公开(公告)号：US20100260433A1

公开(公告)日：2010-10-14

申请号：US12678823

申请日：2007-09-19

申请人： Dong-Qing Zhang ,  Ingo Tobias Doser ,  Marco Antonio Vasquez ,  Xueming Henry Gu

发明人： Dong-Qing Zhang ,  Ingo Tobias Doser ,  Marco Antonio Vasquez ,  Xueming Henry Gu

IPC分类号： G06T3/40

CPC分类号： G06T3/403

摘要： A system and method for scaling images are provided. An upscaling algorithm or function is employed that increases the size of an image and then filters the upscaled image to remove aliasing artifacts. The system and method provides for acquiring an image of a first size, detecting the geometry of the image, scaling the image to a second size, and filtering the scaled image with at least one filter based on the detected geometry. During the filtering process, the edges of objects in the upscaled image are detected and different filter frequency responses are provided for the detected edges. Providing different filter frequency responses for the detected edges preserves more details for line images.

摘要翻译： 提供了一种用于缩放图像的系统和方法。 采用增大算法或函数来增加图像的大小，然后对放大的图像进行过滤以消除混叠伪像。 该系统和方法提供获取第一尺寸的图像，检测图像的几何形状，将图像缩放到第二尺寸，以及基于检测到的几何形状用至少一个滤波器对缩放后的图像进行滤波。 在滤波过程中，检测放大图像中的物体的边缘，并为检测到的边缘提供不同的滤波器频率响应。 为检测到的边缘提供不同的滤波器频率响应保留线图像的更多细节。

公开(公告)号：US20100103331A1

公开(公告)日：2010-04-29

申请号：US12452252

申请日：2007-06-27

申请人： Youngshik Yoon ,  Xueming Henry Gu

发明人： Youngshik Yoon ,  Xueming Henry Gu

IPC分类号： H04N9/31

CPC分类号： G03B21/26 ,  H04N5/913 ,  H04N21/4627 ,  H04N2005/91392

摘要： A projection system has a projector having a frame rate exceeding human flicker sensitivity. The projector having warning message frames in between actual video frames. The warning frames are not detectable to humans. A light source which emits infrared light and ultraviolet light at wavelengths and intensities detectable by movie cameras (e.g., camcorders) and undetectable to humans.

摘要翻译： 投影系统具有帧速率超过人的闪烁灵敏度的投影仪。 该投影仪在实际视频帧之间具有警告消息帧。 警告框架对人类无法检测到。 发射红外光和紫外线的光源，其波长和强度可由电影摄影机（例如，摄像机）检测并且不可检测到人。

公开(公告)号：US20100046804A1

公开(公告)日：2010-02-25

申请号：US12522438

申请日：2007-06-19

申请人： Xueming Henry Gu ,  Ju Guo

发明人： Xueming Henry Gu ,  Ju Guo

IPC分类号： G06K9/00 ,  G06K9/40 ,  G06K9/46

CPC分类号： H04N1/41 ,  H04N1/409 ,  H04N19/86 ,  H04N19/90

摘要： A system and method of the present disclosure provides a region based error diffusion algorithm or function for reducing artifacts in images. The system and method utilizes knowledge of a region of interest (ROI) in an image and applies effects like dithering or error diffusion to the area or region that shows the artifacts, e.g., a banding phenomenon. The system and method provide for defining a region in at least one first image, the defined region having at least one artifact, tracking the defined region to at least one second image, and applying an error diffusion function to the defined region to mask the at least one artifact in the at least one first and second images.

摘要翻译： 本公开的系统和方法提供了一种用于减少图像中的伪影的基于区域的误差扩散算法或功能。 该系统和方法利用图像中感兴趣区域（ROI）的知识，并将诸如抖动或误差扩散的效应应用于显示伪影的区域或区域，例如条带现象。 所述系统和方法提供用于在至少一个第一图像中定义区域，所述限定区域具有至少一个假象，将所定义的区域跟踪至少一个第二图像，以及将误差扩散函数应用于所述限定区域以掩蔽所述 所述至少一个第一和第二图像中的至少一个伪影。

公开(公告)号：US06337692B1

公开(公告)日：2002-01-08

申请号：US09282400

申请日：1999-03-31

申请人： Sanjay Devappa Rai ,  Nicholas Barton ,  Troy Taylor ,  Xueming Henry Gu

发明人： Sanjay Devappa Rai ,  Nicholas Barton ,  Troy Taylor ,  Xueming Henry Gu

IPC分类号： G09G502

CPC分类号： H04N1/62 ,  G06T5/008 ,  G06T11/001 ,  G06T2207/10016 ,  G06T2207/10024 ,  G11B27/024 ,  G11B27/032 ,  G11B27/034 ,  G11B27/34 ,  G11B2220/90 ,  H04N1/622 ,  H04N9/64

摘要： A color correction system that implements scene-by-scene color manipulation in the primary color domain to color correction regions of a video image isolated in the hue domain using hue, saturation, and luminance qualification. The system may be configured as a number of color correction blocks arranged in series or parallel. Each correction block typically allows a colorist to define up to sixteen non-overlapping hue sectors with associated corrected color values and qualification curves. Each color correction block has two video inputs, a first connected to the output from the previous block, and a second connected to an unprocessed video signal. Each block includes a video multiplexer that operates as a switch allowing the colorist to select either the output of a previous block or the unprocessed video input signal as the input for a given block. Delay buffers are positioned in the unprocessed video signal between each color correction block to synchronize the unprocessed video signal with the output video signal from the preceding color correction block. Thus, the color correction blocks may be applied separately (i.e., in parallel) or in tandem (i.e., in series) for each scene processed. In addition, a particular colorist may select the number of blocks in the system in accordance with that colorist's needs.

摘要翻译： 一种颜色校正系统，其在原色域中实现场景颜色操作，以使用色调，饱和度和亮度限定在色相域中分离的视频图像的颜色校正区域。 该系统可以被配置为串联或并行布置的多个颜色校正块。 每个校正块通常允许着色者定义多达十六个非重叠色调扇区，其中具有相关联的校正颜色值和限定曲线。 每个颜色校正块具有两个视频输入，第一连接到前一块的输出，第二个连接到未处理的视频信号。 每个块包括作为开关操作的视频多路复用器，允许着色者选择先前块的输出或未处理的视频输入信号作为给定块的输入。 延迟缓冲器位于每个颜色校正块之间的未处理的视频信号中，以使未处理的视频信号与来自前一颜色校正块的输出视频信号同步。 因此，对于所处理的每个场景，颜色校正块可以单独地（即并行）或串联（即，串联地）应用。 此外，特定的着色者可以根据该着色者的需要来选择系统中的块数。