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    • 4. 发明申请
    • COMPARISON METHOD AND APPARATUS
    • 比较方法和装置
    • WO02086430A2
    • 2002-10-31
    • PCT/GB0201888
    • 2002-04-24
    • MAY RICHARD
    • MAY RICHARD
    • G01J3/46G01J3/00
    • G01J3/46G01J3/463G01J3/524G01J2003/466
    • A method of colour comparison relating to a sample comprising the steps of scanning the sample to establish components of light broken down into a predetermined number of points (each point relating to the colour of light reflected from the sample) across a colour spectrum extending over the light range from infra-red to ultra-violet; storing the value of each point obtained from the scanning step as a set of first values ('Spectral Data') in a first data store; Spectral Data effectively giving a two dimensional view of the colour at each point; deriving from the Spectral Data a second set of values ('LAB Data') in a second data store; LAB Data effectively giving a position of the colour at a point within a three dimensional colour space; comparing the LAB Data of a particular point with a selected standard; establishing coincidence, or of any difference, between the LAB Data and the selected standard; establishing a working value for the sample based on coincidence pr of any differences up to a predetermined value established during the comparison step for the majority, if not all, of the predetermined number of points; making use of an algorithm depending on the sample of furnishing material involved (that is to say a given algorithm for carpets; a further algorithm for paint, yet another algorithm for wall paper, and so on); comparing the working value with comparable colour data for another furnishing material product of a different type to that of the sample in order to identify a particular product having a predetermined working colour relationship with the sample.
    • 一种与样本相关的颜色比较的方法,包括以下步骤:扫描样本以建立分解成预定数量的点的分量(与样品反射的光的颜色相关的每个点)跨越在 光线范围从红外到紫外线; 将从扫描步骤获得的每个点的值存储在第一数据存储器中作为第一值(“谱数据”)的集合; 光谱数据有效地给出了每个点的颜色的二维视图; 在第二数据存储器中从光谱数据导出第二组值(“LAB数据”); LAB数据有效地在三维颜色空间内的一个点处给出颜色的位置; 将特定点的LAB数据与所选标准进行比较; 建立LAB数据和所选标准之间的巧合或任何差异; 基于对于大多数(如果不是全部)预定数量的点的比较步骤中建立的任何差异的任何差异的一致性pr来建立样本的工作值; 根据所涉及的装饰材料的样本(也就是说,给定的地毯算法;另一种绘画算法,另一种墙纸算法等)利用算法; 将不同类型的另一家具材料产品的工作值与可比较的颜色数据进行比较,以便识别与样品具有预定工作色彩关系的特定产品。