公开(公告)号：US07145572B2

公开(公告)日：2006-12-05

申请号：US10691121

申请日：2003-10-22

申请人： Bodin Dresevic ,  William Hill ,  Gregory C. Hitchcock ,  Leroy B. Keely, Jr. ,  John C. Platt ,  J. Turner Whitted

发明人： Bodin Dresevic ,  William Hill ,  Gregory C. Hitchcock ,  Leroy B. Keely, Jr. ,  John C. Platt ,  J. Turner Whitted

IPC分类号： G09G5/02 ,  G09G5/10

CPC分类号： G09G5/005 ,  A63B69/205 ,  A63B71/023 ,  A63B2071/027 ,  A63B2210/50 ,  G06F1/1607 ,  G09G5/00 ,  G09G5/006 ,  G09G5/02 ,  G09G2320/02 ,  G09G2320/028 ,  G09G2320/06 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2340/0407 ,  G09G2360/144

摘要： The present invention relates to methods and apparatus for increasing the perceived quality of displayed images. This is achieved in a variety of ways including the use of a plurality of device specific display characteristics when preparing images for display. It is also achieved through the monitoring of display device and/or ambient light conditions, e.g., on a periodic basis, and using the obtained information when controlling display output. Another approach to improving the perceived quality of displayed images involves the use of information relating to a specific user's ability to perceive image characteristics such as color. By customizing display output to an individual user's own physical perception capabilities and/or viewing characteristics it is possible to enhance the image quality perceived by the individual viewer as compared to embodiments which do not take into consideration individual user characteristics.

摘要翻译： 本发明涉及增加显示图像感知质量的方法和装置。 这可以通过各种方式实现，包括在准备用于显示的图像时使用多个设备特定的显示特性。 还可以通过例如周期性地监视显示装置和/或环境光条件，并且在控制显示输出时使用获得的信息来实现。 提高显示图像的感知质量的另一种方法涉及使用与特定用户感知诸如颜色的图像特征的能力有关的信息。 通过将显示输出定制为单个用户自己的物理感知能力和/或观看特征，与不考虑个别用户特征的实施例相比，可以增强单个观看者感知到的图像质量。

公开(公告)号：US06750875B1

公开(公告)日：2004-06-15

申请号：US09495771

申请日：2000-02-01

申请人： Leroy B. Keely, Jr. ,  William Hill ,  Geraldine Wade ,  Gregory C. Hitchcock

发明人： Leroy B. Keely, Jr. ,  William Hill ,  Geraldine Wade ,  Gregory C. Hitchcock

IPC分类号： G09G336

CPC分类号： G09G5/28 ,  G09G3/2003 ,  G09G2300/0452 ,  G09G2340/02 ,  G09G2340/0457

摘要： Display devices and image rendering processes increase the resolution of displayed images in the horizontal and vertical dimensions. The increased resolution is obtained on LCD display devices or other display devices having separately controllable pixel sub-components. Assuming the display devices have vertical stripes, much of the increased resolution in the horizontal direction is obtained by mapping spatially different sets of one or more samples to the individual pixel sub-components. In this way, the pixel sub-components are treated as separate luminous intensity sources. The improved resolution in the vertical dimension is achieved by increasing the pixel sub-component density in the vertical dimension. To accommodate the increased number of pixel sub-components, image data compression can be performed if bandwidth limitations are present. The image data compression involves controlling sets of vertically adjacent pixels using red, green, and blue luminous intensity values and a bias value. The red, green, and blue luminous intensity values control the overall luminance of the sets of red, green, and blue pixel sub-components, while the bias value indicates if, and to what extent, the luminance is to be shifted to a particular pixel in the set of pixels.

摘要翻译： 显示设备和图像渲染过程增加了显示图像在水平和垂直维度上的分辨率。 在具有可分开控制的像素子组件的LCD显示装置或其他显示装置上获得增加的分辨率。 假设显示设备具有垂直条纹，通过将空间上不同的一个或多个样本集合映射到各个像素子组件来获得水平方向上增加的分辨率的大部分。 以这种方式，将像素子组件视为单独的发光强度源。 通过在垂直维度上增加像素子分量密度来实现垂直尺寸的改进分辨率。 为了适应增加数量的像素子组件，如果存在带宽限制，则可以执行图像数据压缩。 图像数据压缩涉及使用红色，绿色和蓝色发光强度值和偏置值来控制垂直相邻像素的集合。 红色，绿色和蓝色发光强度值控制红色，绿色和蓝色像素子组件的整体亮度，而偏置值指示亮度是否以及在多大程度上被转移到特定的 像素集中的像素。

公开(公告)号：US06396505B1

公开(公告)日：2002-05-28

申请号：US09301943

申请日：1999-04-29

申请人： Charlton E. Lui ,  Leroy B. Keely, Jr. ,  Gregory C. Hitchcock ,  Ryan E. Cukierman

发明人： Charlton E. Lui ,  Leroy B. Keely, Jr. ,  Gregory C. Hitchcock ,  Ryan E. Cukierman

IPC分类号： G06T1140

CPC分类号： G06T3/4015 ,  G02F1/133514 ,  G02F1/133516 ,  G09G3/2011 ,  G09G3/2074 ,  G09G3/3607 ,  G09G5/02 ,  G09G5/20 ,  G09G5/24 ,  G09G5/28 ,  G09G2300/0452 ,  G09G2310/0235 ,  G09G2320/0276 ,  G09G2340/0457

摘要： Display apparatus, and methods for displaying images, e.g., text, on gray scale and color monitors where each pixel includes multiple pixel sub-components are described. Filtering and/or displaced sampling is used to generate pixel sub-component luminous intensity values. As a result of treating pixel sub-components as distinct light emitters corresponding to different image portions, resolution is enhanced but color errors may be introduced into the image being displayed. Various techniques for detecting noticeable and/or distracting color errors are described. In addition, various techniques for correcting, compensating for, or reducing color errors are described. In one particular embodiment, red, green and blue pixel sub-component luminous intensity values are examined and compared to a range of luminous intensity values which is determined as a function of utilized foreground and background pixel colors. Pixel sub-component luminous intensity values which are determined to be outside the range of acceptable values are adjusted to fall within the range of acceptable values. In one particular embodiment, individual pixel sub-component luminous intensity values outside the range of acceptable values are clamped to the nearer of the foreground or background pixel sub-component luminous intensity value of the correspondingly colored pixel sub-component. In another embodiment sequential red and blue filters are used to reduce or compensate for color distortions.

摘要翻译： 描述在每个像素包括多个像素子组件的灰度级和彩色监视器上显示诸如文本的图像的显示装置和方法。 使用滤波和/或移位采样来产生像素子分量发光强度值。 作为对应于不同图像部分的不同光发射体的像素子部件的处理的结果，增强了分辨率，但是可能将颜色误差引入正被显示的图像。 描述了用于检测明显的和/或分心的颜色错误的各种技术。 另外，描述了用于校正，补偿或减少颜色误差的各种技术。 在一个具体实施例中，检查红色，绿色和蓝色像素子分量发光强度值，并将其与根据利用的前景和背景像素颜色的函数确定的发光强度值的范围进行比较。 被确定为在可接受值范围之外的像素子分量发光强度值被调整为落在可接受值的范围内。 在一个具体实施例中，在可接受值范围之外的各个像素子分量发光强度值被钳位到相应颜色的像素子分量的前景或背景像素子分量发光强度值的更靠近。 在另一个实施例中，使用顺序的红色和蓝色滤光器来减少或补偿颜色失真。

公开(公告)号：US06339426B1

公开(公告)日：2002-01-15

申请号：US09301904

申请日：1999-04-29

申请人： Charlton E. Lui ,  Leroy B. Keely, Jr. ,  Gregory C. Hitchcock ,  Ryan E. Cukierman

发明人： Charlton E. Lui ,  Leroy B. Keely, Jr. ,  Gregory C. Hitchcock ,  Ryan E. Cukierman

IPC分类号： G06T1100

CPC分类号： G06T11/00 ,  G09G5/227 ,  G09G2340/0457 ,  Y10S345/947

摘要： The resolution of text rendered on a display device having sub-pixel elements, such as an RGB LCD for example, and in particular, on a display device having horizontal striping is enhanced by (i) overscaling (or oversampling) character outline information in the vertical (or Y) direction, and (ii) filtering displaced information from the overscaled (or oversampled) character outline information. Metrics associated with character outline information may be appropriately adjusted. The vertical (or Y) position of the baseline of adjacent characters may be constrained by forcing the first pixel above the baseline to be composed of a full number N of scan conversion source samples, where N corresponds to an overscaling (or oversampling) factor. Groups of scan conversion source samples may be converted into packed pixel index values. Color values may be selectively filtered when the differences in the intensity of adjacent sub-pixel elements would otherwise be irritating to view. Finally, the gamma of the pixel values may be corrected so that the gamma of the display device is considered and so that intensity values of sub-pixel elements fall within a range of intensities in which gamma correction is more useful.

摘要翻译： 具有例如RGB LCD，特别是具有水平条纹的显示装置的具有子像素元素的显示装置上的文本的分辨率通过（i）超大（或过采样）中的字符轮廓信息来增强 垂直（或Y）方向，以及（ii）过滤（或过采样）字符轮廓信息中的位移信息。 可以适当地调整与字符轮廓信息相关联的度量。 相邻字符的基线的垂直（或Y）位置可以通过强制基线上方的第一像素由全数N个扫描转换源样本组成，其中N对应于过大的（或过采样）因子。 扫描转换源样本组可以转换为压缩像素索引值。 当相邻子像素元件的强度差异否则将刺激观看时，可以选择性地滤波颜色值。 最后，可以校正像素值的伽马，使得考虑显示装置的伽马，并且使得子像素元件的强度值落在伽马校正更有用的强度范围内。