发明名称 NAVIGATION DEVICE&METHOD
摘要 <p>Embodiments of the present invention provide a method of determining a location at which a lane divider marking changes type, comprising determining (350) a first type of lane divider (120) marking based upon a frequency spectrum determined by Fourier analysis of first image data (431) corresponding to a first area, determining (350) a second type of lane divider (130) marking based upon a frequency spectrum determined by Fourier analysis of second image data (432) corresponding to a second area, and determining (360) a geographic location at which the lane divider marking changes type according to a comparison of the first and second types (120, 130) of lane divider marking.</p>
申请公布号 EP2427728(A1) 申请公布日期 2012.03.14
申请号 EP20090844468 申请日期 2009.12.31
申请人 TOMTOM NORTH AMERICA INC. 发明人 VAN DE VELDE, TOM
分类号 G01C21/32;G08G1/01;G08G1/052;G08G1/0968 主分类号 G01C21/32
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