METHOD AND A HAND-HELD DEVICE FOR IDENTIFYING OBJECTS IN A SEQUENCE OF DIGITAL IMAGES BY CREATING BINARIZED IMAGES BASED ON A ADAPTIVE THRESHOLD VALUE,申请号WO2002SE02104-传众专利搜索

METHOD AND A HAND-HELD DEVICE FOR IDENTIFYING OBJECTS IN A SEQUENCE OF DIGITAL IMAGES BY CREATING BINARIZED IMAGES BASED ON A ADAPTIVE THRESHOLD VALUE

申请公布号：WO03044740(A1)

申请号：WO2002SE02104

申请日期：2002.11.20

申请公布日期：2003.05.30

申请人：

ANOTO AB;OLSSON, ANDREAS

发明人：OLSSON, ANDREAS

分类号：G06K9/22;G06K9/38;G06T5/00;(IPC1-7):G06T7/00;G06K9/00

主分类号：G06K9/22

摘要：<p>In a method for identifying objects in a digital image which is included in a sequence of images, luminance values of a current digital image are compared with at least one threshold value in order to create a current binarized image on the basis of the comparison. A quality measure for the current binarized image is also calculated, whereupon said at least one threshold value is updated on the basis of the quality measure for use in binarization of a subsequent image. The method can be realized in the form of a computer program, a computer program product, a device, and a hand -held apparatus for position determination.</p>