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    • 4. 发明授权
    • Two dimensional rotation of sub-sampled color space images
    • 次采样色空间图像的二维旋转
    • US07460135B2
    • 2008-12-02
    • US11400864
    • 2006-04-10
    • Thomas Joseph ShepherdDonald Richard Tillery, Jr.Nishanth Rajan
    • Thomas Joseph ShepherdDonald Richard Tillery, Jr.Nishanth Rajan
    • G09G5/00H04N9/74G06T3/00G06T3/60G06K9/00G06K9/46
    • G09G5/395G06T3/606
    • In a method and system for controlling rotation of a color image stored as sub-sampled image data in a memory, a controller includes a finite state machine (FSM) operable to fetch the sub-sampled image data and provide the sub-sampled data as a plurality of pixels to form the color image having a predefined angle of rotation. The FSM provides a predefined address of sub-sampled image data describing the color image stored in the memory to an addressing unit. The addressing unit is operable to read twice the sub-sampled image data located at the predefined address. A memory device is operable to push each read instance of the sub-sampled image data. A pipeline controlled by the FSM is operable to pull and selectively read the sub-sampled image data from the memory device for generating the plurality of pixels.
    • 在用于控制存储在存储器中的作为副采样图像数据的彩色图像的旋转的方法和系统中,控制器包括有限状态机(FSM),可操作以获取子采样图像数据并将子采样数据提供为 多个像素以形成具有预定旋转角度的彩色图像。 FSM将存储在存储器中的彩色图像的子采样图像数据的预定义地址提供给寻址单元。 寻址单元可操作以读取位于预定义地址的子采样图像数据的两倍。 存储器设备可操作以推动子采样图像数据的每个读取实例。 由FSM控制的流水线可操作以从存储器件中拉取并选择性地读取子采样图像数据,以产生多个像素。
    • 5. 发明授权
    • Pixel data preprocessing methods and systems
    • 像素数据预处理方法和系统
    • US07280116B2
    • 2007-10-09
    • US11082328
    • 2005-03-17
    • Thomas J. ShepherdDonald Richard Tillery, Jr.Moslema SharifAlok Mishra
    • Thomas J. ShepherdDonald Richard Tillery, Jr.Moslema SharifAlok Mishra
    • G06T15/00
    • G09G5/06G09G2320/0276
    • Methods and systems are disclosed for preprocessing video display pixel data. A preprocessor is provided with a selectable gamma correction mode and a selectable palette lookup mode. In palette lookup mode, a LUT memory area is used for performing a palette lookup for each of the red, green, and blue components of video pixel data, concatenating the paletted red, green, and blue components, and outputting paletted preprocessed pixel data. In gamma correction mode, the preprocessor uses the same LUT memory area for performing gamma correction on each of the red, green, and blue components of video pixel data, concatenating the gamma-corrected red, green, and blue components, and outputting a gamma-corrected preprocessed pixel data.
    • 公开了用于预处理视频显示像素数据的方法和系统。 预处理器被提供有可选的伽马校正模式和可选择的调色板查找模式。 在调色板查找模式中,LUT存储器区域用于对视频像素数据的红色,绿色和蓝色分量中的每一个执行调色板查找,连接调色红,绿和蓝分量,并输出调色预处理的像素数据。 在伽马校正模式中,预处理器使用相同的LUT存储器区域来对视频像素数据的红色,绿色和蓝色分量中的每一个进行伽马校正,连接伽马校正的红色,绿色和蓝色分量,并输出伽马 - 校正的预处理像素数据。