Title:
CURVED SURFACE FITTING PROCESSING METHOD, FITTING PROCESSING DEVICE, FITTING PROCESSING PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM IN WHICH FITTING PROCESSING PROGRAM IS STORED
Document Type and Number:
WIPO Patent Application WO/2021/044891
Kind Code:
A1
Abstract:
A curved surface fitting processing method provided with: a step for setting, on a curved surface model (S), nearest neighbor points (H) that correspond to measurement points (Q); a step for executing a least square method so that the sum of squares of the distance between the nearest neighbor points (H) and the measurement points (Q) reaches a minimum, and thereby determining the movement amount (ΔRijk) of each control point (Rijk); and a step for executing free-form deformation (FFD) on the basis of the movement amount (ΔRijk), and thereby fitting the curved surface model (S) to the measurement points (Q).
Inventors:
OKADA MATAHARU (JP)
MIURA KENJIRO (JP)
NAKAMURA YUTO (JP)
MIURA KENJIRO (JP)
NAKAMURA YUTO (JP)
Application Number:
PCT/JP2020/031894
Publication Date:
March 11, 2021
Filing Date:
August 24, 2020
Export Citation:
Assignee:
MAZDA MOTOR (JP)
UNIV SHIZUOKA NAT UNIV CORP (JP)
UNIV SHIZUOKA NAT UNIV CORP (JP)
International Classes:
G06T19/00; G06F30/10
Domestic Patent References:
| WO2009142037A1 | 2009-11-26 |
Foreign References:
| JP2004078309A | 2004-03-11 |
Other References:
YAHARA HIROKI, HIGUMA NAOKI, FUKUI YUKIO, NISHIHARA SEIICHI, MOCHIMARU MASAAKI, KOUCHI MAKIKO: "Estimation of anatomical landmark positions from model of 3-dimensional foot by the FFD method", SYSTEMS & COMPUTERS IN JAPAN, vol. 36, no. 6, 15 June 2005 (2005-06-15), US , pages 26 - 38, XP055897954, ISSN: 0882-1666, DOI: 10.1002/scj.20270
See also references of EP 4027303A4
See also references of EP 4027303A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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