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이재도,박준호,전대성,윤영우,김상곤,Lee, Jae-Do,Park, Jun-Ho,Jeon, Dae-Seong,Yun, Yeong-U,Kim, Sang-Gon 한국정보처리학회 2000 정보처리논문지 Vol.7 No.5
For the object-based video compression at very low bit rate, vieo segmentation is an essential part. In this paper, we propose a temporal video segmentation algorithms for motion pictures which is based on blocks. The algorithm is composed of three steps: (1) the change-detection, (2) the block merging, and (3) the block segmentation. The first step separates the change-detected region from background. Here, a new method for removing the uncovered region without motion estimation is presented. The second step, which is further divided into three substeps, estimates motions for the change-detected region and merges blocks with similar motions. The merging conditions for each substep as criteria are also given. The final step, the block segmentation, segments the boundary block that is excluded from the second step on a pixel basis. After describing our algorithm in detail, several experimental results along the processing order are shown step by step. The results demonstrate that the proposed algorithm removes the uncovered region effectively and produced objects that are segmented well.
Influence of Hydrofluoric Acid on Soil Microorganisms and Physicochemical Properties of Soils
Lee, Youn Koung(이연경),Dong Sung Lee(이동성),Kyo Suk Lee(이교석),Dae Sung Jeon(전대성),Mi suk Park(박미숙),Ji Su Shin(신지수),Ji Won Goo(구지원),Soo Bin Kim(김수빈),Na Won Park(박나원),Ye Jin Park(박예진),So Jin Kim(김소정),Bo Koung 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.10
Effects of Excess Copper on Germination and Growth of Maize Plants
Shin, Ji Su(신지수),Kyo Sung Lee(이교석),Dong Sung Lee(이동성),Dae Sung Jeon(전대성),Youn K Lee(이연경),Misuk Park(박미숙),Ji W. Goo(구지원),Soo B. Kim(김수빈),Na Won Park(박나원),Ye Jin Park(박예진),So Jeong Kim(김소정),Bo Koung Lee 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.10
심호영 ( Ho Young Shim ),이교석 ( Kyo Suk Lee ),이동성 ( Dong Sung Lee ),전대성 ( Dae Sung Jeon ),박미숙 ( Mi Suk Park ),신지수 ( Ji Su Shin ),이연경 ( Yun Koung Lee ),구지원 ( Ji Won Goo ),김수빈 ( Soo Bin Kim ),송승근 ( Seong Ge 한국환경농학회 2014 한국환경농학회지 Vol.33 No.3
BACKGROUND: Increase in application of liquid pigmanure(LPM) in agriculture as nutritional source hasbecome a social issue due to its influence on water quality. Also, proper application methods have not been developedwith respect to indigenous properties of LPM and soilphysical properties. Therefore, we conducted thisexperiment to observe the infiltration characteristics anddistribution of dissolved organic compounds of LPM insoils having different soil textures. METHODS AND RESULTS: To do this experiment, wecollected three different soils and LPM. We analyzed thephysical and chemical properties of both soils and LPM todetermine the dilution ratios of LPM. The LPM diluted to 4different ratios with distilled water was applied to the top ofsoil column. Infiltration rates were observed by time anddepth until the amount of effluent collected from the bottomof the soil columns were stabilized while maintaining thehydraulic head 3 cm above the soil column. The resultsshowed that infiltration rates increased with increasingdilution ratios in the order of sandy, loamy sand, and sandyloam> The time required to reach steady state was increasedwith decreasing sand contents clay. CONCLUSION: The size and amount of the dissolvedorganic compounds in LPM that can determine theefficiency as fertilizer and environmental problems asnonpoint pollution source in water quality have not beeninvestigated with respect to behavior and transport of themin soil. Therefore, it requires further research how we canproperly apply LPM as valuable fertilizer substitute forinorganic fertilizers.