公开(公告)号：WO2006083944A1

公开(公告)日：2006-08-10

申请号：PCT/US2006/003512

申请日：2006-02-01

Applicant: INTERGRAPH SOFTWARE TECHNOLOGIES COMPANY ,  WHITAKER, Shelia G.

Inventor： WHITAKER, Shelia G.

IPC: G06K7/10 ,  G01J4/04

CPC classification number: G01J4/04 ,  G01N21/21 ,  G06K7/10712 ,  G06K2009/3225 ,  G06T7/11 ,  G06T7/136 ,  G06T2207/30204

Abstract: The present invention relates to a system and method of detecting polarized identification indicia in real-time. A frame of image data is provided (110) having a plurality of pixels, wherein each pixel includes polarized light intensity information. An intensity value is determined for each of the pixels from the polarized light intensity information (120). A first portion of the pixels having intensity values within an intensity range is selected (130, 140). The pixels in the first portion having similar angle of linear polarization values within a tolerance range are analyzed (180), thereby detecting the polarized identification indicia in the image data (190).

Abstract translation: 本发明涉及实时检测偏振识别标记的系统和方法。 提供具有多个像素的图像数据帧（110），其中每个像素包括偏振光强度信息。 从偏振光强度信息（120）中确定每个像素的强度值。 选择具有强度范围内的强度值的像素的第一部分（130,140）。 分析第一部分中具有相似角度的线偏振值在公差范围内的像素（180），从而检测图像数据（190）中的偏振识别标记。