Zone-based tone mapping
    2.
    发明授权
    Zone-based tone mapping 有权
    基于区域的色调映射

    公开(公告)号:US09087382B2

    公开(公告)日:2015-07-21

    申请号:US13381224

    申请日:2010-06-29

    申请人: Jiefu Zhai Joan Llach

    发明人: Jiefu Zhai Joan Llach

    IPC分类号: G09G5/02 G06T5/00

    摘要: A method of tone mapping high dynamic range images for display on low dynamic range displays wherein a high dynamic range image is first accessed. The high dynamic range image is segmented into different regions such that each region is represented by a matrix, where each element of the matrix is a weight or probability of a pixel. An exposure of each region is determined or calculated and the exposure values are applied to the regions responsive to the weight or probability. The different regions are then fused together to obtain a final tone mapped image.

    摘要翻译: 一种色调映射高动态范围图像的方法,用于在低动态范围显示器上显示,其中首先访问高动态范围图像。 高动态范围图像被分割成不同的区域,使得每个区域由矩阵表示,其中矩阵的每个元素是像素的权重或概率。 确定或计算每个区域的曝光,并且将曝光值应用于响应于重量或概率的区域。 然后将不同的区域融合在一起以获得最终的色调映射图像。

    SYSTEM AND METHOD FOR TRINOCULAR DEPTH ACQUISITION WITH TRIANGULAR SENSOR
    3.
    发明申请
    SYSTEM AND METHOD FOR TRINOCULAR DEPTH ACQUISITION WITH TRIANGULAR SENSOR 审中-公开
    用三角波传感器进行三角波深度采集的系统和方法

    公开(公告)号:US20130258067A1

    公开(公告)日:2013-10-03

    申请号:US13991636

    申请日:2010-12-08

    IPC分类号: H04N13/02

    摘要: A depth acquisition system utilizes at least three sensors with at least one sensor in a non-colinear configuration to increase depth information. This configuration provides both vertical and horizontal depth information to be combined to enhance image quality, especially in three-dimensional image gathering. Vertical sensor pairs aid in determining disparities for horizontal edges and make depth estimations for horizontal edges more accurate.

    摘要翻译: 深度采集系统利用至少三个具有非共线配置中的至少一个传感器的传感器来增加深度信息。 该配置提供要组合的垂直和水平深度信息以增强图像质量,特别是在三维图像采集中。 垂直传感器对有助于确定水平边缘的差异,并使水平边缘的深度估计更准确。

    JOINT FRAME RATE AND RESOLUTION ADAPTATION
    5.
    发明申请
    JOINT FRAME RATE AND RESOLUTION ADAPTATION 有权
    联合框架速度和分辨率适应

    公开(公告)号:US20120195372A1

    公开(公告)日:2012-08-02

    申请号:US13018298

    申请日:2011-01-31

    IPC分类号: H04N7/32 H04N7/12

    摘要: A video coder employs techniques for applying frame rate adaptation and variable resolution adaptation in response to environmental coding factors present at the coding terminal. According to such techniques, a coder may estimate a coding quality level to be applied based on the environmental coding factors. The coder may retrieve from a controller table, settings for resolution and frame rate based on the estimated quality level. Optionally, the coder further may retrieve settings identifying a range of quantization parameters that may be used during coding. Prior to coding, the coder may configure input video data to match the resolution and frame rate settings retrieved from the controller table. Thereafter, the coder may code the reconfigured input video data by motion-compensation prediction constrained, as applicable, by the retrieved quantization parameter range.

    摘要翻译: 视频编码器根据存在于编码终端处的环境编码因素,采用应用帧速率适配和可变分辨率自适应的技术。 根据这样的技术,编码器可以基于环境编码因素估计要应用的编码质量等级。 编码器可以根据估计的质量水平从控制器表检索分辨率和帧速率的设置。 可选地,编码器还可以检索识别可能在编码期间使用的量化参数的范围的设置。 在编码之前,编码器可以配置输入视频数据以匹配从控制器表检索的分辨率和帧率设置。 此后,编码器可以通过运动补偿预测约束(如适用)通过检索的量化参数范围对重新配置的输入视频数据进行编码。

    Joint frame rate and resolution adaptation
    6.
    发明授权
    Joint frame rate and resolution adaptation 有权
    联合帧速率和分辨率适应

    公开(公告)号:US09215466B2

    公开(公告)日:2015-12-15

    申请号:US13018298

    申请日:2011-01-31

    摘要: A video coder employs techniques for applying frame rate adaptation and variable resolution adaptation in response to environmental coding factors present at the coding terminal. According to such techniques, a coder may estimate a coding quality level to be applied based on the environmental coding factors. The coder may retrieve from a controller table, settings for resolution and frame rate based on the estimated quality level. Optionally, the coder further may retrieve settings identifying a range of quantization parameters that may be used during coding. Prior to coding, the coder may configure input video data to match the resolution and frame rate settings retrieved from the controller table. Thereafter, the coder may code the reconfigured input video data by motion-compensation prediction constrained, as applicable, by the retrieved quantization parameter range.

    摘要翻译: 视频编码器根据存在于编码终端处的环境编码因素,采用应用帧速率适配和可变分辨率自适应的技术。 根据这样的技术,编码器可以基于环境编码因素估计要应用的编码质量等级。 编码器可以根据估计的质量水平从控制器表检索分辨率和帧速率的设置。 可选地,编码器还可以检索识别可能在编码期间使用的量化参数的范围的设置。 在编码之前,编码器可以配置输入视频数据以匹配从控制器表检索的分辨率和帧率设置。 此后,编码器可以通过运动补偿预测约束(如适用)通过检索的量化参数范围对重新配置的输入视频数据进行编码。

    Parameters interpolation for high dynamic range video tone mapping
    7.
    发明授权
    Parameters interpolation for high dynamic range video tone mapping 有权
    高动态范围视频色调映射的参数插值

    公开(公告)号:US08737738B2

    公开(公告)日:2014-05-27

    申请号:US13579401

    申请日:2011-02-11

    申请人: Zhe Wang Jiefu Zhai

    发明人: Zhe Wang Jiefu Zhai

    IPC分类号: G06K9/00

    摘要: A method for toning mapping high dynamic range (HDR) video for display in low dynamic range display comprises accessing the HDR video; producing a luminance information for the individual frames; partitioning different consecutive groups of frames into segments responsive to the luminance information; classifying the segments into static luminance segments and transient luminance segments; producing a tone mapping parameter set for the static luminance segments; producing a tone mapping parameter set for at least one of the transient luminance segments responsive to the tone mapping parameter set of an adjacent static luminance segment; and tone mapping the static luminance segments and transient luminance segments according to the respective tone mapping parameter sets.

    摘要翻译: 用于色调映射高动态范围(HDR)视频以在低动态范围显示中显示的方法包括访问HDR视频; 产生各个帧的亮度信息; 响应于亮度信息将不同连续的帧组划分成段; 将段分为静态亮度段和瞬态亮度段; 产生用于静态亮度段的色调映射参数集; 响应于相邻静态亮度段的色调映射参数集,产生针对所述瞬态亮度段中的至少一个的色调映射参数集; 以及根据各个色调映射参数组对静态亮度段和瞬态亮度段进行色调映射。

    Contrast enhancement
    8.
    发明授权
    Contrast enhancement 失效
    对比度增强

    公开(公告)号:US08639056B2

    公开(公告)日:2014-01-28

    申请号:US13376920

    申请日:2010-06-28

    申请人: Jiefu Zhai Joan Llach

    发明人: Jiefu Zhai Joan Llach

    IPC分类号: G06K9/40

    摘要: A method according to the invention enhances contrast of an image by accessing an original image, and establishing, assigning, or initializing pixel values and pixel coordinates of pixels of the image. Then, a Laplacian pyramid having an integral number of levels is generated for the image. A contrast boost pyramid is generated and applied to the Laplacian pyramid to obtain a modified Laplacian pyramid wherein values in the levels of the Laplacian pyramid are enhanced. An enhanced image is then constructed from the modified Laplacian pyramid.

    摘要翻译: 根据本发明的方法通过访问原始图像来增强图像的对比度,并且建立,分配或初始化图像的像素的像素值和像素坐标。 然后,为图像生成具有整数级别的拉普拉斯金字塔。 生成对比度增强金字塔并将其应用于拉普拉斯金字塔,以获得改进的拉普拉斯金字塔,其中拉普拉斯金字塔的水平值增加。 然后从修改的拉普拉斯金字塔构建增强图像。

    INTERACTIVE TONE MAPPING FOR HIGH DYNAMIC RANGE VIDEO
    9.
    发明申请
    INTERACTIVE TONE MAPPING FOR HIGH DYNAMIC RANGE VIDEO 有权
    用于高动态范围视频的交互式色调映射

    公开(公告)号:US20120237130A1

    公开(公告)日:2012-09-20

    申请号:US13395887

    申请日:2010-09-14

    IPC分类号: G06K9/64 G06K9/36

    摘要: A user interactive video tone mapping method is provided that can be used for the tone reproduction of high dynamic range (HDR) content on low dynamic range (LDR) displays. The method comprises the steps of selecting a frame of a video sequence; providing a user interface for a user to manually apply scribble marks to the frame; manually applying N scribble marks to the frame, N being a whole number of value 1 or in greater; and tone mapping the video sequence responsive to the scribble marks.

    摘要翻译: 提供了可用于低动态范围(LDR)显示器上的高动态范围(HDR)内容的色调再现的用户交互式视频色调映射方法。 该方法包括以下步骤:选择视频序列的帧; 提供用户界面以便用户手动地将涂鸦标记应用于所述框架; 手动将N个涂抹标记应用到框架中,N为值1或更大的整数; 并且响应于涂鸦标记对视频序列进行色调映射。

    CONTRAST ENHANCEMENT
    10.
    发明申请
    CONTRAST ENHANCEMENT 失效
    对比度增强

    公开(公告)号:US20120082397A1

    公开(公告)日:2012-04-05

    申请号:US13376920

    申请日:2010-06-28

    申请人: Jiefu Zhai Joan Llach

    发明人: Jiefu Zhai Joan Llach

    IPC分类号: G06K9/40

    摘要: A method according to the invention enhances contrast of an image by accessing an original image, and establishing, assigning, or initializing pixel values and pixel coordinates of pixels of the image. Then, a Laplacian pyramid having an integral number of levels is generated for the image. A contrast boost pyramid is generated and applied to the Laplacian pyramid to obtain a modified Laplacian pyramid wherein values in the levels of the Laplacian pyramid are enhanced. An enhanced image is then constructed from the modified Laplacian pyramid.

    摘要翻译: 根据本发明的方法通过访问原始图像来增强图像的对比度,并且建立,分配或初始化图像的像素的像素值和像素坐标。 然后,为图像生成具有整数级别的拉普拉斯金字塔。 生成对比度增强金字塔并将其应用于拉普拉斯金字塔,以获得改进的拉普拉斯金字塔,其中拉普拉斯金字塔的水平值增加。 然后从修改的拉普拉斯金字塔构建增强图像。