公开(公告)号：WO2014113487A1

公开(公告)日：2014-07-24

申请号：PCT/US2014/011708

申请日：2014-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： ZENG, Huanzhao ,  LEE, Chong U. ,  HONG, John H.

IPC: H04N1/52

CPC classification number: H04N1/52 ,  H04N1/405

Abstract: Subdividing a color space is described for vector error diffusion which includes obtaining color coordinates for each primary color in the color space, and comparing the color coordinates to a threshold value for each coordinate plane of the color space. In response to the comparing, each primary color is grouped into a quadrant of the color space, wherein each quadrant is defined by the threshold value for each coordinate plane. In other aspects, a mapping a color to a closet primary color is described in a color space that includes a display determining color coordinates of the color and identifying a matching quadrant of a plurality of quadrants dividing the color space, wherein the determined color coordinates fall within the matching quadrant. A representative display device searches for the closest primary color within the matching quadrant and maps the color to the closest primary color found.

Abstract translation: 针对向量误差扩散描述了细分颜色空间，其包括获得颜色空间中的每个基色的颜色坐标，以及将颜色坐标与颜色空间的每个坐标平面的阈值进行比较。 响应于比较，每个基色被分组成颜色空间的象限，其中每个象限由每个坐标平面的阈值定义。 在其他方面，在颜色空间中描述了将颜色映射到衣柜原色的颜色空间，其包括确定颜色的颜色坐标的显示器，并且识别划分颜色空间的多个象限的匹配象限，其中所确定的颜色坐标下降 在匹配象限内。 代表性的显示设备搜索匹配象限内的最接近的原色，并将颜色映射到找到的最接近的原色。

公开(公告)号：EP2956924A1

公开(公告)日：2015-12-23

申请号：EP14706405.9

申请日：2014-02-05

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao ,  MA, Jian J. ,  HONG, John H. ,  LEE, Chong U.

IPC: G09G3/34 ,  G09G3/20 ,  G09G5/06

CPC classification number: G09G5/06 ,  G09G3/2003 ,  G09G3/2025 ,  G09G3/2044 ,  G09G3/2051 ,  G09G3/2059 ,  G09G3/3466 ,  G09G2340/06

Abstract: Disclosed are methods and apparatus for color rendering in a binary high-dimensional output device, for example. The methods and apparatus are configured to receive color space data, and then map the received data to an intermediate color space. From this intermediated space, color rendering is performed using a pre-generated number of extended primary colors for temporal modulation. Each of the pre-generated extended primary colors is made up of a combination of at least two subframes with each subframe having a respective primary color. Through use of temporally modulated, pre-generated extended primaries in the color space, the methods and apparatus afford a reduction in the diffusion error for subsequent neighboring pixels yet to be rendered, particularly when using constrained devices such as binary high-dimensional output devices.

Abstract translation: 本发明公开了在二进制高维输出设备，用于显色性的方法和装置，例如。 这些方法和装置被配置为接收色彩空间的数据，然后在中间颜色空间中的接收到的数据映射。 从该中介空间，显色用的扩展原色时间调制预生成的数目来执行。 所述预生成的扩展基色中的每一个是由至少两个子帧与具有respectivement原色的各子帧的组合。 通过在颜色空间中使用时间调制，预生成的扩展初选的，该方法和装置提供了在扩散误差的减少为后续相邻像素尚未被呈现，特别是当使用受限的设备：诸如二进制高维输出设备。

公开(公告)号：WO2014113488A1

公开(公告)日：2014-07-24

申请号：PCT/US2014/011709

申请日：2014-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： ZENG, Huanzhao ,  MA, Jian J.

IPC: H04N1/405 ,  H04N19/196

CPC classification number: G09G3/2003 ,  G09G3/2066 ,  G09G3/3466 ,  H04N1/4052 ,  H04N19/86

Abstract: A method for reducing bit-depth of image data for an imaging device includes receiving an image frame for display to the imaging device. The method additionally includes applying temporal error diffusion for the image frame to produce a plurality of image subframes, wherein temporal errors generated in one subframe of the image frame are passed to a next subframe of the image frame for temporal error diffusion. The method also includes applying spatial error diffusion to remaining temporal errors from the temporal error diffusion of the image frame.

Abstract translation: 用于降低成像装置的图像数据的位深度的方法包括：接收用于显示的成像装置的图像帧。 该方法还包括对图像帧应用时间误差扩散以产生多个图像子帧，其中在图像帧的一个子帧中产生的时间误差被传递到用于时间误差扩散的图像帧的下一个子帧。 该方法还包括将空间误差扩散应用于来自图像帧的时间误差扩散的剩余时间误差。

公开(公告)号：WO2014126766A1

公开(公告)日：2014-08-21

申请号：PCT/US2014/014931

申请日：2014-02-05

Applicant: QUALCOMM INCORPORATED

Inventor： ZENG, Huanzhao ,  MA, Jian J. ,  HONG, John H. ,  LEE, Chong U.

IPC: G09G3/34 ,  G09G3/20 ,  G09G5/06

CPC classification number: G09G5/06 ,  G09G3/2003 ,  G09G3/2025 ,  G09G3/2044 ,  G09G3/2051 ,  G09G3/2059 ,  G09G3/3466 ,  G09G2340/06

Abstract: Disclosed are methods and apparatus for color rendering in a binary high-dimensional output device, e.g. an Adjustable Interferometric Modulation Display (AIMOD). The methods and apparatus are configured to receive color data of a source color space e.g. sRGB, and then map the received data to an intermediate color space e.g. CIELAB. From this intermediated space, color rendering is performed using a pre-generated number of extended primary colors (900) for temporal modulation. Each of the pre-generated extended primary colors is made up of a combination of at least two subframes (WWW, KKK, PPP, WKP) with each subframe having a respective primary color, i.e. White (W), Black (K) and another Primary Colour (P). Through use of temporally modulated, pre-generated extended primaries in the color space, the methods and apparatus afford a reduction in the diffusion error (904) for subsequent neighboring pixels yet to be rendered, particularly when using constrained devices such as binary high-dimensional output devices.

Abstract translation: 公开了用于二进制高维输出设备中的显色的方法和装置，例如， 可调式干涉调制显示（AIMOD）。 方法和装置被配置为接收源颜色空间的颜色数据，例如 sRGB，然后将接收的数据映射到中间颜色空间，例如。 CIELAB。 从该中间空间，使用用于时间调制的预先生成的扩展原色数（900）来执行显色。 每个预生成的扩展原色由至少两个子帧（WWW，KKK，PPP，WKP）的组合组成，每个子帧具有相应的原色，即白色（W），黑色（K）和另一个 原色（P）。 通过在颜色空间中使用时间调制的预先生成的扩展原色，方法和装置降低了后续相邻像素尚未被渲染的扩散误差（904），特别是当使用诸如二维高维度 输出设备。

公开(公告)号：WO2014158621A1

公开(公告)日：2014-10-02

申请号：PCT/US2014/018790

申请日：2014-02-26

Applicant: QUALCOMM INCORPORATED

Inventor： ZENG, Huanzhao

IPC: G09G3/20 ,  G09G3/34

CPC classification number: G09G5/02 ,  G09G3/2003 ,  G09G3/2066 ,  G09G3/346 ,  G09G3/3466 ,  G09G2340/0428 ,  G09G2340/06

Abstract: A method for color reproduction in a display device includes: receiving spectral color input to be displayed on the display device (300), selecting a primary from a plurality of available primaries that is a closest match of a spectral reflectance of the spectral color input, wherein each of the plurality of available primaries is assigned an association with an associated spectral reflectance (302), displaying the selected primary in a temporal frame of a set of temporal frames for a pixel and passing remaining spectral errors to a next temporal frame of the set of temporal frames (304) and passing remaining spectral errors to neighbor pixels for spatial error diffusion at each spectral band after all temporal frames of the set of temporal frames are used (306).

Abstract translation: 一种显示装置中的色彩还原方法，包括：接收要在显示装置（300）上显示的光谱颜色输入，从多个可用原色中选择与原色输入的光谱反射率最接近匹配的原色， 其中所述多个可用原色中的每一个被分配与相关联的光谱反射率（302）的关联，在一个像素的一组时间帧的时间帧中显示所选择的主要，并将剩余的光谱误差传递到下一个时间帧 （306）的所有时间帧的所有时间帧（304）之后，并且将剩余的光谱误差传递给相邻像素以用于每个频谱带上的空间误差扩散。

公开(公告)号：EP2946544B1

公开(公告)日：2017-02-22

申请号：EP14703480.5

申请日：2014-01-15

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao ,  MA, Jian J.

IPC: H04N1/405 ,  H04N19/196

CPC classification number: G09G3/2003 ,  G09G3/2066 ,  G09G3/3466 ,  H04N1/4052 ,  H04N19/86

公开(公告)号：EP2946544A1

公开(公告)日：2015-11-25

申请号：EP14703480.5

申请日：2014-01-15

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao ,  MA, Jian J.

IPC: H04N1/405 ,  H04N19/196

CPC classification number: G09G3/2003 ,  G09G3/2066 ,  G09G3/3466 ,  H04N1/4052 ,  H04N19/86

Abstract: A method for reducing bit-depth of image data for an imaging device includes receiving an image frame for display to the imaging device. The method additionally includes applying temporal error diffusion for the image frame to produce a plurality of image subframes, wherein temporal errors generated in one subframe of the image frame are passed to a next subframe of the image frame for temporal error diffusion. The method also includes applying spatial error diffusion to remaining temporal errors from the temporal error diffusion of the image frame.

Abstract translation: 用于降低成像装置的图像数据的位深度的方法包括：接收用于显示的成像装置的图像帧。 该方法另外包括对图像帧应用时间误差扩散以产生多个图像子帧，其中在图像帧的一个子帧中产生的时间误差被传递到用于时间误差扩散的图像帧的下一个子帧。 该方法还包括将空间误差扩散应用于来自图像帧的时间误差扩散的剩余时间误差。

公开(公告)号：EP2973527A1

公开(公告)日：2016-01-20

申请号：EP14711650.3

申请日：2014-02-26

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao

IPC: G09G3/20 ,  G09G3/34

CPC classification number: G09G5/02 ,  G09G3/2003 ,  G09G3/2066 ,  G09G3/346 ,  G09G3/3466 ,  G09G2340/0428 ,  G09G2340/06

Abstract: A method for color reproduction in a display device includes receiving spectral color input to be displayed on the display device. The method additionally includes selecting a primary from a plurality of available primaries that is a closest match of a spectral reflectance of the spectral color input, wherein each of the plurality of available primaries is assigned an association with an associated spectral reflectance. The method also includes displaying the selected primary in a temporal frame of a set of temporal frames for a pixel and passing remaining spectral errors to a next temporal frame of the set of temporal frames. The method further includes passing remaining spectral errors to neighbor pixels for spatial error diffusion at each spectral band after all temporal frames of the set of temporal frames are used.

Abstract translation: 一种显示装置中的色彩还原方法，包括：接收待显示在显示装置上的光谱颜色输入。 该方法另外包括从多个可用原色中选择一个主要光谱，其是光谱颜色输入的光谱反射率的最接近匹配，其中多个可用原色中的每一个被分配与相关联的光谱反射率的关联。 该方法还包括在用于像素的一组时间帧的时间帧中显示所选择的主要，并将剩余的频谱误差传递到该组时间帧的下一个时间帧。 所述方法还包括在使用所述一组时间帧的所有时间帧之后，在每个频谱带处将剩余的频谱误差传递给相邻像素用于空间误差扩散。

公开(公告)号：EP2946545A1

公开(公告)日：2015-11-25

申请号：EP14703479.7

申请日：2014-01-15

Applicant: Qualcomm Incorporated

Inventor： ZENG, Huanzhao ,  LEE, Chong U. ,  HONG, John H.

IPC: H04N1/52

CPC classification number: H04N1/52 ,  H04N1/405

Abstract: Subdividing a color space is described for vector error diffusion which includes obtaining color coordinates for each primary color in the color space, and comparing the color coordinates to a threshold value for each coordinate plane of the color space. In response to the comparing, each primary color is grouped into a quadrant of the color space, wherein each quadrant is defined by the threshold value for each coordinate plane. In other aspects, a mapping a color to a closet primary color is described in a color space that includes a display determining color coordinates of the color and identifying a matching quadrant of a plurality of quadrants dividing the color space, wherein the determined color coordinates fall within the matching quadrant. A representative display device searches for the closest primary color within the matching quadrant and maps the color to the closest primary color found.