• Title/Summary/Keyword: Projection area

Search Result 356, Processing Time 0.022 seconds

The Spatial Analysis and Acquistion of Precision digital data due to Cultural Properties using the Photogrammetry (영상분석기법에 의한 문화재의 정밀 수치자료 획득과 공간분석 - 성덕대왕신종에 대해 -)

  • Kang, Joon-Mook;Bae, Yeoung-Sung;Bae, Sang-Ho;Lee, Seung-Son
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.6 no.1 s.11
    • /
    • pp.65-74
    • /
    • 1998
  • The acquisition and analysis system of accurate geometrical digital data is very important in side of maintaining the traditional culture for the preservation of cultural properties. This study is on the construction and shape analysis of precise digital data to manage more successfuly using the CRP method and 3D Mono Mobile System. Also this study could acquisite 3D geometrical digital data, make such various space analysis and section, projection, and calculation of bias, area and volume and modeling by rendering technique on the misterious bell of great king of SungDuck, one of the greatest bells in periods of TongIl Silla. So, We suggest utilization of image analysis method to safety diagnosis for the maintenance of cultural properties, archeological and artistic research.

  • PDF

Effect of Radix Scutellariae on Nicotine Addiction (황금(黃芩)이 니코틴 중독에 미치는 효과)

  • Chang, Gyu-Tae;Kim, Jang-Hyun;Seo, Young-Min
    • The Journal of Pediatrics of Korean Medicine
    • /
    • v.20 no.1
    • /
    • pp.137-149
    • /
    • 2006
  • Objective : The purpose of this study is to investigate the effect of Radix Scutellariae on repeated nicotine-induced locomotor activity and c-Fos expression utilizing Fos-like immuno-histochemistry method in the nucleus accumbens, and the striatum, one of the major projection areas of the control DA system. Methods : Male Sprague-Dawley rats were divided into untreated(normal), nicotine-treated (control), Radix Scutellariae-treated(sample) groups, RS group received Radix Scutellariae(100mg/kg, i.p.) 30minutes before injection of nicotine(0.4mg/kg, s.c.) for 7days. Rat were followed withdrawal for 3 days and one challenge for 1day. Results : Systemic challenge with nicotine produced a much larger locomotor activity and expression of c-Fos in the nucleus accumbens and the striatum. Pretreatment with Radix Scutellariae decreased in nicotine-induced locomotor activity and c-Fos expression in the core, shell, straitum area. Conclusion : These results demonstrated that reduction in locomotor activity by Radix Scutellariae may be mediated by reduction of dopamine release and of postsynaptic neuronal activity in striatum, the nucleus accumbens. Out results show neurochemical evidence for the biological effects of Radix Scutellariae that ultimately may help us to understand how Radix Scutellariae can be used to treat nicotine addiction.

  • PDF

A Study on Statistical Modeling of Spatial Land-use Change Prediction (토지이용 공간변화 예측의 통계학적 모형에 관한 연구)

  • 김의홍
    • Spatial Information Research
    • /
    • v.5 no.2
    • /
    • pp.177-183
    • /
    • 1997
  • S1he concept of a class in the land-use classification system can be equally applied to a class in the land-use-change classification. The maximum likelihood method using linear discriminant function and Markov transition matrix method were integrated to a synthetic modeling effort in order to project spatial allocation of land-use-change and quantitative assignment of that prediction as a whole. The algorithm of both the multivariate discriminant function and the Markov chain matrix were discussed and the test of synthetic model on the study area was resulted in the projection of '90 year as well as '95 year land -use classification. The accuracy and the issue of modeling improvement were discussed eventually.

  • PDF

Licence Plate Recognition Using Improved IAFC Fuzzy Neural Network (개선된 IAFC 퍼지 신경회로망을 이용한 차량 번호판 인식)

  • Lee, Si-Hyun;Choi, Si-Young;Lee, Se-Yul;Kim, Yong-Soo
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.19 no.1
    • /
    • pp.6-12
    • /
    • 2009
  • In this paper, we propose a system that extracts licence plate and recognizes numerals in the licence plate. The candidate area of licence plate is extracted using the improved IAFC(Integrated Adaptive Fuzzy Clustering) fuzzy neural network. And the morphological filters are used to reduce noise from the extracted licence plate. The extracted licence plate is standardized using Hough transform and geometric transform. Backpropagation neural network is used to recognize numerals that are separated using the projection technique.

The Braking Torque Analysis of Eddy Current Brake with the Use of Coulomb′s law and the Method of Image (쿨롬 법칙과 영상법을 이용한 와전류 브레이크의 제동토크 해석)

  • Lee, Gap-Jin;Park, Gi-Hwan
    • The Transactions of the Korean Institute of Electrical Engineers B
    • /
    • v.50 no.9
    • /
    • pp.431-437
    • /
    • 2001
  • Since the eddy current problem usually depends on the geometry of the moving conductive sheet and the shape of the pole projection area, there is no general method to find out its analytical solution. The analysis of the eddy current in a rotating disk is performed in the case of time-invariant field to find its analytical solution. As a method to solve the eddy current problem, the concept of the Coulomb charge and image method are proposed with the consideration of the boundary condition. Firstly, the line charge is obtained from the volume charge generated in the rotating disk and Coulomb's law is applied. Secondly, the finite disk radius is considered by introducing an imaginary eddy current to satisfy the boundary condition that the radial component of the eddy current is zero at the edge of the relating disk. Thirdly, the braking torque is calculated by applying Lorentz force law. Finally, the computed braking torque is compared with the measured one As a result, it can be said that the proposed model presents fairly accurate results in a low angular velocity range although a large error is observed as the angular velocity of the disk increases.

  • PDF

3D Environment Perception using Stereo Infrared Light Sources and a Camera (스테레오 적외선 조명 및 단일카메라를 이용한 3차원 환경인지)

  • Lee, Soo-Yong;Song, Jae-Bok
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.15 no.5
    • /
    • pp.519-524
    • /
    • 2009
  • This paper describes a new sensor system for 3D environment perception using stereo structured infrared light sources and a camera. Environment and obstacle sensing is the key issue for mobile robot localization and navigation. Laser scanners and infrared scanners cover $180^{\circ}$ and are accurate but too expensive. Those sensors use rotating light beams so that the range measurements are constrained on a plane. 3D measurements are much more useful in many ways for obstacle detection, map building and localization. Stereo vision is very common way of getting the depth information of 3D environment. However, it requires that the correspondence should be clearly identified and it also heavily depends on the light condition of the environment. Instead of using stereo camera, monocular camera and two projected infrared light sources are used in order to reduce the effects of the ambient light while getting 3D depth map. Modeling of the projected light pattern enabled precise estimation of the range. Two successive captures of the image with left and right infrared light projection provide several benefits, which include wider area of depth measurement, higher spatial resolution and the visibility perception.

A Study on the Visual Effect of the Viewing -Window based on Psychology -focused on residential environment- (전망창의 시각효과에 대한 심리학적 고찰- 주거공간을 중심으로)

  • 함정도
    • Korean Institute of Interior Design Journal
    • /
    • no.8
    • /
    • pp.58-64
    • /
    • 1996
  • People live in an environment which affects the human b by way of ‘Affordance’ .. And the interaction between h human and the surrounding environment arises ‘the sense of place' through adoptation. Considering the human emo¬t tional and psychological needs, besides the functionalones, for the design of environment gives ‘the place’ the h humanized atmosphere. Then the viewing-window, re¬f fleeting the dweller’s sensibility and aesthetic aspect, be¬c comes an important design element for the human interi¬o or atmosphere. G Generally, the view has the character of the Panorama a and sometimes of the Picture. And the viewing - window t transfigures the visual effects by ways of ‘Framing’, at t taching the ’Screen’ and ‘Successive development' of the views through openings on the wall. Hence this study w was developed from the aesthethic view-points of archi t tecture, cinema, picture and photography etc., and the c conclusions are as follows. T The ‘Frame’ limits the boundary of the view into a p particular area, while the ‘Screen’ changes the clear view t to an obscure one. And the wall-openings located with i intervals show the fragments of the outer view in a suc¬c cessive way. And these techniques applied to the viewing window make the viewer have the associated meanings d derived from the ‘Guided Projection'. So, the associative p psychology of the viewer complements the partiality, ob¬s scurity and brokenness of the view into a complete one, a and finally the view comes to be an aesthetic one to the v vIewer.

  • PDF

The motion estimation algorithm implemented by the color / shape information of the object in the real-time image (실시간 영상에서 물체의 색/모양 정보를 이용한 움직임 검출 알고리즘 구현)

  • Kim, Nam-Woo;Hur, Chang-Wu
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.18 no.11
    • /
    • pp.2733-2737
    • /
    • 2014
  • Motion detection according to the movement and the change area detection method according to the background difference and the motion history image for use in a motion estimation technique using a real-time image, the motion detection method according to the optical flow, the back-projection of the histogram of the object to track for motion tracking At the heart of MeanShift center point of the object and the object to track, while used, the size, and the like due to the motion tracking algorithm CamShift, Kalman filter to track with direction. In this paper, we implemented the motion detection algorithm based on color and shape information of the object and verify.

Area Extraction of License Plates Using a Artificial Neural Network (인공신경망을 이용한 번호판 영역 추출)

  • hwang, suen ki;Kim, Tae-Woo
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
    • /
    • v.1 no.3
    • /
    • pp.105-109
    • /
    • 2008
  • In the current study, the authors propose a method for extracting license plate regions by means of a neural network trained to output the plate.s center of gravity. The method is shown to be effective. Since the learning pattern presentation positions are defined by random numbers, a different pattern is submitted to the neural network for learning each time, which enables it to form a neural network with high universality of coverage. The article discusses issues of the optimal learning surface for a license plate covered by the learning pattern, the effect of suppression learning of the number and headlight sections, as well as the effect of learning pattern enlargement/reduction and of concentration value conversion. Results of evaluation tests based on pictures of 595 vehicles taken at an underground parking garage demonstrated detection rates of 98.5%.

  • PDF

Management Efficiency Analysis of Local Food Stores in Jeonbuk (전북지역 로컬푸드 직매장의 경영효율성 분석)

  • Jang, Dong-Heon
    • Journal of Korean Society of Rural Planning
    • /
    • v.26 no.2
    • /
    • pp.13-24
    • /
    • 2020
  • This study analyzed the management efficiency of local food stores that are increasing recently. The analysis targeted 25 local food outlets in Jeonbuk area, and the analysis method analyzed the efficiency by CCR model. The input variables used to analyze the input-oriented efficiency of local food stores are business expenses, employees, organizational number of participating farms, and number of items, and sales are used as output variables. The main contents of the analysis are as follows. First, local food outlets increased due to support projects such as the government, local governments, and agricultural cooperatives, but their dependence was high. Second, the management efficiency of 25 local food stores in Jeonbuk is 28.0% when the efficiency is 1.000, and 72.0% of inefficient local food stores. Third, considering the projection point and the reference group, there was room for improvement in input variables. Therefore, it was determined that improvement efforts are needed to secure the continuity of local food outlets in the future. However, this study will require review of variable selection and analysis methods for further analysis.