Title:
METHOD AND DEVICE FOR CORRECTING RANGE DATA EXTRACTION REGION, AND RECORDING MEDIUM RECORDING EXECUTION PROGRAM OF THE METHOD
Document Type and Number:
Japanese Patent JP3712357
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method ad a device for correcting an extraction region of distance measuring information extracted from range data in order to provide a two-dimensional map graphic form with height information with high accuracy.
SOLUTION: A processing object region and a processing object graphic form are first received from an operator. The height difference from a point adjacent to an object point is then computed from height information obtained from the range data, and a feature quantity of a height difference pattern satisfying a certain fixed condition is computed to correct the extraction region of range data using the feature quantity. To correct the extraction region, the processing object graphic form and the computed feature quantity are used to compute the candidate of the moving quantity on how much the extraction region of range data should be deformed, and the moving quantity is determined from the computed candidate of the moving quantity to correct the extraction region. The height information of the processing object graphic form is computed from the corrected extraction region of range data, and the computed result is stored in a three-dimensional map database.
Inventors:
Kensaku Fujii
Yuji Ishikawa
Kenichi Ichikawa
Tomohiko Arikawa
Yuji Ishikawa
Kenichi Ichikawa
Tomohiko Arikawa
Application Number:
JP2000348022A
Publication Date:
November 02, 2005
Filing Date:
November 15, 2000
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G09B29/00; G06T1/00; G06T7/60; (IPC1-7): G06T17/50; G06T1/00; G06T7/60; G09B29/00
Domestic Patent References:
| JP5181411A | ||||
| JP2000209431A | ||||
| JP9101742A |
Other References:
神谷泉、長谷川裕之,ヘリレーザースキャナと建物平面形データによる3次元モデルの作成,日本リモートセンシング学会第26回(平成11年度春期)学術講演会論文集,日本,(社)日本リモートセンシング学会,1999年 5月19日,VOL26,P459-P462
Attorney, Agent or Firm:
Tsuyoshi Hashimoto