Search Results 1-20 of 34

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  • Efficient Approximate 3-Dimensional Point Set Matching Using Root-Mean-Square Deviation Score

    SASAKI Yoichi , SHIBUYA Tetsuo , ITO Kimihito , ARIMURA Hiroki

    … <p>In this paper, we study the approximate point set matching (APSM) problem with minimum RMSD score under translation, rotation, and one-to-one correspondence in <i>d</i>-dimension. … Next, we present another algorithm that runs fast with high probability when a set of parameters are fixed. …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E102.A(9), 1159-1170, 2019

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  • Model for 3D Printing Created from Multiview 2D Silhouette Images

    LIAO Chao-Yaug , Ren You-Lin , WANG Douglas W. , LAI Jiing-Yih , LEE Ju-Yi

    … <p>In this study, a simple method to construct printable models of objects for use in three-dimensional (3D) printing is demonstrated. … Furthermore, a novel alignment-by-image-matching method is employed to effectively integrate local camera positions into a global coordinate system. … All series of images are transformed and set into a 3D space according to their camera parameters. …

    Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2017.9(0), 130, 2017

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  • Efficient Approximate 3-Dimensional Point Set Matching and Its Application to Molecular Pattern Matching  [in Japanese]

    佐々木 耀一 , 渋谷 哲朗 , 伊藤 公人 [他]

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 115(112), 335-341, 2015-06-23

  • Efficient Approximate 3-Dimensional Point Set Matching and Its Application to Molecular Pattern Matching  [in Japanese]

    佐々木 耀一 , 渋谷 哲朗 , 伊藤 公人 [他]

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 115(111), 219-225, 2015-06-23

  • Phase-Based Window Matching with Geometric Correction for Multi-View Stereo

    SAKAI Shuji , ITO Koichi , AOKI Takafumi , WATANABE Takafumi , UNTEN Hiroki

    … Methods of window matching to estimate 3D points are the most serious factors affecting the accuracy, robustness, and computational cost of Multi-View Stereo (MVS) algorithms. … Most existing MVS algorithms employ window matching based on Normalized Cross-Correlation (NCC) to estimate the depth of a 3D point. …

    IEICE Transactions on Information and Systems E98.D(10), 1818-1828, 2015

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  • Combination of Least Squares and NCC Methods on Matching Technique for 3D Information Extraction in Urban Area (Space, Aeronautical and Navigational Electronics : ICSANE 2014 (International Conference on Space, Aeronautical and Navigational Electronics))

    KIM Yeji , KIM Yongli

    Matching technique using stereo satellite images requires to extract 3D information of buildings and man-made constructions in urban areas, while previous matching studies focused on matching of interest points on the ground to avoid errors from displacement tie points on tall objects of a stereo image set. …

    Technical report of IEICE. SANE 114(264), 113-116, 2014-10-22

  • Development of the 3D Vision Making System Using the Stereo Fisheye Camera  [in Japanese]

    Tokunaga Shuichi

    … Here, any viewpoint is center point of a made three-dimensional vision. … As for the method to set a viewpoint, the center point in a three-dimensional vision for the right eye is set with a mouse using an image for the right eye displayed on a PC. … The image of the sub-region where this viewpoint is center point assumes it a template to set the viewpoint of an image for the left eye. …

    香川高等専門学校研究紀要 (5), 147-151, 2014-06

  • A Method of Detecting Utility Poles by Analyzing 3D Point Cloud  [in Japanese]

    Kamei Katsuyuki , Togashi Kenji , Hashimoto Yoshiaki , Nishikawa Keiichi

    … We have developed a new method of detecting utility poles in urban area by analyzing 3-dimensional point cloud acquired by the mobile mapping system (MMS). … The output is point cloud, a large set of 3-dimensional points which represents 3-dimensional model of the area. …

    IEEJ Transactions on Electronics, Information and Systems 134(5), 747-754, 2014

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  • 2A2-T01 Part SLAM : Fast Succinct Map Matching via Unsupervised Part-based Scene Modeling(Localization and Mapping)  [in Japanese]

    OGAWA Kenta , HANADA Shogo , TANAKA Kanji

    … In this paper, we explore the challenging 1-to-N map matching problem, which exploits a compact description of map data, to improve the scalability of map matching techniques used by various robot vision tasks. … We propose a first method explicitly aimed at fast succinct map matching, which consists only of map-matching subtasks. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2014(0), _2A2-T01_1-_2A2-T01_4, 2014

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  • S3D Extension and Performance Improvement of MR-PreViz System (2) Stereo Camera Tracking Using ICP Algorithm  [in Japanese]

    MORI Shohei , SHIBATA Fumihisa , KIMURA Asako , TAMURA Hideyuki

    … This paper presents a method of real-time 6-DOF stereo camera tracking using Iterative Closest Point (ICP) algorithm used in our mixed reality based Pre-Visualization (PreViz) system for stereoscopic 3D filmmaking. … The rule of stereo ng setting, called "1/30th rule, " is introduced for reduce stereo search range in stereo matching and multi-threading technology is actively used for acceleration. …

    Technical report of IEICE. Multimedia and virtual environment 112(386), 99-104, 2013-01-23

  • S3D Extension and Performance Improvement of MR-PreViz System (2) Stereo Camera Tracking Using ICP Algorithm  [in Japanese]

    MORI Shohei , SHIBATA Fumihisa , KIMURA Asako , TAMURA Hideyuki

    … This paper presents a method of real-time 6-DOF stereo camera tracking using Iterative Closest Point (ICP) algorithm used in our mixed reality based Pre-Visualization (PreViz) system for stereoscopic 3D filmmaking. … The rule of stereo ng setting, called "1/30th rule, " is introduced for reduce stereo search range in stereo matching and multi-threading technology is actively used for acceleration. …

    Technical report of IEICE. PRMU 112(385), 99-104, 2013-01-23

  • Image Based Detection of 3D Scene Change

    LIN Baowei , UENO Yuji , SAKAI Kouhei , TAMAKI Toru , RAYTCHEV Bisser , KANEDA Kazufumi , ICHII Koji

    … In this paper we propose a method for 3D scene change detection. … We particularly target the case when a 3D scene can be changed by disasters and accidents. … Assuming that there is a 3D point cloud of the 3D scene reconstructed before the change by using a set of training images, the camera positions of newly taken query images with small changes can be estimated. …

    IEEJ Transactions on Electronics, Information and Systems 133(1), 103-110, 2013-01-01

    J-STAGE  References (16)

  • 1P1-E03 3D Thermography Mapping for Mobile Robots using 3D SOKUIKI Sensor and Infrared Camera(3D Measurement/Sensor Fusion)  [in Japanese]

    OTAKE Kazuki , OKADA Yoshito , NAGATANI Keiji , YOSHIDA Kazuya

    … In urban search arid rescue situations, a 3D mapping technology by rescue robots is very useful to plan rescue missions. … Therefore, we set our research object to construct a 3D thermography map by mobile robots. … To realize the above, we fuse both temperature image acquired from infrared camera and range data acquired from 3D SOKUIKI sensor. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2011(0), _1P1-E03_1-_1P1-E03_4, 2011

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  • An Efficient Algorithm for Point Set Registration Using Analytic Differential Approach

    CHEN Ching-Chi , HSU Wei-Yen , CHIU Shih-Hsuan , SUN Yung-Nien

    … It is usually used in 2D mosaics to construct the whole image of a biological specimen or in 3D reconstruction to build up the structure of an examined specimen from a series of microscopic images. …

    IEICE Transactions on Information and Systems 93(11), 3100-3107, 2010-11-01

    J-STAGE  References (31)

  • Interpolation of Arbitrary Point Sequence by Triple Clothoid Curves

    LAN Fengli , TAMAI Hirofumi , MAKINO Hiroshi

    … The triple clothoid is a set of three clothoid segments connected internally with curvature continuity. … It has sufficient parameters needed for tangent and curvature matching at its terminals. … The triple clothoid segments are used to construct a smooth transition passing through arbitrary point sequence. … Those results are extended from two-dimensional (2D) to three-dimensional (3D) space. …

    Journal of the Japan Society for Precision Engineering 76(10), 1194-1199, 2010

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  • An Efficient 3D Geometrical Consistency Criterion for Detection of a Set of Facial Feature Points

    YUASA Mayumi , KOZAKAYA Tatsuo , YAMAGUCHI Osamu

    … We propose a novel efficient three-dimensional geometrical consistency criterion for detection of a set of facial feature points. … The proposed method is able to calculate alignment error of a point set rapidly because calculation is not iterative. … Also the method does not depend on the type of point detection method used and no learning is needed. …

    IEICE Transactions on Information and Systems 91(7), 1871-1877, 2008-07-01

    J-STAGE  References (10)

  • A study on a stable bronchoscope tracking method for bronchial deformation without fiducial markers  [in Japanese]

    ISHITANI Kazuyoshi , DEGUCHI Daisuke , KITASAKA Takayuki , MORI Kensaku , SUENAGA Yasuhito , IMAIZUMI Kazuyoshi , HASEGAWA Yoshinori

    … In our privious method, we estimated the rigid transformation matrix between the coordinate systems by matching the outputs of the position sensor and the medial line of the bronchi extracted from the CT image taken prior to bronchoscopy. … In this method, we estimate the non-rigid transformation between the coordinate systems by the Chui's non-rigid point matching algorithm. …

    IEICE technical report 107(461), 29-34, 2008-01-25

    References (14)

  • A Method for Extraction of Corresponding Point Pairs among Lung Vessels In Multi-Temporal Helical CT Data  [in Japanese]

    HANAIZUMI Hiroshi

    … In order to detect tumor accurately, we have to register lung vessels in one data set onto the other precisely. … Lung regions in each data set were divided into many trigonal pyramids, respectively, whose vertices were the corresponding points. … Then, 3D Affme transformation was applied to all corresponding trigonal pairs for smooth registration between them. …

    IEICE technical report 107(461), 7-12, 2008-01-25

    References (13)

  • An Experimental Study on 3D Measurement Method Using a Narrow-Baseline Mobile Stereo Camera  [in Japanese]

    Miyazawa Kazuyuki , Takahashi Toru , Aoki Takafumi

    … This paper discusses a 3D measurement method using a mobile stereo camera oriented to digital archiving of cultural assets. … The multiple 3D data sets reconstructed from each stereo image can be aligned using camera motion parameters estimated from 3D point correspondences. … Using a narrow-baseline stereo camera, the 3D measurement system used in this paper is very compact and is easy to handle compared to active measurement systems. …

    Proceedings of the Japan Joint Automatic Control Conference 51(0), 244-244, 2008

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  • 3D Reconstruction by Projective Voxel Space in Video Images : 3D Reconstruction using Dense Point Set based on Texture Mapping  [in Japanese]

    TACHIBANA Hidekazu , KONDO Katsuya , KOBASHI Syoji , HATA Yutaka

    … Recently, tracking algorithm has been actively researched to reconstruct 3D shape from video images. … Currently, it is difficult to track a number of feature points although the various tracking algorithm based on gradient method or block matching, was proposed. … In this report, we proposed an approach to track dense point set by Projective Voxel Space (PVS), and reconstruct 3D shape using the tracked points. …

    IEICE technical report 107(374), 19-24, 2007-12-04

    References (13)

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