Title:
地図処理装置、ナビゲーション装置及び地図表示方法
Document Type and Number:
Japanese Patent JP4613075
Kind Code:
B2
Abstract:
The invention relates to a map processor and a car navigation device, wherein a map processor comprises a storage unit (112) to record map data; and a control unit (111) wherein the control unit (111) reads map data of an area to be displayed from the storage unit (112) and divides the map data into a plurality of regions. In each of divided regions of the map, a redundancy of the region is estimated from the characteristics quantity such as fractal dimension of line segments of road. Then, regions with the same redundancies are combined to form a larger area so that the map is divided according to the redundancy. The areas thus formed are summarized by the summarization methods conforming to their redundancies and are combined into one map. In the map thus generated, only necessary information can be presented, with redundant information eliminated.
Inventors:
Akihara Akinori
Masaaki Tanizaki
Takashiko Maruyama
Shigeru Shimada
Sumizawa Shouo
Masaaki Tanizaki
Takashiko Maruyama
Shigeru Shimada
Sumizawa Shouo
Application Number:
JP2005038563A
Publication Date:
January 12, 2011
Filing Date:
February 16, 2005
Export Citation:
Assignee:
Clarion Co., Ltd.
International Classes:
G06T11/60; G06T17/05; G09B29/00; G09B29/10
Domestic Patent References:
| JP2002206933A | ||||
| JP11237833A | ||||
| JP10177338A |
Attorney, Agent or Firm:
Manabu Inoue