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플렉서블 디스플레이 적용을 위한 저온 실리콘 질화막의 N<sub>2</sub> 플라즈마 처리 영향
김성종,김문근,권광호,김종관,Kim, Seongjong,Kim, Moonkeun,Kwon, Kwang-Ho,Kim, Jong-Kwan 한국전기전자재료학회 2014 전기전자재료학회논문지 Vol.27 No.1
Silicon nitride thin film deposited with Plasma Enhanced Chemical Vapor Deposition was treated by a nitrogen plasma generated by Inductively Coupled Plasma at room temperature. The treatment was investigated by Fourier Transform Infrared Spectroscopy and Atomic Force Microscopy on the surface at various RF source powers at two RF bias powers. The amount of hydrogen was reduced and the surface roughness of the films was decreased remarkably after the plasma treatment. In order to understand the causes, we analyzed the plasma diagnostics by Optical Emission Spectroscopy and Double Langmuir Probe. Based on these analysis results, we show that the nitrogen plasma treatment was effective in the improving of the properties silicon nitride thin film for flexible display.
궤적 예측 및 이미지 유사도 측정에 기반한 다중 카메라 객체 추적 방법
김성종(Seongjong Kim),이하은(Haeun Lee),송석일(Seokil Song) 한국정보기술학회 2023 한국정보기술학회논문지 Vol.21 No.5
This paper proposes a method for re-identifying objects continuously tracked in multi-camera network. In a multi-camera network, each camera has different viewpoints, heights, and lighting conditions, and the distance between the regions detected by adjacent cameras is also different depending on their installation. The proposed method combines re-identification based on the objects location prediction and re-identification based on the visual features of objects. It enhances accuracy by adjusting the weights of location-based re-identification and visual feature-based re-identification methods according to the installation conditions. The proposed method is implemented and evaluated using data collected from multi-cameras installed on real roads to show its effectiveness.
HLS를 이용한 텔레메트리 표준 106-17 LDPC 복호기 설계
구영모(Young Mo Gu),김성종(Seongjong Kim),김복기(Bokki Kim) 한국항공우주학회 2021 韓國航空宇宙學會誌 Vol.49 No.4
통신 시스템 FPGA 개발 시 HLS를 이용하면 성능 검증용 C/C++ 소스 코드를 일부 수정하여 자동으로 HDL 코드를 생성할 수 있으므로 개발 기간을 단축할 수 있는 장점이 있다. 본 논문에서는 텔레메트리 표준 106-17 LDPC 복호기를 Xilinx사의 Vivado HLS를 이용하여 C언어로 설계하는 방법을 제시하였고, Spartan-7와 Kintex-7 디바이스를 타겟으로 합성하여 throughput과 FPGA 이용률을 비교하였다. By using HLS when developing a communication system FPGA, HDL code can be automatically generated from a little modified C/C++ source code used for performance verification, which has the advantage of shortening the development period. In this paper, a method of designing a telemetry standard 106-17 LDPC decoder in C language is proposed using Xilinx’s Vivado HLS, and by synthesizing Spartan-7 and Kintex-7 as target devices, throughput and FPGA utilization rate was compared.