CONTENTS Vol. 15, No. 2 Feb Big Data/Cloud Computing A Study on the Direction of Light Using Intensity Distribution in Single Image Je-Jin Ryu,

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1 한국차 례 제 15 권제 2 호 2017 년 2 월 Big Data/Cloud Computing, - --, ReLU ELM, Embedded System/Robotics SFM DC-DC Fail-Safe, Future Network/Mobile Communication 3 ADC Signal Processing/IoT IoT Almanac, SUMO VANET A Case Study on the Propagation Interference Effect of the LLZ/GP Facility : Modeling and Basic Materials Research IT Convergence/Platform,,,, KMS,,, Dominant CS-LBP A Comparative Study on TVWS Regulation Policy: the U.S., the U.K., and South Korea, 경북대학교 IP: 155.*** Accessed 2017/03/01 20:49(KST)

2 CONTENTS Vol. 15, No. 2 Feb Big Data/Cloud Computing A Study on the Direction of Light Using Intensity Distribution in Single Image Je-Jin Ryu, Hong-Ki Min Design of Master-Slave-Slave Replication Model to Balance Master Overhead for Key-value Database Kyung-Tae Song, Sang-Hyun Park Image Classification Using Convolutional Neural Network and Extreme Learning Machine Classifier Based on ReLU Function Jung-Soo Han, Keun-Chang Kwak Embedded System/Robotics Design of DC-DC Converter for Light-Load with Variable Output Voltage Using SFM Hak-Yun Kim, Myeong-Hak Lee, Young-Ho Shin, Ho-Yong Choi Implementation of Fail-Safe During Drone's Flight Hyung-Su Kim, Young-Hwan Han Improvement of Luminous Efficiency in AC Plasma Display Panel with Long Distance between Top Plate Electrodes Seung Seob Park, Byung-Gwon Cho A Study on Discharge Delay Time in AC Plasma Display Panel with Linear Gray Scale Byung-Gwon Cho Future Network/Mobile Communication Strategies to Reduce Isolated Node Ratio for Wireless Sensor Networks with Mobile Sink Bongsue Suh Development of the ADC for Mobile Communication Repeater with in 3 Delay Time Jong-Dae Park A Cell-Based Mobility Model for Mobile Ad-hoc Networks Backhyun Kim, Kyeongmo Park Signal Processing/IoT A Secure Almanac Synchronization Method for Open IoT Maritime Cloud Environment Donghyeok Lee, Namje Park Performance Comparison of Routing Protocols in Vehicular Ad Hoc Networks(VANET) Using SUMO Ye-Eun Chae, Seung-Seok Kang A Performance Evaluation of Post-Processing Algorithms for Disparity Refinement of Stereo Vision Jongkil Hyun, Ingyu Lee, Byungin Moon A Case Study on the Propagation Interference Effect of the LLZ/GP Facility : Modeling and Basic Materials Research Kwangsik Cho, Joungil Moon, Yoonsik Kwak, Kyujoung Park IT Convergence/Platform Electromagnetic Transmission Characteristics of Eco-friendly Foamed Concrete Wall Sung-Sil Cho, Jae-Seong Yu, Jin-Man Kim, Ic-Pyo Hong Analysis of the Relationship between the Type of Experience and Blog Texts Hyung Jun Ahn, Youngmok Ha Influence of Organizational Factors and Knowledge Informational Factors of KMS, and Suitability of a Strategy on System Performance Seon-Gyu Yi Phase Mapping Recognition and Modulation Classification Algorithm Using New Higher-order Cumulants Jaeyoon Lee, Seongjin Ahn, Junwon Choi, Dongweon Yoon Face Recognition Based on Dominant CS-LBP Dong-Jin Kwon, Un-Dong Chang A Comparative Study on TVWS Regulation Policy: the U.S., the U.K., and South Korea Maeng-Joo Lee, Boon-Yeon Kim 경북대학교 IP: 155.*** Accessed 2017/03/01 20:49(KST)

3 현종길 *, 이인규 *, 문병인 ** 요약 Abstract Stereo vision is a technique of extracting disparities from a stereo image pair and calculating three-dimensional distance information. Stereo vision is an active research field because it can be used in various applications. Most studies of stereo vision have been focusing on the matching process and paying little attention to the post-processing process which plays a significant role in improving disparity accuracy. Thus, this paper divides the post-processing algorithms into three groups and evaluates and analyzes their performance. According to the experimental results, the left-right consistency check shows the best performance compared with other seed pixel detection methods, the 2-way interpolation method is more efficient than the 1-way interpolation method, and the weight median filter shows outstanding performance to improve disparity accuracy while preserving edge information of disparity maps. Keywords stereo vision, post-processing, disparity refinement, seed pixel, hole filling, filter ) ž Received: Jan. 25, 2017 Revised: Feb. 12, 2017, Accepted: Feb. 15, 2017 ž Corresponding Author: Byungin Moon School of Electronics Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea, Tel.: , bihmoon@knu.ac.kr

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High Resolution Disparity Map Generation Using TOF Depth Camera In this paper, we propose a high-resolution disparity map generation method using a lo

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