Search Results - "Bok, Yunsu"

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  1. 1

    Geometric Calibration of Micro-Lens-Based Light Field Cameras Using Line Features by Bok, Yunsu, Jeon, Hae-Gon, Kweon, In So

    “…We present a novel method for the geometric calibration of micro-lens-based light field cameras. Accurate geometric calibration is the basis of various…”
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    Journal Article
  2. 2

    Accurate depth map estimation from a lenslet light field camera by Hae-Gon Jeon, Jaesik Park, Gyeongmin Choe, Jinsun Park, Yunsu Bok, Yu-Wing Tai, In So Kweon

    “…This paper introduces an algorithm that accurately estimates depth maps using a lenslet light field camera. The proposed algorithm estimates the multi-view…”
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    Conference Proceeding
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    Extrinsic calibration of a camera and a 2D laser without overlap by Bok, Yunsu, Choi, Dong-Geol, Kweon, In So

    Published in Robotics and autonomous systems (01-04-2016)
    “…This paper presents a practical means of extrinsic calibration between a camera and a 2D laser sensor, without overlap. In previous calibration methods, the…”
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    Journal Article
  5. 5

    Structure-From-Motion in 3D Space Using 2D Lidars by Choi, Dong-Geol, Bok, Yunsu, Kim, Jun-Sik, Shim, Inwook, Kweon, In So

    Published in Sensors (Basel, Switzerland) (03-02-2017)
    “…This paper presents a novel structure-from-motion methodology using 2D lidars (Light Detection And Ranging). In 3D space, 2D lidars do not provide sufficient…”
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    Journal Article
  6. 6

    Sensor fusion of cameras and a laser for city-scale 3D reconstruction by Bok, Yunsu, Choi, Dong-Geol, Kweon, In So

    Published in Sensors (Basel, Switzerland) (04-11-2014)
    “…This paper presents a sensor fusion system of cameras and a 2D laser sensorfor large-scale 3D reconstruction. The proposed system is designed to capture data…”
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    Journal Article
  7. 7

    Accurate Camera Calibration Robust to Defocus Using a Smartphone by Ha, Hyowon, Bok, Yunsu, Joo, Kyungdon, Jung, Jiyoung, Kweon, In So

    “…We propose a novel camera calibration method for defocused images using a smartphone under the assumption that the defocus blur is modeled as a convolution of…”
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    Conference Proceeding Journal Article
  8. 8

    Extrinsic calibration of non-overlapping camera-laser system using structured environment by Yunsu Bok, Dong-Geol Choi, Vasseur, Pascal, In So Kweon

    “…In this paper are presented simple and practical solutions to extrinsic calibration between a camera and a 2D laser sensor, without overlap. Previous methods…”
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    Conference Proceeding
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    Autonomous homing based on laser-camera fusion system by Dong-Geol Choi, Inwook Shim, Yunsu Bok, Tae Hyun Oh, In So Kweon

    “…Building maps of unknown environments is a critical factor for autonomous navigation and homing, and this problem is especially challenging in large-scale…”
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    Conference Proceeding
  11. 11

    Two-phase approach for multi-view object extraction by Sungheum Kim, Yu-Wing Tai, Yunsu Bok, Hyeongwoo Kim, Inso Kweon

    “…In this paper, we propose an automatic method to extract a foreground object captured from multiple viewpoints. We consider the foreground object is within the…”
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    Conference Proceeding
  12. 12

    Automated checkerboard detection and indexing using circular boundaries by Bok, Yunsu, Ha, Hyowon, Kweon, In So

    Published in Pattern recognition letters (01-02-2016)
    “…•Low probability of missing true corners due to user-defined parameters of feature extraction.•Discarding outliers using characteristics of checkerboard…”
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    Journal Article
  13. 13

    Depth from a Light Field Image with Learning-Based Matching Costs by Jeon, Hae-Gon, Park, Jaesik, Choe, Gyeongmin, Park, Jinsun, Bok, Yunsu, Tai, Yu-Wing, Kweon, In So

    “…One of the core applications of light field imaging is depth estimation. To acquire a depth map, existing approaches apply a single photo-consistency measure…”
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    Journal Article
  14. 14

    Robust vision-based autonomous navigation against environment changes by Jungho Kim, Yunsu Bok, In So Kweon

    “…Recently, many vision-based navigation methods have been introduced as an intelligent robot application. However, many of these methods mainly focus on finding…”
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    Conference Proceeding
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    Extrinsic Calibration of 2-D Lidars Using Two Orthogonal Planes by Choi, Dong-Geol, Bok, Yunsu, Kim, Jun-Sik, Kweon, In So

    Published in IEEE transactions on robotics (01-02-2016)
    “…This paper describes a new methodology for estimating the relative pose between two 2-D lidars. Scanned points of 2-D lidars do not have enough feature…”
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    Journal Article
  17. 17

    Capturing Village-level Heritages with a Hand-held Camera-Laser Fusion Sensor by Bok, Yunsu, Jeong, Yekeun, Choi, Dong-Geol, Kweon, In So

    Published in International journal of computer vision (01-08-2011)
    “…Preserving a heritage as a digital archive is as important as preserving its physical structure. The digital preservation is essential for massive heritages…”
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    Journal Article
  18. 18

    Vision system and depth processing for DRC-HUBO by Inwook Shim, Seunghak Shin, Yunsu Bok, Kyungdon Joo, Dong-Geol Choi, Joon-Young Lee, Jaesik Park, Jun-Ho Oh, In So Kweon

    “…This paper presents a vision system and a depth processing algorithm for DRC-HUBO+, the winner of the DRC finals 2015. Our system is designed to reliably…”
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    Conference Proceeding
  19. 19

    Extrinsic calibration of 2D laser sensors by Dong-Geol Choi, Yunsu Bok, Jun-Sik Kim, In So Kweon

    “…This paper describes a new methodology for estimating a relative pose of two 2D laser sensors. Two dimensional laser scan points do not have enough feature…”
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    Conference Proceeding
  20. 20

    Generalized laser three-point algorithm for motion estimation of camera-laser fusion system by Yunsu Bok, Dong-Geol Choi, In So Kweon

    “…This paper presents a new structure-from-motion (SFM) technique called `generalized laser three-point' algorithm. It is designed to estimate the motion of the…”
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    Conference Proceeding