binary antialiasing tags, including at least a previously estimated tag for the target pixel position. Then using the stored pixel data and previously estimated tag, an antialiasing tag for the target pixel position is generated.

摘要翻译： 本发明是一种用于使用减少的缓冲存储器来有效地处理图像以检测抗锯齿像素的方法。 该方法在扫描线缓冲存储器中存储包括目标像素位置的数据的预定数量的数据扫描线，并且在标签缓冲存储器中存储多个二进制抗混叠标签，所述多个二值抗锯齿标签至少包括用于目标像素的先前估计的标签 位置。 然后使用存储的像素数据和先前估计的标签，生成针对目标像素位置的抗混叠标签。

公开(公告)号：US5862305A

公开(公告)日：1999-01-19

申请号：US721065

申请日：1996-09-26

申请人： Girmay K. Girmay ,  Robert P. Loce

发明人： Girmay K. Girmay ,  Robert P. Loce

IPC分类号： G06T3/40 ,  H04N1/40 ,  G06K1/00 ,  G06K9/36

CPC分类号： H04N1/40068 ,  G06T3/40

摘要： The present invention is a method and apparatus for logic based resolution conversion and enhancement of digital images. The invention employs a selectively controllable architecture wherein a plurality of input resolutions can be converted to a common output resolution. The system has particular use in highlight color systems, wherein the highlight color data may be processed separately for each color plane, using the present invention, and then recombined to produce enhanced highlight color output. Moreover, the hardware preferably employs an interlocked area mapping technique to produce the resolution converted bit planes of digital image data.

摘要翻译： 本发明是用于基于逻辑的分辨率转换和数字图像增强的方法和装置。 本发明采用选择性可控的架构，其中多个输入分辨率可被转换为公共输出分辨率。 该系统在高亮度颜色系统中具有特别的用途，其中可以使用本发明为每个彩色平面分别处理高亮度颜色数据，然后重新组合以产生增强的高亮颜色输出。 此外，硬件优选采用互锁区域映射技术来产生数字图像数据的分辨率转换位平面。