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Hanseok Ko

Korea University

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Publication

Featured researches published by Hanseok Ko.

IEICE Transactions on Communications | 2007

Effective Energy Feature Compensation Using Modified Log-energy Dynamic Range Normalization for Robust Speech Recognition

Yoonjae Lee; Hanseok Ko

This paper proposes effective energy feature normalization methods for robust speech recognition in noisy environments. We first develop an energy subtraction method and a modified method for the Log-energy Dynamic Range Normalization (ERN) using inverse function. We then present the hybrid method combining the energy subtraction and the modified ERN. Using Aurora2.0 database for representative evaluations, a significant performance improvement over the ERN method is demonstrated.

IEICE Transactions on Information and Systems | 2001

Noise Variance Estimation for Kalman Filtering of Noisy Speech

Wooil Kim; Hanseok Ko

IEICE Transactions on Information and Systems | 2013

Fast Single Image De-Hazing Using Characteristics of RGB Channel of Foggy Image

Dubok Park; David K. Han; Changwon Jeon; Hanseok Ko

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences | 2012

Full Azimuth Multiple Sound Source Localization with 3-Channel Microphone Array

Suwon Shon; David K. Han; Jounghoon Beh; Hanseok Ko

IEICE Transactions on Information and Systems | 2015

Visual Speech Recognition Using Weighted Dynamic Time Warping

Kyungsun Lee; Minseok Keum; David K. Han; Hanseok Ko

IEICE Transactions on Information and Systems | 2003

Effective Multi-Vehicle Tracking in Nighttime Condition Using Imaging Sensors

Hanseok Ko; Ilkwang Lee; Jihyo Lee; David K. Han

IEICE Transactions on Information and Systems | 2016

Key Frame Extraction Based on Chaos Theory and Color Information for Video Summarization

Jaeyong Ju; Taeyup Song; Bonhwa Ku; Hanseok Ko

IEICE Transactions on Information and Systems | 2014

Pre-Filtering Algorithm for Dual-Microphone Generalized Sidelobe Canceller Using General Transfer Function

Jinsoo Park; Woo-Il Kim; David K. Han; Hanseok Ko

IEICE Transactions on Information and Systems | 2009

Robust Relative Transfer Function Estimation for Dual Microphone-Based Generalized Sidelobe Canceller

Kihyeon Kim; Hanseok Ko

IEICE Transactions on Information and Systems | 2017

License Plate Detection and Character Segmentation Using Adaptive Binarization Based on Superpixels under Illumination Change

Daehun Kim; Bonhwa Ku; David K. Han; Hanseok Ko

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David K. Han

Office of Naval Research

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Bonhwa Ku

Korea University

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Kihyeon Kim

Korea University

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Yoonjae Lee

Korea University

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Dubok Park

Korea University

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Jaeyong Ju

Korea University

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Minkyu Shin

Korea University

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Seongkyu Mun

Korea University

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Suwon Shon

Korea University

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Woo-Il Kim

Incheon National University

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