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Regression via classification for fingerprint orientation estimation

IEEE Access
Estimating the direction in which the ridges and valleys of the fingerprint pattern are aligned often serves as a pivotal first step in fingerprint recognition systems. The ridge orientation map is a fundamental reference for subsequent processing stages, such as image enhancement, feature extraction, and matching.
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Increasing of the spatial orientation estimation accuracy of the aircraft in the interests of radar profiles adaptation to the observation conditions

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The article is devoted to the increasing of the spatial orientation angles estimation accuracy of the aircraft with reference to radar systems. The structural device scheme of the spatial orientation angles estimation of the radar observation object was ...
S. N. Yarmolik, M. V. Svinarskiy, A. S. Khramenkov, E. V. Zaiko   +3 more
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Do State Fiscal Policies Affect State Economic Growth? [PDF]

What factors influence state economic growth? This paper uses annual state (and local) data for the years 1947 to 1997 for the 48 contiguous states to estimate the effects of a large number of factors, including taxation and expenditure policies, on ...
James Alm, Janet Rogers
core  

DC-DOES: A Dual-Camera Deep Learning Approach for Robust Orientation Estimation in Maritime Environments

IEEE Access
Attitude and Heading Reference Systems (AHRS) have achieved significant accuracy and reliability, making them suitable for various applications. This is possible through the integration of high-rate measurements, though they remain prone to errors ...
Fabiana Di Ciaccio, Salvatore Troisi, Paolo Russo   +2 more
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RELIABLE ORIENTATION FIELD ESTIMATION OF FINGERPRINT BASED ON ADAPTIVE NEIGHBORHOOD ANALYSIS

ICTACT Journal on Image and Video Processing, 2017
Fingerprint Orientation estimation is an important step in feature extraction and classification. However, a reliable extraction of fingerprint orientation data is still a challenge for poor quality images.
Shoba Dyre, C P Sumathi
doaj  

Symmetry-Robust 3D Orientation Estimation

ICML ...
Scarvelis, Christopher, Benhaim, David, Zhang, Paul   +2 more
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Magnetic Distortion Resistant Orientation Estimation

14pages
Yang, Sikai, Liu, Miaomiao, Du, Wan
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Using Lognormal_PCA for Orientation Estimation

OALib, 2022
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System modeling oriented time-delay estimation

ISA Transactions, 2020
Training models to approximate target systems is the dominant method applied to unknown-structure delay system modeling. Due to limited learning ability of the models, the time-delay estimation (TDE) process should be executed prior to the training. The TDE for unknown-structure multi-input multi-output (MIMO) delay systems remains a challenge due to ...
Xuguang, Wang, Jifeng, Zuo, Lifeng, Zhang, Jie, Su   +3 more
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Scale-adaptive orientation estimation

Object recognition supported by user interaction for service robots, 2003
This paper focuses on directional textures. It provides a new framework for the design of convolution masks dedicated to orientation estimation and an adaptive algorithm which chooses the best mask size for each pixel. The design of the adaptive algorithm is based on the combination of two complementary operators: a gradient based operator which is ...
F. Le Pouliquen, C. Germain, P. Baylou
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