• 한국지리정보학회지
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• 제1권2호
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• pp.67-79
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• 1998

대부분의 GIS 응용 프로그램은 다수의 공간객체에 대하여 주로 읽기 연산을 수행하며 접근하는 공간객체가 복합 객체인 경우 그 복합객체와 그 복합객체가 포함하는 공간객체에 모두 접근하게 된다. GIS 응용 프로그램에서 공간객체의 생성, 삭제, 변경연산은 매우 드물게 일어나지만 다수의 공간객체에 대하여 수행된다. 본 논문은 GIS 응용 프로그램의 이러한 특성을 고려하여 다수의 공간객체들을 신속히 탐색하기 위한 다단계 사전인출 질의의 개념을 제시하고 생성하는 영속객체들을 최적의 성능으로 데이타베이스에 반영하기 위한 지연쓰기 기능을 객체지향 데이타베이스 시스템인 바다-III에 설계하고 구현한 내용을 제시한다. 다단계 사전인출 질의는 그 질의를 만족하는 객체들뿐만 아니라 그 객체들이 포함하는 객체들을 사용자가 명시한 단계만큼 데이타베이스로부터 인출하여 클라이언트 캐쉬에 등록하는 기능이다. 지연쓰기 기능은 응용 프로그램이 생성한 객체들에 대하여 서버의 부담을 최소화하고 클라이언트와 서버간의 통신을 최소화하면서 데이타베이스에 반영하는 기법이다. 이들 두 기능은 GIS 응용과 같이 다수의 복합객체를 탐색하고 생성하는 응용에 적합하다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
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• pp.85-88
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• 2001

Unlike rigid objects or This paper developes the algorithm for segmenting gaseous objects on an image plane. Unlike rigid objects or solid non-rigid objects, gaseous objects vary in density even within single-object regions and the edge intensity differs at different locations. So, an edge detector may detect only strong edges and detected edges may be an incomplete parts of an whole object's boundary. Due to this property of gaseous objects, it is not easy to distinguish the real edges of gaseous objects from the noisy-like edges such as leaves. Our algorithm uses two criteria of edge intensity and edge's line connectivity, then applies fuzzy set so as to obtain the proper threshold of the edge detector

• 전자공학회논문지B
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• 제31B권7호
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• pp.190-198
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• 1994

In this paper, we propose the cross-section processing method which is simple in describing the SHGC of objects in a range image and which can describe the SHGC of occluded objects for the recognition of 3D objects. This method produces the cross-sections of an object along the assumed axis of the SHGC and describes the SHGC of the object by processing the produced cross-sections of the object using $\psi$ -S curves with invariant properties in position and size. Our method is simple in a process and can descirbe the SHGC of partially occluded objects because it uses range images with 3-D informations of objects without matching contours of objects with a model base. Thus it is a useful description method of a range image for the recognition of 3D objects shaped in SHGC form and we proved the usefulness of it in experiments.

• 보존과학회지
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• 제5권2호
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• pp.35-44
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• 1996

We propose a new method to remove salts that have permeated into excavated metal objects. This method cleans the excavated metal objects by using high temperature, high pressure deoxvgenated water containing inhibitors for corrosion of metals. The method greatly reduces the washing time compared with previous methods. Waste water from the method does not need treatment, nor do chemicals need to be removed from the metal objects. Furthermore, this method is applicable to some kind of metals(for example iron objects, bronze objects). We measured quantitatively the soluble salts dissolved from actual metal objects and found that there was a large difference between soluble chloride ions and sulfate ions.

• 한국가구학회지
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• 제15권2호
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• pp.41-51
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• 2004

Since Cubists represented a way of expressing image moving away from traditional illusion effect, new realities represented by collage and assemblage. Furthermore, Marcel Duchamp, a French Dadaist, suggested the concept of ready-made that everyday objects exhibited in an odd way in a gallery. These early fine art cases highly influenced to furniture design in the second half of the twentieth century. The use of objects in contemporary furniture is closely related to the emergence of Pop Art in the late 1950s and that of Postmodernism. After the 1970s the use of found objects were frequently utilized in furniture design of all over the countries. As an ecological issue became a new consideration to furniture designers, found objects also gave a chance to use recycled materials. Even in studio furniture area which is considered wood as a major material at the early stage, many studio furniture designers began to adapt found objects in their designs as a new source of Inspiration after the 1970s. This study explored various examples of found objects in furniture design and examined the meaning of the use in different designers and regions.

• 한국멀티미디어학회논문지
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• 제19권4호
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• pp.681-688
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• 2016

In the intelligent video surveillance, recognizing the moving objects is important issue. However, the conventional moving object recognition methods have some problems, that is, the influence of light, the distinguishing between similar colors, and so on. The recognition methods for the moving objects using depth information have been also studied, but these methods have limit of accuracy because the depth camera cannot measure the depth value accurately. In this paper, we propose a recognition method for the moving objects by using both the depth and the color information. The depth information is used for extracting areas of moving object and then the color information for correcting the extracted areas. Through tests with typical videos including moving objects, we confirmed that the proposed method could extract areas of moving objects more accurately than a method using only one of two information. The proposed method can be not only used in CCTV field, but also used in other fields of recognizing moving objects.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.139-142
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• 2008

Construction Management by using 4D CAD system analyzes operations information based on 3D and 4D objects. But it is difficult to provide a variety of documents linked by 4D objects in a lump from 4D CAD system based on visual object, and to get an optimal decision-making information to conduct business. Therefore, it is necessary to construct effective construction information management systems and to organize integrated information through linking non-objects to objects. This study suggests methodologies of effective construction management for railway facilities through building of framework for practical application and methodologies to link 4D objects to IETM documents. Accordingly, it is possible to establish a systematic decision-making for an effective construction management of railway facilities, and this provide integrated methodology for linking non-objects to objects.

• 한국언어정보학회지:언어와정보
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• 제13권2호
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• pp.1-27
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• 2009

This paper examines the (a)symmetries in the realization of focused subjects and objects in Korean. Through rating experiments, we demonstrate that native speakers' judgments of acceptability of sentences containing case-marked or case-ellipsed subjects and objects are sensitive to the contrastiveness strength and the discourse accessibility of focused arguments. However, our experiments also show that focused subjects exhibit stronger preference for explicit case marking over case ellipsis and that contrastiveness strength and discourse accessibility have weaker influence on the case marking and ellipsis of focused subjects compared to focused objects. We propose an account of variable case marking that is capable of subsuming both the similarities and differences between focused subjects and objects under the universal theory of markedness. In particular, it is shown that the similarities between focused subjects and objects are predicted by the proposed account based on the contrastiveness strength and the discourse accessibility of focused arguments and that the differences between focused subjects and objects follow naturally from the relative markedness of focus as subjects.

• 센서학회지
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• 제33권2호
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• pp.78-85
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• 2024

We proposed a method for visual place recognition that represents images using objects as visual words. Visual words represent the various objects present in urban environments. To detect various objects within the images, we implemented and used a zero-shot detector based on a large-scale image language model. This zero-shot detector enables the detection of various objects in urban environments without additional training. In the process of creating histograms using the proposed method, frequency-based weighting was applied to consider the importance of each object. Through experiments with open datasets, the potential of the proposed method was demonstrated by comparing it with another method, even in situations involving environmental or viewpoint changes.

• 한국안전학회지
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• 제9권1호
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• pp.31-39
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• 1994

In this study, image processing were performed to recognize the shape of objects and find its center coordinate and direction to grisp the objects by the robot automatically. The proposed methods could be applied to objects even if light is reflected, and to identify the insides and outsides of objects by using the photo sensor and the difference of surface conditions. Also image segmentation is performed to the objects close to each other. These image processing methods will be increased the safety of operators by the automation of dangerous and hazardous machine works.