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1. 发明授权

US06563936B2 Spatio-temporal channel for images employing a watermark and its complement 有权
标题翻译：使用水印及其补码的图像的时空信道
公开(公告)号：US06563936B2
公开(公告)日：2003-05-13
申请号：US09803392
申请日：2001-03-09
申请人： Michael H. Brill , Michael A. Isnardi , Albert P. Pica
发明人： Michael H. Brill , Michael A. Isnardi , Albert P. Pica
IPC分类号： H04K100
CPC分类号： G06T1/0071 , G06T1/0085 , G06T2201/0081 , G06T2201/0083 , H04N19/186 , H04N19/467 , H04N19/577 , H04N21/23892 , H04N21/8358
摘要： A channel is inserted into a sequence of frames for an image, by varying one or more display characteristics across a display in accordance with a spatio-temporal pattern applied to, for example, successive lines of each modified frame. The channel may be employed to watermark the image, and the watermark may be defined as W(x) and its complement [1−W(x)] in counter-phase rotations of successive lines in pairs of frames. The watermark information is applied in relatively still portions of the image with sufficient lightness level. A receiver includes a watermark detector that has a priori information about the watermark. The watermark detector examines specific regions of the displayed image over time, and tests the regions for the watermark during time intervals when the image remains relatively still.
摘要翻译：通过根据应用于例如每个修改的帧的连续行的时空模式，跨越显示器改变一个或多个显示特性，将通道插入到用于图像的帧序列中。可以使用信道对图像进行水印，并且在成对的帧中的相继行的相位旋转中，水印可被定义为W（x）及其补码[1-W（x）]。水印信息以足够的亮度水平施加在图像的相对静止部分中。接收机包括具有关于水印的先验信息的水印检测器。水印检测器随时间检查显示图像的特定区域，并且在图像保持相对静止的时间间隔期间测试水印的区域。

2. 发明授权

US6137904A Method and apparatus for assessing the visibility of differences between two signal sequences 失效
标题翻译：用于评估两个信号序列之间差异的可见性的方法和装置
公开(公告)号：US6137904A
公开(公告)日：2000-10-24
申请号：US55076
申请日：1998-04-03
申请人： Jeffrey Lubin , Michael H. Brill , Albert P. Pica , Roger L. Crane , Walter B. Paul , Gary A. Gendel
发明人： Jeffrey Lubin , Michael H. Brill , Albert P. Pica , Roger L. Crane , Walter B. Paul , Gary A. Gendel
IPC分类号： G06T1/00 , G06T5/50 , G06T7/20 , G06T15/50 , H04N7/26 , G06K9/00
CPC分类号： G06T5/50 , G06T15/50 , H04N19/63
摘要： A method and apparatus for assessing the visibility of differences between two input signal sequences, e.g., image sequences is disclosed. The apparatus comprises a perceptual metric generator having an input signal processing section, a luminance processing section, a chrominance processing section and a perceptual metric generating section.
摘要翻译：公开了一种用于评估两个输入信号序列（例如，图像序列）之间的差异的可视性的方法和装置。该装置包括具有输入信号处理部分，亮度处理部分，色度处理部分和感知度量产生部分的感知度量发生器。

3. 发明授权

US06285797B1 Method and apparatus for estimating digital video quality without using a reference video 有权
标题翻译：用于在不使用参考视频的情况下估计数字视频质量的方法和装置
公开(公告)号：US06285797B1
公开(公告)日：2001-09-04
申请号：US09543753
申请日：2000-04-05
申请人： Jeffrey Lubin , Michael Henry Brill , Albert P. Pica
发明人： Jeffrey Lubin , Michael Henry Brill , Albert P. Pica
IPC分类号： G06K936
CPC分类号： H04N17/004
摘要： A method and apparatus for performing image quality assessment that does not require the use or availability of a reference image. The apparatus comprises a vision pre-processor, a virtual reference generator, a virtual distortion generator, and a image quality metric generator. The vision preprocessor performs a vision-like transformation upon an input image sequence to produce a vision energy map. The virtual reference generator operates upon the vision energy map to produce a virtual reference while the virtual distortion generator produces distortion estimates that are used by the virtual reference generator to produce the virtual reference. The virtual distortion and virtual reference are used by the image quality metric generator to produce a image quality metric for the input video sequence without the use of a reference video sequence.
摘要翻译：用于执行图像质量评估的方法和装置，其不需要参考图像的使用或可用性。该装置包括视觉预处理器，虚拟参考生成器，虚拟失真发生器和图像质量度量生成器。视觉预处理器在输入图像序列上执行视觉样变换以产生视觉能量图。虚拟参考发生器在视觉能量图上操作以产生虚拟参考，而虚拟失真发生器产生由虚拟参考发生器用于产生虚拟参考的失真估计。图像质量度量发生器使用虚拟失真和虚拟参考来产生用于输入视频序列的图像质量度量而不使用参考视频序列。

4. 发明授权

US4631691A Video display device simulation apparatus and method 失效
标题翻译：视频显示设备仿真设备及方法
公开(公告)号：US4631691A
公开(公告)日：1986-12-23
申请号：US610006
申请日：1984-05-14
申请人： Albert P. Pica
发明人： Albert P. Pica
IPC分类号： G06F17/50 , G06T1/00 , G06F3/14
CPC分类号： G06T1/00
摘要： A video display device may be simulated using a computer and a conventional video image processor. A test image which is an enlarged version of a typical image to appear on the simulated display device is generated. This enlarged test image is then digitally processed to replicate the effects of the various parameters of the display device which affect the image. The processed signal representing the image is then displayed on a test monitor, which is viewed from a distance which is proportional to the degree of enlargement of the test image.
摘要翻译：可以使用计算机和常规视频图像处理器来模拟视频显示设备。产生出现在模拟显示装置上的典型图像的放大版本的测试图像。然后对该放大的测试图像进行数字处理以复制影响图像的显示设备的各种参数的影响。表示图像的经处理的信号然后显示在测试监视器上，从与测试图像的放大程度成比例的距离观察。

5. 发明授权

US5422680A Non-linear contrast control apparatus with pixel distribution measurement for video display system 失效
标题翻译：用于视频显示系统的具有像素分布测量的非线性对比度控制装置
公开(公告)号：US5422680A
公开(公告)日：1995-06-06
申请号：US296074
申请日：1994-08-24
申请人： William A. Lagoni , Albert P. Pica , James R. Bergen , Todd J. Christopher
发明人： William A. Lagoni , Albert P. Pica , James R. Bergen , Todd J. Christopher
IPC分类号： H04N5/57 , H04N5/20 , H04N5/202
CPC分类号： H04N5/20
摘要： A video signal to be processed is applied to a non-linear processor having an adjustable gain responsive to a control signal over at least one portion of the amplitude range of the video input signal. A sampling circuit, responsive to the video signal, generates video samples related to the video signal. A control circuit, responsive to the video samples, generates the control signal in accordance with the number of samples in at least a given amplitude range thereby controlling the percentage of samples of a given range in displayed images. Plural control and sampling circuits may be included provide control for white stretch processing, black stretch processing and video mid-point processing for enhancing contrast through out the entire video signal range.
摘要翻译：要处理的视频信号被应用于响应于视频输入信号的幅度范围的至少一部分上的控制信号的具有可调增益的非线性处理器。响应于视频信号的采样电路产生与视频信号相关的视频采样。响应于视频样本的控制电路根据至少给定幅度范围内的样本数生成控制信号，从而控制显示图像中给定范围的样本的百分比。可以包括多个控制和采样电路，用于白拉伸处理，黑拉伸处理和视频中点处理的控制，以在整个视频信号范围内增强对比度。

6. 发明授权

US4892391A Method of arranging the cells within the pixels of a color alpha-numeric display device 失效
标题翻译：在彩色字母数字显示装置的像素内布置单元的方法
公开(公告)号：US4892391A
公开(公告)日：1990-01-09
申请号：US303997
申请日：1989-01-30
申请人： Wilber C. Stewart , Albert P. Pica , William R. Roach
发明人： Wilber C. Stewart , Albert P. Pica , William R. Roach
IPC分类号： G09G5/02
CPC分类号： G09G5/02 , G09G2300/0452
摘要： An improved method of arrangement for the cells comprising the pixels of a display device wherein each of the pixels includes a brightest cell, a bright cell, a medium cell and a dark cell. The brightest cell and the bright cell are aligned substantially parallel to one the display axes and the bright cell and the dark cell are diagonally aligned with respect to the axes of the dipslay.
摘要翻译：一种用于包括显示装置的像素的单元的改进的布置方法，其中每个像素包括最亮单元，明亮单元，介质单元和暗单元。基本上平行于显示轴的一个显示单元和明亮的单元对齐，并且明亮单元和暗单元相对于凹槽的轴线对角排列。

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