公开(公告)号：US20130250062A1

公开(公告)日：2013-09-26

申请号：US13426536

申请日：2012-03-21

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: H04N13/02

CPC classification number: H04N13/204 ,  G06T7/85 ,  H04N13/122 ,  H04N13/128 ,  H04N13/296

Abstract: Stereoscopic image capture is provided. A blur value expected for multiple pixels in left and right images is predicted. The blur value is predicted based on designated capture settings. A disparity value expected for multiple pixels in the left and right images is predicted. The disparity value is predicted based on the designated capture settings. Stressed pixels are identified by comparing the predicted disparity value to a lower bound of disparity value determined from the predicted blur value using a predetermined model. A pixel with predicted disparity value less than the lower bound is identified as a stressed pixel. The predicted disparity is adjusted by modifying the designated capture settings to reduce the number of stressed pixels, or an alert to the presence of stressed pixels is given to the user.

Abstract translation: 提供立体图像捕获。 预测左图像和右图像中的多个像素的模糊值。 基于指定的捕获设置来预测模糊值。 预测左图像和右图像中的多个像素的视差值。 基于指定的捕获设置预测差异值。 通过使用预定模型将预测的视差值与由预测的模糊值确定的视差值的下限进行比较来识别被加权的像素。 具有小于下限的预测视差值的像素被识别为应力像素。 通过修改指定的捕获设置来减少受压像素的数量来调整预测的差异，或者向用户发出对应力像素的存在的警报。

公开(公告)号：US08542402B2

公开(公告)日：2013-09-24

申请号：US12642452

申请日：2009-12-18

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G06F15/00 ,  G06F3/08 ,  G06K1/00 ,  G06K9/00

CPC classification number: H04N1/6033 ,  G09G2340/06 ,  H04N1/6058

Abstract: Determining a spectral gamut of a device by designating a spanning set of samples which span the spectral gamut. A first crude spanning set of samples is established by specifying one or more corresponding device values in a device color space. The first crude spanning set is refined by processing a plurality of new samples in a predetermined order. The processing includes, for each new sample, determining if the new sample differs in an objective function value by more than a predetermined threshold from all samples in the first crude spanning set and adding the new sample to the first crude spanning set if the new sample differs in the objective function value by more than the predetermined threshold. The resulting first crude spanning set is designated as the spanning set of samples.

Abstract translation: 通过指定跨越光谱色域的一组样本，确定器件的色域。 通过在设备颜色空间中指定一个或多个对应的设备值来建立第一个原始跨样本集合。 通过以预定顺序处理多个新样本来精炼第一粗生成集。 对于每个新样本，处理包括：如果新样本在目标函数值中是否不同于第一粗生成集合中的所有样本的预定阈值大于预定阈值，并将新样本添加到第一粗生成集合中，如果新样本 目标函数值不同于预定阈值。 所得到的第一粗生成组被指定为跨越样本集。

公开(公告)号：US08334883B2

公开(公告)日：2012-12-18

申请号：US12494229

申请日：2009-06-29

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G09G5/10

CPC classification number: G09G3/2003 ,  G09G2340/06 ,  G09G2360/144

Abstract: Image display which accesses an image containing multispectral data and a spectral device model for a reflective display. The reflective display renders the image by modulation of an ambient illuminant and is driven by color primary signals for corresponding color primaries. A spectral power distribution of a direct irradiance of a current ambient illuminant is cyclically and repetitively estimated by using a measurement of the spectral power distribution of the direct irradiance of the current ambient illuminant. Color primary signals are determined by using the estimation of the spectral power distribution of the direct irradiance of the current ambient illuminant, the spectral device model, and the multispectral image data. The reflective display is driven by the determined color primary signals, such that the multispectral image data rendered on the reflective display simulates the appearance of the multispectral image data calorimetrically under the current ambient illuminant.

Abstract translation: 图像显示，其访问包含多光谱数据的图像和用于反射显示的光谱设备模型。 反射显示器通过调制环境光源来呈现图像，并且通过用于相应颜色原色的彩色主信号驱动。 通过使用当前环境光源的直接辐照度的光谱功率分布的测量来循环地和重复地估计当前环境光源的直接辐照度的光谱功率分布。 通过使用当前环境光源，光谱设备模型和多光谱图像数据的直接辐照度的光谱功率分布的估计来确定颜色主信号。 反射显示由所确定的颜色主信号驱动，使得在反射显示器上呈现的多光谱图像数据在当前环境光源下模拟多光谱图像数据的量测。

公开(公告)号：US20110141104A1

公开(公告)日：2011-06-16

申请号：US12637615

申请日：2009-12-14

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G06T15/00

CPC classification number: H04N13/133 ,  H04N13/15

Abstract: Stereoscopic color management of images with plural views. Image data for each view is defined in a component input device color space. Image data in the component input device color spaces is converted to a nominal source color space using plural input transforms each corresponding to one of the plural views. A rendering transform is used to convert image data for each view in the nominal source color space to a nominal destination color space. The nominal source color space, nominal destination color space and rendering transform are the same for all views. The image data for each view in the nominal destination color space is ultimately converted to a component output device color space associated with a stereoscopic output device respective of the view using a respective output transform.

Abstract translation: 具有多视图的立体视觉颜色管理。 每个视图的图像数据在组件输入设备颜色空间中定义。 使用与多个视图中的一个相对应的多个输入变换将分量输入装置色彩空间中的图像数据转换为标称源色彩空间。 渲染变换用于将标称源色彩空间中的每个视图的图像数据转换为标称目标色彩空间。 标称源色彩空间，标称目标颜色空间和渲染变换对于所有视图都是相同的。 在标称目标色彩空间中的每个视图的图像数据最终被转换成与使用相应输出变换的视图相对应的立体输出设备相关联的分量输出设备颜色空间。

公开(公告)号：US20110122426A1

公开(公告)日：2011-05-26

申请号：US12625552

申请日：2009-11-24

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: H04N1/60

CPC classification number: H04N1/6058

Abstract: Color management in which a spectral gamut is determined for spectral gamut mapping by constructing subdivisions of a set of samples spanning the spectral gamut. The samples are designated by specifying device values and are subdivided based on their lightness, chroma and hue under a reference illuminant such that the number of samples in each subdivision is limited by a predetermined number. A color value to be spectrally gamut mapped is accepted, and converted into a colorimetric value under the reference illuminant. The converted colorimetric value includes a lightness, a chroma and a hue. Subdivisions within a tolerance of the converted colorimetric value are identified using its lightness, chroma and hue. Samples within the identified subdivisions are searched to find a sample that matches acceptably to the color value relative to an objective function.

Abstract translation: 通过构建跨越光谱色域的一组样本的细分来确定色域映射的色域的色彩管理。 通过指定装置值指定样品，并且根据参考光源下的亮度，色度和色调将其细分，使得每个细分中的样品数量受到预定数量的限制。 接受要进行光谱色域映射的颜色值，并将其转换为参考光源下的比色值。 转换的比色值包括亮度，色度和色调。 使用其亮度，色度和色调来确定转化色度值的公差范围内的细分。 搜索所识别的子部分中的样本，以找到相对于目标函数可接受地匹配颜色值的样本。

公开(公告)号：US07860304B2

公开(公告)日：2010-12-28

申请号：US11609280

申请日：2006-12-11

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G06K9/00

CPC classification number: G06K9/209 ,  H04N1/46

Abstract: Generation of basis functions for spectral reflectances of color samples is provided. Reflectance information of the color samples is input, the reflectance information is weighted with a weighting function based on a wavelength dependence of an optical sensor, and the weighted information is analyzed to obtain the basis functions. Basis functions for illuminants are generated by inputting reflectance and associated information of the color samples, inputting illuminant information, constructing a matrix of weighted tristimulus values, and analyzing the matrix to obtain the basis functions. A weighting function for an optical sensor is generated by inputting a first weighting function, based on transformation of a reflectance perturbation from a reflectance space into a color space of the sensor, calculating the first weighting function with predetermined stimuli to obtain a plurality of resulting functions, and averaging the resulting functions to obtain the weighting function for the sensor.

Abstract translation: 提供了颜色样本的光谱反射率的基函数的生成。 输入颜色样本的反射信息，以基于光学传感器的波长依赖性的加权函数对反射信息进行加权，分析加权信息以获得基本功能。 通过输入颜色样本的反射率和相关信息，输入光源信息，构造加权三刺激值矩阵，分析矩阵获得基函数，产生光源的基础功能。 通过基于从反射空间到反射率空间的反射率扰动的变换输入第一加权函数来生成光学传感器的加权函数，用预定的刺激计算第一加权函数以获得多个所得到的函数 并且对所得到的函数求平均以获得传感器的加权函数。

公开(公告)号：US07702146B2

公开(公告)日：2010-04-20

申请号：US10840089

申请日：2004-05-06

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G06K9/00

CPC classification number: H04N1/6058 ,  G06T11/001

Abstract: A method for correcting a color value generated by a forward model for a color input device. A color value generated by the forward model is mapped into a color space. The color value is clipped to a locus of a visual gamut in the color space if the color value falls outside of the visual gamut. Clipping the mapped color value ensures that the color input device generates color values that represent colors within the human visual system. Clipping may be accomplished by clipping a color value to an intersection of a locus boundary and a vector between the color value and a white point. The locus used may be the CIE spectral locus projected into the color space. Any number of standard color spaces may be used in the method, such as CIEXYZ, CIELUV, or CIELAB.

Abstract translation: 一种用于校正由颜色输入装置的正向模型生成的颜色值的方法。 由前向模型生成的颜色值映射到颜色空间。 如果颜色值落在视觉色域之外，则颜色值被剪切到颜色空间中的视觉色域的轨迹。 剪切映射的颜色值可确保颜色输入设备生成表示人类视觉系统中颜色的颜色值。 剪切可以通过将颜色值剪切到色彩值和白点之间的轨迹边界和矢量的交点来实现。 所使用的轨迹可以是投射到颜色空间中的CIE光谱轨迹。 在该方法中可以使用任何数量的标准颜色空间，例如CIEXYZ，CIELUV或CIELAB。

公开(公告)号：US20100085586A1

公开(公告)日：2010-04-08

申请号：US12285438

申请日：2008-10-06

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: H04N1/60

CPC classification number: H04N1/6033

Abstract: With respect to color characterization of color printers, the present disclosure relates to the identification of colorant combinations for color patches in a color characterization target, which contains different color patches, and which is measured calorimetrically or spectrally to color-characterize the printer. A black ramp is printed and measured. Substantially uniform steps on the ramp are selected by applying principal component analysis to the measured values or color values derived from the measured values, and by using a first principal component thereof to select the substantially uniform steps. For each of the substantially uniform steps identified, the above procedure is repeated on all chromatic ramps with black ink at a corresponding black level. Color values of the color patches are populated by using multiple combinations of the substantially uniform steps of the black channel and of the chromatic channels at the corresponding black levels that meet an ink limit.

Abstract translation: 关于彩色打印机的颜色表征，本公开内容涉及在颜色表征目标中的色块的着色剂组合的识别，所述着色剂组合包含不同的色块，并且通过量热或光谱测量以对打印机进行颜色表征。 打印并测量黑色斜坡。 通过将主成分分析应用于从测量值导出的测量值或颜色值，并且通过使用其第一主要成分来选择基本均匀的步骤来选择斜坡上的基本均匀的步骤。 对于所标识的每个基本上均匀的步骤，在具有相应黑色电平的黑色墨水的所有彩色斜坡上重复上述过程。 通过使用满足墨水限制的相应黑色电平的黑色通道和色彩通道的基本均匀的步骤的多个组合来填充色块的颜色值。

公开(公告)号：US20090185200A1

公开(公告)日：2009-07-23

申请号：US12011318

申请日：2008-01-23

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: H04N1/60

CPC classification number: H04N1/6058

Abstract: Mapping spectral colors in an Interim Connection Space (ICS) of a full spectral space based on an objective function is provided. A spectral color value in the ICS is accessed, and a spectral gamut boundary of the destination gamut is accessed. The spectral color value is mapped into mapped spectral color value based on minimization of an objective function of coordinates of a first subspace of the ICS, by fixing coordinates of a second subspace of the ICS, subject to a constraint that a result is within the spectral gamut boundary. The first subspace is a null space of a transformation from the ICS to a color space, while the second subspace is an orthogonal complement of the first subspace in the ICS. The constraint is determined by a gamut section that is an intersection of the spectral gamut in the ICS and an affine subspace characterized by the fixed coordinates of the second subspace.

Abstract translation: 提供了基于目标函数的全光谱空间的中间连接空间（ICS）中的光谱颜色映射。 访问ICS中的光谱颜色值，并访问目标色域的色域边界。 基于ICS的第一子空间的坐标的目标函数的最小化，通过固定ICS的第二子空间的坐标，光谱颜色值被映射到映射的光谱颜色值，受限于结果在光谱内 色域边界 第一个子空间是从ICS到颜色空间的变换的零空间，而第二个子空间是ICS中第一个子空间的正交互补。 该约束由作为ICS中的色域和与第二子空间的固定坐标表征的仿射子空间的交集的色域部分确定。

公开(公告)号：US07414631B2

公开(公告)日：2008-08-19

申请号：US11220751

申请日：2005-09-08

Applicant: Siu-Kei Tin

Inventor： Siu-Kei Tin

IPC: G09G5/02

CPC classification number: H04N1/6058

Abstract: An improvement to sigmoidal gaussian cusp knee (SGCK) gamut mapping algorithm useful for gamut boundary descriptors (GBDs) that are defined with multiple shells rather than a single hull. The gamut mapping algorithm involves a lightness-rescaling step and a chroma compression step, in which points on each of the shells of the source GBD are mapped to corresponding points on the respective shells of the destination GBD. In situations where there is a mismatch between the number of shells in the source GBD and the destination GBD, such as a case where one of the GBDs is defined by a singly-shelled GBD whereas the other is defined by a two-shelled GBD, an induced hue slice may be constructed so as to simulate the missing shell. In addition, an induced hue slice may be constructed in a situation where lightness rescaling results in a mapping that is too steep between source and destination.

Abstract translation: Sigmoidal高斯尖点膝盖（SGCK）色域映射算法的改进对于使用多个壳而不是单个船体定义的色域边界描述符（GBD）是有用的。 色域映射算法涉及亮度重新缩放步骤和色度压缩步骤，其中源GBD的每个壳上的点被映射到目的地GBD的相应外壳上的对应点。 在源GBD中的shell数目与目标GBD之间存在不匹配的情况下，例如其中一个GBD由单壳GBD定义而另一个由双壳GBD定义的情况， 可以构造诱导色调片，以便模拟缺失的外壳。 此外，可以在亮度重新缩放导致在源和目的地之间太陡峭的映射的情况下构造感应色调片。