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    • 5. 发明授权
    • Super resolution encoding
    • 超分辨率编码
    • US07636480B2
    • 2009-12-22
    • US11149522
    • 2005-06-10
    • Yeqing ZhangRobert P. Loce
    • Yeqing ZhangRobert P. Loce
    • G06K9/36H04N7/12H04B1/66
    • G06T9/008
    • A method for encoding high resolution data to a form having a reduced number of bits can include predefining a plurality of high-output-resolution output patterns, associating respective output-resolution output patterns of the plurality with respective encoded resolution bit patterns, receiving a block of input-resolution input data, determining a respective difference between a pattern of the received block of input data and the respective output-resolution output patterns, selecting a respective output-resolution output pattern associated with a lowest respective difference to be a representative output pattern for the received block of input data and encoding the received block of input-resolution input data as the respective encoded resolution bit pattern associated with the selected respective representative high-output-resolution output pattern. A system includes a library of output patterns in association with encoded resolution bit patterns, a block analyzer, a block selector and an encoder.
    • 用于将高分辨率数据编码为具有减少的位数的形式的方法可以包括预定义多个高输出分辨率输出模式,将多个的相应输出分辨率输出模式与相应的编码分辨率位模式相关联,接收块 输入分辨率输入数据,确定所接收的输入数据块的模式与相应的输出分辨率输出模式之间的相应差异,选择与最低相应差值相关联的相应输出分辨率输出模式为代表性输出模式 对于所接收的输入数据块并将所接收的输入分辨率输入数据块编码为与所选择的各个代表性高输出分辨率输出模式相关联的相应编码分辨率位模式。 系统包括与编码的分辨率位模式相关联的输出模式库,块分析器,块选择器和编码器。
    • 6. 发明授权
    • Inter-separation decorrelator
    • 分离间去相干器
    • US07486416B2
    • 2009-02-03
    • US11143818
    • 2005-06-02
    • Edul N. DalalWencheng WuRobert P. LoceRaja BalaYeqing ZhangNorman W. Zeck
    • Edul N. DalalWencheng WuRobert P. LoceRaja BalaYeqing ZhangNorman W. Zeck
    • H04N1/60H04N1/04G03F3/08G06K15/00G06K9/00
    • H04N1/6038H04N1/6041
    • Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).
    • 从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。 确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。 还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。 图像数据通过去相关功能进行处理,从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。 可选地,还通过空间依赖的单一着色剂补偿功能来处理图像数据,由此产生着色剂值,其对着色剂外观不均匀性的两个方面进行补偿。 可以在不同的空间和时间频率或分辨率下确定,校准和/或存储两种补偿功能。 可以采用一种或两种补偿功能来保持多个渲染设备(例如,标记引擎)之间的一致性。
    • 9. 发明授权
    • Tagging of antialiased images
    • 标记抗锯齿图像
    • US06243499B1
    • 2001-06-05
    • US09046424
    • 1998-03-23
    • Robert P. LoceYeqing ZhangMichael Branciforte
    • Robert P. LoceYeqing ZhangMichael Branciforte
    • G06K940
    • G06T5/20
    • The present invention is a method and apparatus for the identification and tagging of antialiased pixels within regions of an image. The techniques described improve the recognition of fine gray features and enable the detection of both black and white features on high and low contrast backgrounds. The system relies on the establishment of the sense (positive/negative) of an image by first using a histogramming operation. Once the sense is determined, a plurality of logical channels are used to select a threshold, binarize a region of the image, generate a vector representative of the region, and to process the vector to identify whether an antialiased pixel is present therein. Subsequently, the output of the channels is logically combined to produce an antialias tag.
    • 本发明是用于识别和标记图像区域内的抗锯齿像素的方法和装置。 所描述的技术改善了细灰色特征的识别,并且能够在高对比度和低对比度背景下检测黑白特征。 该系统首先使用直方图操作来依赖图像的感觉(正/负)的建立。 一旦确定了感觉,则使用多个逻辑信道来选择阈值,二值化图像的区域,生成表示该区域的向量,并且处理该矢量以识别其中是否存在抗锯齿像素。 随后,通道的输出被逻辑地组合以产生抗混叠标签。
    • 10. 发明授权
    • Color compensation of images
    • 图像颜色补偿
    • US08154777B2
    • 2012-04-10
    • US11200227
    • 2005-08-09
    • Yeqing ZhangRobert P. LoceRaja Bala
    • Yeqing ZhangRobert P. LoceRaja Bala
    • G03F3/08G06F15/00
    • H04N1/6016
    • A color correction method includes for each of a plurality of color separations of a digital image, establishing a tone reproduction curve in the form of a vector. The vector is a function of a plurality of basis vectors. The basis vectors account for colorant interactions between a primary colorant with which the color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The vector includes modified input values corresponding to input values for the color separation which vary, depending on the input values of at least the second color separation. For a pixel of interest in the digital image, a modified input value for the color separation which corresponds to the input value of the given color separation is identified from the vector.
    • 颜色校正方法包括数字图像的多个分色中的每一个,建立矢量形式的色调再现曲线。 向量是多个基本向量的函数。 基本向量涉及要与其进行分色的主要着色剂和至少一种次要着色剂之间的着色剂相互作用,至少一个次要着色剂将使多个分色中的至少一个分色进行再现。 矢量包括对应于颜色分离的输入值的修改的输入值,其根据至少第二颜色分离的输入值而变化。 对于数字图像中感兴趣的像素,从向量中识别对应于给定颜色分离的输入值的颜色分离的修改输入值。