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머신비젼을 이용한 SMD VR의 중심위치와 홈방향 정밀계측
장경영,김병엽,한창수,박종현,감도영,Jhang, Kyung-Young,Kim, Byung-Yup,Han, Chang-Su,Park, Jong-Hyun,Gam, Do-Young 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.8
The automation of final inspection and tuning process in the manufacturing of electric products is hot issue now, because it is the only part that has not been wholey automized yet, mainly due to the difficulties to handle so small size of VR which is the final tuning point in the most of electric products. For the automation of this process, at first the accurate measurement of position and orientation of SMD VR on PCB in real time is strongly needed. In this paper, a new image processing algorithm to detect the center position and orientation of target VR by using machine vision is proposed for automatic final tuning of the 8mm camcoder's performance. In the method, the outline feature of object is used actively. The usefulness of the proposed methods were tested by several experiments, and the results showed enough accuracy for both of position and orientation. Additatively, we discussed about the total visual system construction and preprocessing of image.
정순홍 ( Snons Cheong ),김영준 ( Young Jun Kim ),김병엽 ( Byung Yup Kim ),구남형 ( Nam Hyung Koo ),이호영 ( Ho Young Lee ) 한국지구물리·물리탐사학회 2013 지구물리와 물리탐사 Vol.16 No.3
The amplitude variation with offset of seismic data can detect fluids in the sediment and resolve the petro-physical properties of hydrocarbons in the subsurface. We analyzed and described the amplitude variation in deep sea seismic data obtained from the Ulleung Basin, East Sea. By inspecting seismic CDP-offset and CDP-angle gathers which show a bright reflection event, we decided a target zone for amplitude variation analysis. From the seismic angle gather at the middle of Ulleung Basin, we recognized amplitude increase or decrease versus offset on the intercept-gradient curve. Using the product attribute and Poisson`s ratio change attribute computed in terms of intercept with gradient, the top and the base of gas saturated sediments were described. The area of amplitude variation suggestive of the presence of gas saturated sediments is shown at the depth of 3 s traveltime. Anomalous features of seismic amplitude in the Ulleung Basin were classified by the crossplot of intercept and gradient. The background trend of crossplot between intercept and gradient shows an inverse proportional relation that is common for wet sediments. Anomalous amplitudes of Class III fall into the first and the third quadrants on crossplots. We inferred regional gas/water saturated area with the horizontal dimension of 150 m in the Ulleung Basin by cross-section with respect to cross-plot anomaly.
손홍범(Hong-bum Son),이창수(Chang-su Lee),전민귀(Min-kui Jeon),김병엽(Byung-yup Kim),박성모(Seong-mo Park) 대한전자공학회 2006 대한전자공학회 학술대회 Vol.2006 No.11
In this paper, we describe interface program for the potable logic-analysis and signal-generation system. Implemented system is driven by 80c196kc MCU. It uses USB interface for data transfer. User interface program is developed based on Microsoft WINAPI32. To control system efficiently, we design USB packet on BULK mode, such as control packet, data packet and request packet. This user interface program makes reusing of test vector possible and makes operation of the system more easy.