DEVICE, SYSTEM AND METHOD FOR CHARACTERIZING A COLOUR DEVICE
    31.
    发明公开
    DEVICE, SYSTEM AND METHOD FOR CHARACTERIZING A COLOUR DEVICE 审中-公开
    装置和系统用于表征一种颜色装置

    公开(公告)号:EP2005730A1

    公开(公告)日:2008-12-24

    申请号:EP07727981.8

    申请日:2007-04-11

    申请人: Thomson Licensing

    IPC分类号: H04N1/60 H04N9/64 H04N17/00

    摘要: A method for characterising a colour device (401). A first transform (305) is calculated (304) from first input colours (302) and first output colours (303) measured (301) by an optical instrument (403). An intermediate set of output colour values (306) is obtained and transformed (307), using the transform (305), into a second set of input colour values (308), which are used to obtain (309) a second set of output colour values (310). The second sets of input and output colour values (308, 310) are used to calculate (311) a second transform (312). By a judicious choice of intermediate output colour values, e.g. in the Lab colour space, it is possible to obtain a transform that is extra accurate for colours for which the eye is especially sensible. Also provided are a system and a device.

    METHOD AND DEVICE FOR DETECTING THE ORIENTATION OF AN IMAGE
    32.
    发明公开
    METHOD AND DEVICE FOR DETECTING THE ORIENTATION OF AN IMAGE 审中-公开
    用于检测图像定向的方法和设备

    公开(公告)号:EP1721294A1

    公开(公告)日:2006-11-15

    申请号:EP05701436.7

    申请日:2005-01-04

    申请人: Thomson Licensing

    IPC分类号: G06T7/00 H04N1/387

    摘要: The method involves selecting a reference image from a set of images, and detecting an orientation of an image based on the orientation of the reference image. Sub-pictures of the image and the reference image are determined. The sub-pictures have the same size with respect to the image in which are positioned the sub-pictures. A visual distance between the image and the reference image is calculated. An independent claim is also included for a device of detecting orientation of an image in a set of images.

    摘要翻译: 本发明涉及用于检测一组图像中的图像的方向的方法和设备。 根据本发明,该方法包括以下步骤:从该组图像中选择参考图像,检测作为所述参考图像的取向的函数的所述图像的取向。 参考图像是其先验已知的方向的图像。

    PROCESS AND DEVICE FOR ACCESS TO MULTIMEDIA ELEMENTS BY MEANS OF IMAGES ASSOCIATED WITH THESE ELEMENTS
    33.
    发明公开
    PROCESS AND DEVICE FOR ACCESS TO MULTIMEDIA ELEMENTS BY MEANS OF IMAGES ASSOCIATED WITH THESE ELEMENTS 审中-公开
    方法和设备用于接入多媒体元素使用这些元素相关的图像

    公开(公告)号:EP1579350A1

    公开(公告)日:2005-09-28

    申请号:EP03796108.3

    申请日:2003-12-17

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30274

    摘要: The invention relates to a process for access to multimedia elements stored by means of digital data, an image (a, b, c, d, e, ..., m, n) being associated with each element so as to control access to the latter. In accordance with the invention, such a process is characterized in that, when one wishes to access one of these elements, a first group of images (b, c, e, f, g; a, j, e, f, g) associated with first elements is displayed, and means for displaying a second group of images (i, e, k, m, n; b, c, e, k, m) associated with second elements, which group is distinct from the first group of images, is associated with at least one of these displayed images (e).

    DEVICE, SERVER, SYSTEM AND METHOD TO GENERATE MUTUAL PHOTOMETRIC EFFECTS
    34.
    发明公开
    DEVICE, SERVER, SYSTEM AND METHOD TO GENERATE MUTUAL PHOTOMETRIC EFFECTS 有权
    装置生产的相互影响光度

    公开(公告)号:EP1415280A1

    公开(公告)日:2004-05-06

    申请号:EP02730225.6

    申请日:2002-04-30

    IPC分类号: G06T15/50

    CPC分类号: G06T15/50

    摘要: The invention concerns a device for generating mutual photometric effects. The invention concerns also a server for delivering photometric parameters for generating mutual photometric effects and a system including such a device and such a server. According to the invention the device (1) comprises - means for receiving and demultiplexing said visual data sets and photometric parameters respectively associated with said data sets, - means for defining said mutual photometric effects to be generated for these photometric parameters, - composition and rendering means for positioning said visual data sets in said common support space and applying said effects defined for said photometric parameters from at least one of said visual data sets to at least one other of said visual data sets so that at least one visual data set influences one other visual data set in said common support space.

    DETERMINATION OF CHROMA MAPPING FUNCTIONS BASED ON HUE ANGULAR SECTORS PARTITIONING THE MAPPING COLOR SPACE
    36.
    发明公开
    DETERMINATION OF CHROMA MAPPING FUNCTIONS BASED ON HUE ANGULAR SECTORS PARTITIONING THE MAPPING COLOR SPACE 审中-公开
    基于色调角部分映射色空间的色度映射函数的确定

    公开(公告)号:EP3301901A1

    公开(公告)日:2018-04-04

    申请号:EP16306247.4

    申请日:2016-09-28

    申请人: Thomson Licensing

    IPC分类号: H04N1/60 H04N9/67

    CPC分类号: H04N1/6058 H04N9/67

    摘要: This determination comprises : defining key constant-hue leaves such as to partition the gamut mapping color space into angular hue sectors ; for each key constant hue leaf, defining a key hue leaf chroma mapping function ; for each angular hue sector, defining a continuous angular hue sector chroma mapping function such that, for any source color belonging to one of the two key constant-hue leaves delimiting this angular hue sector, this continuous chroma mapping function allows to map the chroma of said source color according to the key hue leaf chroma mapping function of the key constant-hue leaf to which said source color belongs. Preferably, this mapping functions are non linear polynomials.

    摘要翻译: 该确定包括:定义关键恒定色调叶,以便将色域映射色彩空间划分为角色调扇区; 对于每个关键恒定色调叶,定义关键色调叶色度映射函数; 对于每个角度色调扇区,定义连续角度色调扇区色度映射函数,使得对于属于界定该角度色调扇区的两个关键恒定色调叶片之一的任何源颜色,该连续色度映射函数允许将色度 所述源色根据所述源色所属的关键恒色叶的关键色调叶色度映射函数。 优选地,这种映射函数是非线性多项式。

    METHOD OF MAPPING SOURCE COLORS OF AN IMAGE USING A LUT HAVING INPUT COLORS OUTSIDE A SOURCE COLOR GAMUT
    37.
    发明公开
    METHOD OF MAPPING SOURCE COLORS OF AN IMAGE USING A LUT HAVING INPUT COLORS OUTSIDE A SOURCE COLOR GAMUT 审中-公开
    使用具有输入颜色的LUT来源映射源图像的源色彩的方法

    公开(公告)号:EP3255873A1

    公开(公告)日:2017-12-13

    申请号:EP16305699.7

    申请日:2016-06-10

    申请人: Thomson Licensing

    IPC分类号: H04N1/60

    摘要: According to this method, the mapping color LUT has input colors that sample not only a source color gamut (included in an input encoding color space in which inputs colors of this LUT are encoded) but at least a portion of the input encoding color space which is not included in the source color gamut. Preferably, this color LUT further includes output colors located outside the target color gamut. Accuracy of the mapping is improved, notably for source colors located near the boundary of the source color gamut.

    摘要翻译: 根据该方法,映射颜色LUT具有输入颜色,该输入颜色不仅对源颜色域(包括在其中编码该LUT的输入颜色的输入编码颜色空间中)进行采样,而且对输入编码颜色空间的至少一部分 不包含在源色域中。 优选地,该颜色LUT进一步包括位于目标色域之外的输出颜色。 映射的准确性得到改善,特别是对于位于源色域边界附近的源色彩。

    Method of processing of a compressed image into a gamut mapped image using spatial frequency analysis
    39.
    发明公开
    Method of processing of a compressed image into a gamut mapped image using spatial frequency analysis 有权
    Verfahren zur Verarbeitung eines komprimierten Bildes in ein Farbskalenbild miträumlicherFrequenzanalyse

    公开(公告)号:EP2120449A1

    公开(公告)日:2009-11-18

    申请号:EP09159116.4

    申请日:2009-04-29

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6058 H04N1/60

    摘要: The spatial frequency analysis contained in the compressed image is used not only for decompression of images but also for the selection of an appropriate gamut mapping algorithm. Computation resources are then saved because no specific spatial frequency analysis is required for the selection of an appropriate gamut mapping algorithm.

    摘要翻译: 包含在压缩图像中的空间频率分析不仅用于图像的解压缩,而且用于选择适当的色域映射算法。 因此,不需要特定的空间频率分析来选择适当的色域映射算法,因此节省了计算资源。

    METHOD, APPARATUS AND SYSTEM FOR PROVIDING COLOR GRADING FOR DISPLAYS
    40.
    发明公开
    METHOD, APPARATUS AND SYSTEM FOR PROVIDING COLOR GRADING FOR DISPLAYS 审中-公开
    VERFAHREN,VORRICHTUNG UND SYSTEM ZUR BEREITSTELLUNG EINER FARBGRADUIERUNGFÜRANZEIGEN

    公开(公告)号:EP2095624A1

    公开(公告)日:2009-09-02

    申请号:EP06851165.8

    申请日:2006-12-21

    申请人: Thomson Licensing

    IPC分类号: H04N1/60 H04N9/67

    摘要: A method, apparatus and system for providing color grading or color correction for displays includes a plurality of virtual device models where each virtual device model has a virtual model specification (VMS) which controls a display feature. Each display includes a display specification including a display requirement or requirements. An apparatus of the present invention is configured to compare the display feature of at least one VMS against the display requirement of the display specification to determine a best match therebetween to select a virtual device model to control a display picture. Color correction is further provided in post production using the VMS to provide consistency across multiple display types.

    摘要翻译: 用于为显示器提供颜色分级或颜色校正的方法,装置和系统包括多个虚拟设备模型,其中每个虚拟设备模型具有控制显示特征的虚拟模型规范(VMS)。 每个显示器包括包括显示要求或要求的显示规格。 本发明的装置被配置为将至少一个VMS的显示特征与显示规范的显示要求进行比较,以确定其间的最佳匹配,以选择虚拟设备模型来控制显示图像。 在使用VMS的后期制作中进一步提供颜色校正,以提供多种显示类型的一致性。