Robotics and Computer Vision Lab

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저 자 Sungho Kim, In So Kweon
학 회 Computer Vision and Image Understanding (CVIU)
논문일시(Year) 2007
논문일시(Month) 03
105(3):167-187

In this paper, we present a new graph-based frame work for collaborative place, object, and part recognition in indoor environments.
We consider a scene to be an undirected graphical model composed of a place node, object nodes, and part nodes with undirected links.
Our key contribution is the introduction of collaborative place and object recognition (we call it as the hierarchical context in this paper) instead of object only or causal relation of place to objects. We unify the hierarchical context and the well-known spatial context into a complete hierarchical graphical model (HGM). In the HGM, object and part nodes contain labels and related pose information instead of only a label for robust inference of objects. The most difficult problems of the HGM are learning and inferring variable graph structures.
We learn the HGM in a piecewise manner instead of by joint graph learning for tractability. Since the inference includes variable structure estimation with marginal distribution of each node, we approximate the pseudo-likelihood of marginal distribution using multimodal sequential Monte Carlo with weights updated by belief propagation. Data-driven multimodal hypothesis and context-based pruning provide the correct inference. For successful recognition, issues related to 3D object recognition are also considered and several state-of-the-art methods are incorporated. The proposed system greatly reduces false alarms using the spatial and hierarchical contexts.
We demonstrate the feasibility of the HGM-based collaborative place, object, and part recognition in actual large-scale environments for guidance applications (12 places, 112 3D objects).

List of Articles
170. Rectangle Extraction in Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
(OMNIVIS ‘07) in conjunction with ICCV’07 2007 / 10
169. Robust motion estimation and statistical change detection in image sequences under time-varying illumination
Youngsu Moon
KAIST 2000 / 08
168. 3D structure recovery and motion segmentation using uncalibrated cameras
Jongeun Ha
KAIST 2000 / 02
167. Optimization-based approaches in computer vision
Dongjoong Kang
KAIST 1999 / 02
166. A chromatic color constancy model for three dimensional objects based on human visual and illuminant perception
Changyeong Kim
KAIST 1998 / 08
165. UAV Attitude Estimation by Combining Horizon-based and Homography-based Approaches for Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
6th IFAC Symposium on Intelligent Autonomous Vehicles 2007 / 09
164. Indexing based object recognition using projective invariant
Kyoungsig Roh
KAIST 1998 / 02
163. Kalman filter based visual tracking using probabilistic motion segmentation and the first-order differential invariants
Joonwoong Lee
KAIST 1997 / 02
162. 이동로봇을 위한 전방향 시각센서와 응용
Jungho Kim, Chaehoon Park, Jean-Charles Bazin, Gijeong Jang, In So Kweon
로봇공학회 논문지 2007 / 01
161. CALOS : 주행계 추정을 위한 카메라와 레이저 융합
Yunsu Bok, Youngbae Hwang, In So Kweon
로봇공학회 논문지 2006 / 09
160. 비디오에서 양방향 문맥 정보를 이용한 상호협력적인 위치 및 물체 인식
Sungho Kim, In So Kweon
로봇공학회 논문지 2006 / 09
159. 지능형 이동 로봇에서 강인 물체 인식을 위한 영상 문맥 정보 활용 기법
Sungho Kim, Jun-sik Kim, In So Kweon
로봇공학회 논문지 2006 / 09
158. 단일 및 다중 컬러 영상에서 이색성 선 공간을 이용한 조명 색도 추정
Yoojin Choi, Kukjin Yoon, In So Kweon
정보과학회논문지:소프트웨어 및 응용 2006 / 01
157. Modeling and target classification using multiple reflections of sonar
Wangheon Lee, In So Kweon
Journal of Control, Automation, and Systems Engineering (ICASE) 2004 / 09
156. 칼라 기반의 특징점 추출과 대응점을 이용한 움직임 추정 및 지도 작성
Hyoseok Hwang, In So Kweon
20th Workshop on Image Processing and Image Understanding (IPIU) 2008 / 02
155. 에피폴 기반의 로봇 자율 주행
Jungho Kim, In So Kweon
제 2회 한국지능로봇 하계종합 학술대회 2007 / 06
154. 영상 매칭 및 자세 추정을 이용한 무인 차량의 위치 추정
Yunsu Bok, Youngbae Hwang, In So Kweon
한국군사과학기술학회 종합학술대회 2007 / 08
153. 산악 지형에서 무인 이동 비행기의 위치 추정 알고리즘
Jihwan Woo, Kil-Ho Son, In So Kweon, Kim Gwan Sung
19th Workshop on Image Processing and Image Understanding (IPIU) 2007 / 02
152. Automatic Modeling of Urban Area from the Satellite Image
Kil-Ho Son, Jihwan Woo, In So Kweon
19th Workshop on Image Processing and Image Understanding (IPIU) 2007 / 02
151. Motion Estimamtion of Non-Overlapping Cameras
Hyeongwoo Kim, Jun-sik Kim, In So Kweon
19th Workshop on Image Processing and Image Understanding (IPIU) 2007 / 02
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