• 건축역사연구
• /
• 제21권3호
• /
• pp.29-44
• /
• 2012

If cultural Heritageis located in the downtown, conservation areas was developed or is being developed In most cases Therefore, in this case, the relative height of the building during construction than the regulatory limit is reasonable, is emerging need to be objectified. This study was utilizes GIS analysis techniques for 'View Corridor' and building height standards were determined. First, 'View Corridor' set and building height restrictions for the analysis of urban environmental factors were analyzed in. In particular, the topography and urban planning, and existing buildings, including the distribution of the physical urban environment, with detailed analysis on the major historical and cultural assets with a combination of a review of the impact factor for the formation of the urban landscape recognize the scope has been expanded. Second, the key selection criteria for View point largely focused on cultural Heritageand the surrounding communicative point of view and, consequently, connectivity, and symbolism, accessibility, analysis, factors such as Prospect, setting the standards by applying a detailed assessment of each item the main view point were derived. Third, the derived key View point on the terrain and landscape characteristics simulation analysis carried out by considering together the main axis, and this suggests a reasonable height for the proposed standards.

• KIEAE Journal
• /
• 제6권4호
• /
• pp.3-10
• /
• 2006

To preserve scenic-view of Gwanak Mountain from the urban development, the viewshed component ratio and the scenic-view preference are investigated and analyzed by selecting view points at Nangokro. After 16 candidate view points are selected from the site, sight component ratio is measured through visual structure analysis and preference are measured by using the Likert scale. In addition, factor analysis, and regression analysis were conducted to examine the relationship between influencing factors and preference. As a result of the regression analysis of the 9 factors to influence the scenic-view preference, two factors such as degree of natural landscape and degree of arrangement around the site are chosen to influence the scenic-view preference. Through the preference factor analysis, two preference factors are selected as follows; 1) The factor of the landscape formation - Existence and nonexistence of the scenic-view conservation, degree of the landscape opening, and degree of natural landscape, degree of the landscape originality, and degree of the landscape sequence, degree of the landscape intimacy 2) The factor surrounding the landscape - Degree of arrangement around the site, degree of the landscape complexity, and atmosphere around the site.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제13권1호
• /
• pp.291-304
• /
• 2019

This paper proposes a dynamic-tiling-based bandwidth-efficient (DTBE) virtual reality (VR) streaming scheme. We consider 360-degree VR contents with multiple view points such as the front, back, upper, and bottom sides. At a given time, the focus of a client is always bound to a certain view among multiple view points. By utilizing this perspective, under our proposed scheme, tiles with high encoding rates are selectively assigned to the focused view where multiple view points consist of multiple tiles with different encoding rates. The other tiles with low encoding rates are assigned to the remaining view points. Furthermore, for reducing view adaptation delay, we design a novel rapid view adaptation mechanism that selectively delivers an I-frame during view point updates by using frame indexing. We implement the proposed scheme on a commercial VR test bed where we adopt the MPEG media transport (MMT) standard with high-efficiency video coding (HEVC) tile modes. The measurement-based experiments show that the proposed scheme achieves an average data usage reduction of almost 65.2% as well as average view adaptation delay reduction of almost 57.7%.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제15권12호
• /
• pp.4492-4507
• /
• 2021

In camera sensor networks (CSNs), in order to better identify the point, full-view problem requires capture any facing direction of target (point or intruder), and its coverage prediction and sensor density issues are more complicated. At present, a lot of research supposes that a large number of homogeneous camera sensors are randomly distributed in a bounded square monitoring region to obtain full-view rate which is close to 1. In this paper, we deduce the sensor density prediction model in heterogeneous deployed CSNs with arbitrary full-view rate. Aiming to reduce the influence of boundary effect, we introduce the concepts of expanded monitoring region and maximum detection area. Besides, in order to verify the performance of the proposed sensor density model, we carried out different scenarios in simulation experiments to verify the theoretical results. The simulation results indicate that the proposed model can effectively predict the sensor density with arbitrary full-view rate.

• 한국실내디자인학회논문집
• /
• 제38호
• /
• pp.48-56
• /
• 2003

This study is purposed to find the transition of the perspective connected with visual modality. The perspective based on Greek optics and euclidean geometry and rediscovered in Renaissance represents the object according to the particular moment and the point of view, is a principal fact which affect architecture, the form of a city and the spatial organization and symbolizes an ideal of the times. It embodied perception which treats the space rationally on the basis of realism and became visual modality based on the separation of the seeing subject and the world of the object. The point of view became one with the vanishing point which made up the shape and after Renaissance for four hundred years a straight line, a right angle and a circle got to be favorite geometrical choices in architecture. A fixed point of view of the subject is getting to change and break up fundamentally by the new visual technologies of the modem times.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2012년도 춘계학술대회 논문집
• /
• pp.291-292
• /
• 2012

• 한국조경학회지
• /
• 제30권5호
• /
• pp.1-15
• /
• 2002

The purpose of this study is to consider the relationship between point of view and prospect behavior occurring in the experience of a painted landscape. This study analyzes one hundred scenes from the 'real landscape painting' by Kyumjae, one of the most famous landscape painters in 18th century Korea. The results of the study are as follows: 1. It clarified that Kyumjae's real landscape painting's 100 scenes have many view points such as roads, bridges, pavilions, mansions, towers, terraces, hillsides, bases of mountains, broad flat roots, brooksides, and ferries that are apt to occur in the experience of a landscape. The spatial characteristics of view points are expanded fields of vision, evening and night scenes, edges of landforms and structures from which to improve ones vantage point. 2. It showed that 99 out of real landscape painting's 100 scenes depict a view point'to look'and 79 of 'to look through', 73 of 'look around'and 24 of 'to look over'. 3. It showed that real landscape painting's 100 scenes depict that the view point 'to look' is mainly upon a road from which people are looking over an elevated landscape such as the top of a mountain or rockwall. The view behaviors of looking down are depict 15 pavilions, 14 mansions, 2 broad rocks and 10 mountain tops on which people experience landscapes such as fields, rural communities and streams. The view behaviors to look depict 33 ships, 24 roads, 24 pavilions, 19 mansions and 12 terraces on which people experience landscapes such as distant views of mountains, rivers and landscapes. The view behaviors to look around to obtain orientation of landscape are depict 16 pavilions, 10 mountaintops. To glimpse on the way of journey depict 33 ships and 29 roads. To look over depict 11 mansions and 6 pavilions on which experience borrows the landscape. To look through landscapes such as rivers, mountains and rockwalls depict 15 roads, 14 pavilions and 11 mansions. To exchange looks depict 30 ships, 14 roads, 12 pavilions and 12 mansions. We expect that these results might give clues toward the experience of landscapes and the practice of landscape design methods which select viewpoints, and in the design of view points suitable to prospect behaviors.

• 한국정보통신학회논문지
• /
• 제17권8호
• /
• pp.1908-1918
• /
• 2013

자유시점 또는 오토스테레오스코픽 비디오 서비스는 3차원 영상을 제공하는 차세대 방송 시스템으로, 여러 시점의 영상들이 필요하다. 본 논문에서는 가상 시점 영상을 고속 생성하기 위해 알고리즘 병렬 구조를 최적화하고, Compute Unified Device Architecture(CUDA)를 이용한 General Propose Graphic Processing Unit(GPGPU) 기반의 중간시점 영상 고속 생성을 위한 최적화 기법을 제안한다. 제안한 방법은 좌/우 깊이영상을 병렬화시킨 스테레오 정합알고리즘을 이용하여 변위정보를 얻은 후, 깊이 당 변위증분을 계산하여 사용한다. 계산된 변위증분을 사용하여 해당 각 화소들의 깊이 값을 이용하여 좌/우 영상들을 원하는 위치의 중간시점으로 영상을 이동시킨다. 그 다음, 비폐색영역들을 서로 상호 보완하여 없앤 다음에 남은 홀들은 홀 필링으로 없애 최종 중간시점 영상을 생성한다. 제안한 방법을 구현하여 여러 실험 영상에 적용한 결과, 생성된 중간시점 깊이영상의 화질은 평균 PSNR 30.47dB이었으며, Full HD급 중간시점 영상을 초당 38 프레임 정도 생성하는 속도를 보였다.

• 조명전기설비학회논문지
• /
• 제27권10호
• /
• pp.9-14
• /
• 2013

The monitoring system is an absolutely required system for improving a performance to consider the situation for the hybrid generation of the photovoltaic (PV) and wind power (WP) energy experimental research complex. This system is to monitor with the railroad switching point heating system using LabVIEW to the hybrid generation of the PV and WP. The monitoring system of this paper is a program monitoring the hour, day and total of the voltage and current that made from the hybrid generation of PV and WP. In experiment, we acquired the power data according to time at the day of PV and WP. We have confirmed the possibility of the real time monitoring system using LabVIEW with the railroad switching point heating system as the hybrid generation of the PV and WP.

• 전자공학회논문지SC
• /
• 제41권4호
• /
• pp.45-54
• /
• 2004

한글 본 논문에서는 개방된 광역을 대상으로 하는 옥외 증강현실을 위한 관측점 트래킹 시스템을 구현하였다. 옥외용 증강현실 시스템은 관측점이 이동하면 주위환경이 변하기 때문에 이동체의 위치와 관측시점의 위치를 트래킹 해야만 실제영상과 가상영상의 정확한 정합이 가능하다. 따라서 옥외용 증강현실의 전역 트래킹은 이동체의 위치와 방향을 추적하는 시스템이므로 GPS를 응용하여 구현하였다. 지역 트래킹 시스템은 이동할 때 현재 위치에서 이동체 내부의 사용자가 바라보는 시점의 변화를 추적하기 위한 장치이므로 제한된 영역에서 시점 트래킹이 가능한 광학식 위치 추적 시스템을 사용하여 구현하였다. 따라서 본 논문은 실제 영상과 실시간으로 트래킹된 가상정보를 정합함으로서 제한적이지만 옥외용 증강현실 시스템의 응용분야에 적용 가능성을 보였다.