A Scheme of Template Selection and Updating for Palmprint Authentication Systems

2017 ◽  
pp. 250-258 ◽  
Author(s):  
Xi Chen ◽  
Ming Yu ◽  
Feng Yue ◽  
Bin Li
Keyword(s):  
Template Selection

scholarly journals CIRCULARITY: A Metric for Region Template Selection in Airborne Vision Navigation

2019 ◽  
Vol 1325 ◽  
pp. 012083
Author(s):  
Haiyang Hua ◽  
Zelin Shi ◽  
Yunpeng Liu
Keyword(s):  
Vision Navigation ◽  
Template Selection

scholarly journals Optimized Periocular Template Selection for Human Recognition

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Sambit Bakshi ◽  
Pankaj K. Sa ◽  
Banshidhar Majhi
Keyword(s):  
Feature Extraction ◽  
Biometric System ◽  
Human Recognition ◽  
Novel Approach ◽  
Database Size ◽  
Periocular Region ◽  
Template Selection ◽  
Selection For ◽  
Computationally Intensive

A novel approach for selecting a rectangular template around periocular region optimally potential for human recognition is proposed. A comparatively larger template of periocular image than the optimal one can be slightly more potent for recognition, but the larger template heavily slows down the biometric system by making feature extraction computationally intensive and increasing the database size. A smaller template, on the contrary, cannot yield desirable recognition though the smaller template performs faster due to low computation for feature extraction. These two contradictory objectives (namely, (a) to minimize the size of periocular template and (b) to maximize the recognition through the template) are aimed to be optimized through the proposed research. This paper proposes four different approaches for dynamic optimal template selection from periocular region. The proposed methods are tested on publicly available unconstrained UBIRISv2 and FERET databases and satisfactory results have been achieved. Thus obtained template can be used for recognition of individuals in an organization and can be generalized to recognize every citizen of a nation.

scholarly journals Best individual template selection from deformation tensor minimization

2008 ◽  
Author(s):  
Natasha Lepore ◽  
Caroline Brun ◽  
Yi-Yu Chou ◽  
Agatha D. Lee ◽  
Marina Barysheva ◽  
...  
Keyword(s):  
Deformation Tensor ◽  
Template Selection

Research of Image Registration Based on Maximum Entropy Template Selection Algorithm

2011 ◽  
Vol 268-270 ◽  
pp. 1138-1143
Author(s):  
Hong Ying Qin
Keyword(s):  
Genetic Algorithm ◽  
Image Registration ◽  
Maximum Entropy ◽  
Evolutionary Process ◽  
Adaptive Genetic Algorithm ◽  
Image Stitching ◽  
Local Optimum ◽  
Selection Algorithm ◽  
Template Selection ◽  
Crossover And Mutation

This paper concerns an improved adaptive genetic algorithm, and the method is applied to the Maximum Entropy Template Selection Algorithm image registration. This method includes adjusting the probability of crossover and mutation in the evolutionary process. The method can overcome the disadvantage of traditional genetic algorithm that is easy to get into a local optimum answer. Results show our method is insensitive to the ordering, rotation and scale of the input images so it can be used in image stitching and retrieval of images & videos.

A sonar ring with continuous matched filtering and dynamically switched templates

Robotica ◽  
2011 ◽  
Vol 30 (6) ◽  
pp. 891-912 ◽  
Author(s):  
Damien C. Browne ◽  
Lindsay Kleeman
Keyword(s):  
Field Programmable Gate Array ◽  
Pulse Shape ◽  
Arrival Time ◽  
Matched Filter ◽  
Sine Wave ◽  
Matched Filtering ◽  
Low Latency ◽  
Field Programmable ◽  
Sonar Sensor ◽  
Template Selection

SUMMARYMatched filtering optimally estimates the arrival time for a sonar sensor by correlating received signals with templates. This paper presents a sonar ring with continuous matched filtering on 48 receiver channels sampled at 500kHz. The design dynamically switches the matched filter templates to account for pulse shape variations with range. To achieve real-time, low-latency and optimal performance, processing is implemented on an field-programmable gate array (FPGA) transmitting sonar pulses (2 periods of a 45kHz sine wave) at repetition rate of 30-Hz to 5.7-m range. The paper describes the removal of secondary peaks of the correlation output of matched filtering and template selection. Results include sonar maps, accuracy measurements and localization of weak targets.

Fast Block Matching Algorithm for Ray Space Data Compression

2013 ◽  
Vol 380-384 ◽  
pp. 1477-1481
Author(s):  
Zhi Peng Jin ◽  
Yu Yan Fang ◽  
Mei Yu
Keyword(s):  
Data Compression ◽  
High Performance ◽  
Texture Classification ◽  
Low Complexity ◽  
Block Matching ◽  
Matching Algorithm ◽  
Block Matching Algorithm ◽  
Texture Characteristics ◽  
Template Selection ◽  
Space Data

in order to improve the efficiency of ray-space data compression, according to the texture characteristics of ray space data, introducing a simple effective method of texture classification, a new fast block matching algorithm based on adaptive template selection is proposed in this paper, for prediction coding of ray space slice sequence. Experimental results show that the proposed algorithm has low-complexity and high-performance characteristics, for different types of ray space slice sequences with strong adaptability.

scholarly journals Use of IBASPM atlas-based automatic segmentation toolbox in pathological brains: Effect of template selection

2008 ◽  
Author(s):  
Veronica Garcia-Vazquez ◽  
Santiago Reig ◽  
Joost Janssen ◽  
Javier Pascau ◽  
Alexia Rodriguez-Ruano ◽  
...  
Keyword(s):  
Automatic Segmentation ◽  
Template Selection

Systematic Molecular Control of Interfacial Structure in Nanoporous Carbons

2003 ◽  
Vol 788 ◽  
Author(s):  
Kengqing Jian ◽  
Gregory P. Crawford ◽  
Robert H. Hurt
Keyword(s):  
Molecular Orientation ◽  
Liquid Crystalline ◽  
Substrate Material ◽  
Interfacial Structure ◽  
Mesoporous Carbons ◽  
Nanoporous Carbons ◽  
Molecular Control ◽  
Flat Substrate ◽  
Internal Surfaces ◽  
Template Selection

ABSTRACTThe present paper describes a new concept of synthesizing nanoporous carbons that allows control not only of the pore structure, but also of the molecular structure of the internal surfaces. Interfacial molecular control is achieved through the use of discotic liquid crystalline precursors whose molecular orientation on the substrate material is known or can be determined by simple measurements on flat substrate test samples. Here a suite of nanoporous (mesoporous) carbons are synthesized from various porous glass and silica gel templates, and a model is developed to predict the carbon properties from template properties thus allowing systematic template selection.

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