• The Korean Journal of Applied Statistics
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• v.23 no.6
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• pp.997-1021
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• 2010

This paper compares the two most widely used seasonal adjustment methods: the X-12-ARIMA and TRAMO-SEATS procedures. The basic features of these methods are discussed and compared in both their theoretical and empirical aspects. In doing so, the X-13A-S program is used to reevaluate their applicability to Korean macroeconomic data by considering possible structural breaks in the series. The finding is that both methods provide very reliable and stable estimates of seasonal factors and seasonally adjusted data. As for the empirical comparisons, TRAMO-SEATS appears to outperform X-12-ARIMA, although the results are somewhat mixed depending on the comparison criteria used and on the series under analysis. In particular, the performance of TRAMO-SEATS turns out to compare more favorably when seasonal adjustment is carried out to each sub-samples (by taking possible structural breaks into account) than when the whole sample period is used. The result suggests that as the model-based TRAMO-SEATS has a considerable theoretical appeal, some features of TRAMO-SEATS should further be incorporated into X-12-ARIMA until a standard and integrated procedure is reached by combining the theoretical coherence of TRAMO-SEATS and the empirical usefulness of X-12-ARIMA.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.37 no.6
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• pp.545-554
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• 2019

This research aims to provide a building area extraction approach over the areas where data acquisition is impossible through field surveying, aerial photography and lidar scanning. Hence, high-resolution satellite images, which have high accessibility over the earth, are utilized for the automated building extraction in this study. 3D point clouds or DSM (Digital Surface Models), derived from the stereo image matching process, provides low quality of building area extraction due to their high level of noises and holes. In this regards, this research proposes a hybrid building area extraction approach which utilizes 3D point clouds (from image matching), and color and linear information (from imagery). First of all, ground and non-ground points are separated from 3D point clouds; then, the initial building hypothesis is extracted from the non-ground points. Secondly, color based building hypothesis is produced by considering the overlapping between the initial building hypothesis and the color segmentation result. Afterwards, line detection and space partitioning results are utilized to acquire the final building areas. The proposed approach shows 98.44% of correctness, 95.05% of completeness, and 1.05m of positional accuracy. Moreover, we see the possibility that the irregular shapes of building areas can be extracted through the proposed approach.

• Journal of Broadcast Engineering
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• v.13 no.2
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• pp.236-244
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• 2008

We propose a new building detection and description algorithm for Lidar data and photogrammetric imagery using color segmentation, line segments matching, perceptual grouping. Our algorithm consists of two steps. In the first step, from the initial building regions extracted from Lidar data and the color segmentation results from the photogrammetric imagery, we extract coarse building boundaries based on the Lidar results with split and merge technique from aerial imagery. In the secondstep, we extract precise building boundaries based on coarse building boundaries and edges from aerial imagery using line segments matching and perceptual grouping. The contribution of this algorithm is that color information in photogrammetric imagery is used to complement collapsed building boundaries obtained by Lidar. Moreover, linearity of the edges and construction of closed roof form are used to reflect the characteristic of man-made object. Experimental results on multisensor data demonstrate that the proposed algorithm produces more accurate and reliable results than Lidar sensor.

• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.6
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• pp.155-184
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• 2002

Die dritte Konstruktion zeichnet sich dadurch aus, dass Elemente, die vom zu-Infinitiv im 'Nachfeld' $abh\"{a}ngen$, links vom Matrixverb auftreten. Die dritte Konstruktion weist sowohl Eigenschaften auf, die sie als $inkoh\"{a}rent$ ausweist, als auch Eigenschaften, die als syntaktische Reflexe von $Koh\"{a}renzbildung$ bezeichnet werden $k\"{o}nnen$. Das $vollst\"{a}ndig$ extraponierte zu-Infinitivkomplement ist immer satzwertig $(inkoh\"{a}rent),\;w\"{a}hrend$ der intraponierte zu-Infinitiv sowohl nicht-satzwertig $(koh\"{a}rent)$, als auch satzwertig $(inkoh\"{a}rent)$ sein kann. In der vorliegenden Arbeit wird eine constraint-basierte Analyse zur Synatx der dritten Konstruktion im Deutschen dargestellt. Die Analyse wird im Rahmen der Head-driven Phrase Structure Grammar (HPSG) $durchgef\"{u}hrt$, bei der ich wooer von der Bewegung der Komplemente aus dem Nachfeld noch von der Linearen $Pr\"{a}zedenz$ mit neuen Merkmalen ausgehe, sondem von der Typenhierarchie der Konstruktionentypen mit relevanten $Lexikoneintr\"{a}gen$. Es wird zu zeigen versucht, dass die dritte Konstruktion ein Komplementationstyp von non-flip-phrase und partial-vp-extra­phrase ist.

• The monthly packaging world
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• s.260
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• pp.98-105
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• 2014

한국파렛트컨테이너협회가 추최하고 산업통상자원부, 국가기술표준원, 물류신문사가 후원하는 제11회 한국파렛트컨테이너산업대상 시상식이 11월 14일 중소기업중앙회 그랜드홀에서 열렸다. 한국파렛트컨테이너산업대상은 우리나라 산업물류의 혁신을 위하여, 일관수송용 국가표준파렛트인 T-11형과 T12형 파렛트 및 이와 정합성을 갖는 표준 컨테이너의 생산 및 사용 등 보급확산을 통하여, 물류비를 절감하고 국가경쟁력을 향상시켜 가는, 가장 모범이 되는 우수한 기업과 이에 공헌한 개인을 발굴 시상함으로써, 우리나라의 모든 기업들이 유닛로드시스템을 구축하여 물류표준화를 통한 산업물류 효율화를 앞당기는데 기여하기 위해 매년 시상하고 있는 제도이다. 나아가 아시아의 표준 파렛트에 의한 유닛로드시스템의 구축으로 막힘없는 물류의 목표를 달성해 나가는데 보다 더 효과적인 계기가 될 것으로 기대하고 있다. 제11회 한국파렛트컨테이너산업대상 시상식에서 산업통상자원부장관 표창으로는 (주)골드라인, (주)장연, 롯데로지스틱스(주), (주)이랜드리테일, 강병광 상무이사(주식회사 대상)가 수상의 영예를 안았으며, 국가기술표준원장 표창에는 재영솔루텍(주), 세양테크, 한국청정음료(주), (주)삼흥농업회사법인, 배종훈 부문장((주)아워홈) 등이 수상했다. 이 외에도 (주)한국프라텍, (주)비버, (주)대길팩, 영농조합법인 서귀포한라 등이 한국파렛트컨테이너협회장 표창을 받았다. 본 고에서는 수상 업체 및 수상자들의 공적사항을 살펴보도록 한다.

• The monthly packaging world
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• s.248
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• pp.88-93
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• 2013

한국파렛트컨테이너협회가 주최하고 산업통상자원부, 기술표준원, 물류신문사가 후원하는 제10회 한국파렛트컨테이너산업대상 시상식이 지난 달 11일 기술표준원 중강당에서 열렸다. 10회째를 맞이한 한국파렛트컨테이너산업대상은 우리나라 산업물류의 혁신을 위한 시상식으로 일관수송용 국가표준 파렛트인 T-11형 파렛트 및 이와 정합성을 갖는 표준 컨테이너의 생산 및 사용 등 보급확산을 통하여, 물류비를 절감하고 국가경쟁력을 향상시켜가는 우수한 기업과 이에 공헌한 개인을 발굴 하고 있다. 이를 통해 우리나라의 모든 기업들이 유닛로드시스템을 구축하여 물류표준화를 통한 산업물류 효율화를 앞당기는데 기여하고자 매년 시행되고 있다. 나아가 아시아의 표준 파렛트에 의한 유닛로드시스템의 구축으로 막힘없는 물류의 목표를 달성해 나가는데 보다 더 효과적인 계기가 될 것으로 기대하고 있다. 영예의 산업통상자원부 장관 표창에는 (주)이마트, 구리청과(주), 진성산업(주), 전일목재산업(주), 한국포장기술연구소 김영호 소장이 수상했다. 기술표준원장 표창에는 (주)코스모스제과, 영농조합법인 광수, 한성목재공업(주), (주)한성목재, 유한킴벌리(주) 정성태 수석부장이 수상했으며 한국파렛트컨테이너협회장 표창으로는 (주)렉셈, 청아랑영농조합법인, 우리프라스틱공업(주)가 수상했다. 본 고에서는 제10회 한국파렛트컨테이너산업대상 수상 업체 및 수상자들의 공적사항을 살펴보도록 한다.

• Journal of KIISE:Computing Practices and Letters
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• v.10 no.3
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• pp.273-281
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• 2004

There is the temporal correlation of the video sequence between the motion vector of current block and the motion vector of previous block. In this paper, we propose the prediction search algorithm for block matching using the temporal correlation of the video sequence and the center-biased property of motion vectors. The proposed algorithm determines the location of a better starting point for the search of an exact motion vector using the point of the smallest SAD(sum of absolute difference) value by the predicted motion vector from the same block of the previous frame and the predictor candidate point on each search region. Simulation results show that PSNR(Peak-to-Signal Noise Ratio) values are improved up to the 1.06㏈ as depend on the video sequences and improved about 0.19∼0.46㏈ on an average except the full search(FS) algorithm.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.8C
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• pp.824-831
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• 2005

In the reconstruction of high resolution (HR) images from low resolution (LR) images frames, the error in the estimated motion degrades the reliability of the reconstructed HR image. Some methods were recently proposed where motion estimation and HR reconstruction is performed simultaneously. The estimated motion is still prone to error when it is based on a simple block matching. In this paper, we propose a reconstruction of a HR image by applying POCS and a regularized block matching simultaneously. In this method, a motion vector is obtained from a regularized block matching algorithm since the motion of a pixel in an image is highly correlated with the motion in neighboring regions. Experimental results show that the improved accuracy of the estimated motion vectors results in higher PSNR of the reconstructed HR images.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.17 no.12
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• pp.1465-1474
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• 1992

This paper describes a new overlapped object recognition method using extended local features. At first, we extract the extended local features consisting of corners, arcs, parallel-lines, and corner-arcs from the images consisting of model objects. Based on the extended local features we construct a knowledge-base. In order to match objects, we also extract the extended local features from the input image, and then check the compatibility between the extracted features and the features in the knowledge-base. From the set of compatible features, we compute geometric transforms. If any geometric transforms are clustered, we generate the hypothesis of the objects as the centers of the clusters, and then verify the hypothesis by a reverse geometric transform. An experiment shows that the proposed method increases the recognition rate and the accuracy as compared with existing methods.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.19 no.7
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• pp.1296-1303
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• 1994

In this paper, a design of active inductors and their application in a frequency converter are proposed. In MMIC design, passive spiral inductor takes larger area than any other passive and active elements. A conventional spiral inductor generates undesired crosstalk, and its performance cannot have certainty and reproducibility. Meanwhile the active inductor eliminates these drawbacks, and operates for much wider bandwidth. Furthermore, its size is smaller and nearly independent of inductance. the performance of MMIC frequency converter with active inductors is directly compared with that of the frequency converters with spiral inductors. The size is 28.6% smaller with better performance in MMIC frequency converter.