• Title/Summary/Keyword: Reconstruct

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3 Dimensional Object Reconstruction Using Zoom Camera (줌 카메라를 이용한 3차원 물체 재구성)

  • 주도완;김주영기수용고광식
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.927-930
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    • 1998
  • This paper presents a new method for reconstructing 3 dimensional object model using a zoom camera. The proposed method uses zoom images to find the distance(D) between camera and object. Also the method uses images obtained around the object to find an $angle(\theta)$ between two connected planes of the object. With the D and $\theta,$ we can reconstruct the real sized 3-D model of object with less errors without stereo camera or rangefinder.

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Solid Reconstruction from a Set of the Orthogonal Three Views (삼면도로부터 솔리드의 자동생성에 관한 연구)

  • 박시형;이성수
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.683-686
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    • 1995
  • The automatic solid reconstruction is one of the important problems in CAD. Nowadays solid reconstruction has been done many areas, we will proposed this algorithm contribute to that development. this paper presents the algorithm to automatically reconstruct the soild form a set of the orthogonalal three views.

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Review on the Usefulness and constraints of Paleotemperature Equations for the Late Quaternary Paleoclimatic Studies (제4기 후기 고기후복원을 위한 고온도 방정식의 유용성과 한계성에 관한 고찰)

  • 박용안
    • The Korean Journal of Quaternary Research
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    • v.10 no.1
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    • pp.19-26
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    • 1996
  • This review gives an information on the oxygen isotopic composition of car-bonate and utility of paleotemperature equations to reconstruct the paleoenvironment in the late Quaternary paleoclimatic studies. The introduc-tion of various paleotemperature equations is described with respect to the de-velopment and usefulness. In addition the calculation of paleotemperature in the paleoceanographic and paleoclimatic research is constrained to provide more precise and correct approach in the interpretation of paleotemperature.

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`Y-stenting` for Endovascular Coiling of Small Basilar Tip Aneurysm

  • Cho, Chun-Sung;Kim, Young-Joon;Lee, Sang-Koo;Cho, Maeng-Ki
    • Journal of Korean Neurosurgical Society
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    • v.40 no.1
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    • pp.31-34
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    • 2006
  • This 58-year-old woman was transferred from a local hospital due to symptoms of acute headache and decreased consciousness. Computed tomography revealed a subarachnoid hemorrhage with blood clot in prepontine cistern. On the first day in the hospital, diagnostic cerebral angiography revealed a basilar tip aneurysm. We performed basilar artery to bilateral posterior cerebral artery[PCA] stent placement to reconstruct the basilar artery apex.

Automatic Image Segmention of Brain CT Image (뇌조직 CT 영상의 자동영상분할)

  • 유선국;김남현
    • Journal of Biomedical Engineering Research
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    • v.10 no.3
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    • pp.317-322
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    • 1989
  • In this paper, brain CT images are automatically segmented to reconstruct the 3-D scene from consecutive CT sections. Contextual segmentation technique was applied to overcome the partial volume artifact and statistical fluctuation phenomenon of soft tissue images. Images are hierarchically analyzed by region growing and graph editing techniques. Segmented regions are discriptively decided to the final organs by using the semantic informations.

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ELDCTRICAL COMPUTED TOMOGRAPHY FOR IMAGING OF INTERNAL RESISTIVITY AND PERMITTIVITY DISTRIBYTION

  • Kurniad, Deddy;Komiya, Kin-ichi
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.578-582
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    • 1994
  • In this paper reconstructing the internal resistivity and relative permittivity distribution is discussed. The iterative reconstruction method based on Finite Element method and Newton method were used to reconstruct both of resistivity ind permittivity distribution. The Finite Element model of impedance distribution is built in complex field of resistivity and capacitive medium. The reconstruction results based on computer simulated data and experimental data are presented.

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Integral imaging system with enhanced depth of field using birefringence lens array

  • Park, Chan-Kyu;Lee, Sang-Shin;Hwang, Yong-Seok
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1135-1137
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    • 2008
  • In this paper, it is proposed that the integral imaging technique is applied to reconstruct 3D (three dimensional) objects with enhanced depth of field, computationally and optically. Lens array using birefringence material is adopted to obtain the reconstruction. The elemental images sets are picked up through common micro lens array and utilized to present 3D reconstruction images using adopted lens array.

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Current Control of Three-Phase PWM Rectifiers without Phase Current Sensors (상전류 센서없는 3상 PWM 정류기의 전류제어)

  • 임대식;김해준;이동춘
    • Proceedings of the KIPE Conference
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    • 1999.07a
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    • pp.307-310
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    • 1999
  • This paper proposes a novel current control method of three-phase PWM rectifiers without phase current sensors. The features of this method are to reconstruct phase currents by using switching pattern of space vector modulation and to estimate phase currents by a predictive state observer for practical applications. Simulation results show that the performance of the proposed system is nearly the same as that of sensor-based system.

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3D Box Reconstruction Using Depth-Point (깊이좌표를 이용한 3차원 육면체 재구성)

  • Shin, Sung-Sik;Song, Ju-Whan;Gwun, Ou-Bong
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.739-740
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    • 2008
  • Method for 3D reconstruction from image points and geometric clues can be roughly classified as "model-based" and "constraint-based". We present a new method to reconstruct from one image a scene using depth-point. The our method is benchmarked synthetic data and its effectiveness is shown on photograph data.

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The Development of Multi-view point Image Interpolation Method Using Real-image

  • Yang, Kwang-Won;Park, Young-Bin;Huh, Kyung-Bin
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.129.1-129
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    • 2001
  • In this paper, we present an approach for matching images from finding interesting points and applying new image interpolation algorithm. New algorithms are developed that automatically align the input images match them and reconstruct 3-D surfaces. The interpolation algorithm is designed to cope with simple shapes. The proposed image interpolation algorithm generate a rotation image about vertical axes by an any angle from 4 base images. Each base image that was obtained from CCD camera has an angle difference of 90$^{\circ}$ The proposed image interpolation algorithm use the geometric analysis of image and depth information.

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