Robotics and Computer Vision Lab

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저 자 Yekeun Jeong, David Nister, Drew Steedly, Richard Szeliski, In So Kweon
학 회 IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)
논문일시(Year) 2012
논문일시(Month) 08
vol. 34, no.8, pp. 1605-1617

In this paper, we present results and experiments with several methods for bundle adjustment, producing the fastest bundle adjuster ever published in terms of computation and convergence. From a computational perspective, the fastest methods naturally handle the block-sparse pattern that arises in a reduced camera system. Adapting to the naturally arising block-sparsity allows the use of BLAS3, efficient memory handling, fast variable ordering, and customized sparse solving all simultaneously. We present two methods; one uses exact minimum degree ordering and block-based LDL solving, and the other uses block-based preconditioned conjugate gradients. Both methods are performed on the reduced camera system. We show experimentally that the adaptation to the natural block sparsity allows both of these methods to perform better than previous methods. Further improvements in convergence speed are achieved by the novel use of embedded point iterations. Embedded point iterations take place inside each camera update step yielding a greater cost decrease from each camera update step and, consequently, a lower minimum. This is especially true for points projecting far out on the flatter region of the robustifier. Intensive analyses from various angles demonstrate the improved performance of the presented bundler.

List of Articles
365. P-RIF 틀징량을 이용한 물체 인식 기법 연구
Sungho Kim, Yukyung Choi, In So Kweon
한국로봇종합학술대회 2013 / 05
364. 온라인 토폴로지기반 위치인식을 위한 빠른 군집화 방법론
Yukyung Choi, Chaehoon Park, Donggeun Yoo, Soonmin Hwang, Sungho Kim, In So Kweon
한국로봇종합학술대회 2013 / 05
363. 온라인 어휘 트리
Chaehoon Park, Yukyung Choi, Donggeun Yoo, Sungho Kim, In So Kweon
한국로봇종합학술대회 2013 / 05
362. 밝기 및 윤곽선 기반 코너 검출 기법
Sungho Kim, Chaehoon Park, Yukyung Choi, In So Kweon
한국로봇공학회 하계종합 학술대회 2012 / 06
361. Generalized Laser Three-Point Algorithm for Motion Estimation of Camera-Laser Fusion System
Yunsu Bok, Dong-Geol Choi, In So Kweon
IEEE International Conference on Robotics and Automation (ICRA) 2013 / 05
360. Relative Pose Estimation for an Integrated UGV-UAV Robot System
Yongseop Jeong, In So Kweon
The 6th International Conference on Intelligent Robotics and Applications(ICIRA) 2013 / 09
359. 동적 필터링 알고리즘을 이용한 구조광 3차원 센서의 정확도 개선
Hyowon Ha, In So Kweon
대한전자공학회 하계종합학술대회 2013 / 07
358. 키넥트 깊이 정확도 개선을 위한 적외선 패턴 영상의 스테레오 정합
Gyeongmin Choe, Jaesik Park, Hyowon Ha, In So Kweon
2013 한국멀티미디어학회 춘계학술발표대회 2013 / 05
357. L1-based Photometric Stereo via Augmented Lagrange Multiplier Method
Kyungdon Joo, Tae-Hyun Oh, In So Kweon
The 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) 2013 / 10
356. Patch-based Robust L1 Tracker to Dynamic Appearance Change
Wonjin Kim, Tae-Hyun Oh, Kyungdon Joo, In So Kweon
The 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) 2013 / 10
355. 패치 기반 희소성 표현 모델을 이용한 물체 추적 방법
Tae-Hyun Oh, Wonjin Kim, Kyungdon Joo, In So Kweon
대한전자공학회 하계종합학술대회 2013 / 07
354. Hierarchical 3D Line Restoration based on Angular Proximity in Structured Environments
Kyungdon Joo, Tae-Hyun Oh, Hyeongwoo Kim, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2013 / 09
353. High Dynamic Range Imaging by a Rank-1 Constraint
Tae-Hyun Oh, Joon-Young Lee, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2013 / 09
352. Rain/Snow Removal via Low-rank and Sparse Optimization
Rockhun Do, Tae-Hyun Oh, In So Kweon
The 6th Biennial Workshop on DSP for In-Vehicle Systems 2013 / 10
351. 효과적인 감시를 위한 주행 로봇과 비행 로봇의 협동 시스템
Yongseop Jeong, In So Kweon
2013 제28회 ICROS 학술대회 2013 / 05
350. OBJECT DETECTION USING HIERARCHICAL GRAPH-BASED SEGMENTATION
Jungho Kim, Byeongho Choi, In So Kweon
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2013 / 05
349. A Novel Low-Rank Constraint Method with the Sparsity Model for Moving Object Analysis
Tae-Hyun Oh
KAIST 2012 / 08
348. 랭크 최소화에 의한 카메라 복사 보정
Joon-Young Lee, In So Kweon
제 25 회 영상처리 및 이해에 관한 워크샵 (IPIU 2013) 2013 / 02
347. 다시점 영상기반 3차원 움직임 추정기법
Jaesik Park, Tae-Hyun Oh, Jiyoung Jung, In So Kweon
제 25 회 영상처리 및 이해에 관한 워크샵 (IPIU 2013) 2013 / 02
346. 컬러 영상의 홀로그램 및 워터마크 제거 기법
Jaesik Park, Yu-Wing Tai, In So Kweon
제 25 회 영상처리 및 이해에 관한 워크샵 (IPIU 2013) 2013 / 02
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