Title:
TRAINING APPARATUS, ANGLE ESTIMATION APPARATUS, TRAINING METHOD, AND ANGLE ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/148850
Kind Code:
A1
Abstract:
The training apparatus includes an angle difference computation section which calculates a difference between angles estimated by one or more angle estimators, a rigid transformation section which transforms the feature of the input image according to the difference, a matching loss computation section which calculates a matching loss between a non-transformed feature extracted by the one or more feature extractors and the feature transformed by the rigid transformation section, and an updating section which updates at least the one or more angle estimators with reference to the matching loss, wherein the rigid transformation section transforms the feature in a way that the feature appears as if it has been extracted from an image at the same angle of the image from which the non-transformed feature value has been extracted.
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Inventors:
TAI TSENJUNG (JP)
TODA MASATO (JP)
TODA MASATO (JP)
Application Number:
PCT/JP2022/004092
Publication Date:
August 10, 2023
Filing Date:
February 02, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S13/90; G01B11/26; G06T7/00
Foreign References:
| JP2006277682A | 2006-10-12 | |||
| US5060276A | 1991-10-22 | |||
| JPH09128550A | 1997-05-16 |
Other References:
ROWLEY H. A., BALUJA S., KANADE T.: "ROTATION INVARIANT NEURAL NETWORK-BASED FACE DETECTION.", PROCEEDINGS OF THE 1998 IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION. CVPR '98. SANTA BARBARA, CA, JUNE 23 - 25, 1998., LOS ALAMITOS, CA : IEEE COMPUTER SOC., US, vol. CONF. 17, 23 June 1998 (1998-06-23), US , pages 38 - 44., XP000871502, ISBN: 978-0-7803-5063-2, DOI: 10.1109/CVPR.1998.698585
Attorney, Agent or Firm:
IWAKABE Fuyuki et al. (JP)
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