Robotics and Computer Vision Lab

Publications

Extra Form
저 자 Byungtae Ahn, Eung-Hee Kim, Jin-Hun Sohn, In So Kweon
학 회 Journal of Korea Robotics Society
논문일시(Year) 2013
논문일시(Month) 12
Facial feature extraction and tracking are essential steps in human-robot-interaction (HRI) field such as face recognition, gaze estimation, and emotion recognition. Active shape model (ASM) is one of the successful generative models that extract the facial features. However, applying only ASM is not adequate for modeling a face in actual applications, because positions of facial features are unstably extracted due to limitation of the number of iterations in the ASM fitting algorithm. The unaccurate positions of facial features decrease the performance of the emotion recognition.
In this paper, we propose real-time facial feature extraction and tracking framework using ASM and LK optical flow for emotion recognition. LK optical flow is desirable to estimate time-varying geometric parameters in sequential face images. In addition, we introduce a straightforward method to avoid tracking failure caused by partial occlusions that can be a serious problem for tracking based algorithm. Emotion recognition experiments with k-NN and SVM classifier shows over 95% classification accuracy for three emotions: "joy", "anger", and "disgust".

List of Articles
403. Geometric Calibration of Micro-Lens-Based Light-Field Cameras using Line Features
Yunsu Bok, Hae-Gon Jeon, In So Kweon
European Conference on Computer Vision (ECCV) 2014 / 09
402. Extrinsic Calibration of 2D Laser Sensors
Dong-Geol Choi, Yunsu Bok, Jun-sik Kim, In So Kweon
International Conference on Robotics & Automation (ICRA) 2014 / 05
401. Extrinsic Calibration of Non-overlapping Camera-Laser System using Structured Environment
Yunsu Bok, Dong-Geol Choi, Pascal Vasseur, In So Kweon
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2014 / 09
400. 깊은 신경망을 통한 사용자 머리 자세 추정
Byungtae Ahn, In So Kweon
제9회 한국로봇종합학술대회 2014 / 06
399. GMM-based Saliency Aggregation for Calibration-free Gaze Estimation
Jinsoo Choi, Byungtae Ahn, Jaesik Park, In So Kweon
International Conference on Image Processing (ICIP) 2014 / 10
398. Cost-Aware Depth Map Estimation for Lytro Camera
Min Jung Kim, Tae-Hyun Oh, In So Kweon
International Conference on Image Processing (ICIP) 2014 / 10
397. Balanced Optical Flow Refinement by Bidirectional Constraint
Jongwon Choi, Hyeongwoo Kim, Tae-Hyun Oh, In So Kweon
International Conference on Image Processing (ICIP) 2014 / 10
396. Auto-adjusting Camera Exposure for Outdoor Robotics using Gradient Information
Inwook Shim, Joon-Young Lee, In So Kweon
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2014 / 09
395. Rao-Blackwellized Particle Filtering with Gaussian Mixture Models for Robust Visual Tracking
Jungho Kim, Zhe Lin, In So Kweon
Computer Vision and Image Understanding 2014 / 04
394. Color Transfer using Probabilistic Moving Least Squares
Youngbae Hwang, Joon-Young Lee, In So Kweon, Seon Joo Kim
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2014 / 06
393. Exploiting Shading Cues in Kinect IR Images for Geometry Refinement
Gyeongmin Choe, Jaesik Park, Yu-Wing Tai, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2014 / 06
392. Calibrating a non-isotropic near point light source using a plane
Jaesik Park, Sudipta N. Sinha, Yasuyuki Matsushita, Yu-Wing Tai, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2014 / 06
391. Rain/Snow Removal via Low-rank and Sparse Optimization
Rockhun Do, Tae-Hyun Oh, In So Kweon
Book Chapter of Digital Signal Processing for In-Vehicle Systems and Safety 2014 / 02
390. 구조적인 환경에서 3차원 직선을 이용한 평면 복원
Kyungdon Joo, Tae-Hyun Oh, Hyeongwoo Kim, In So Kweon
제 26 회 영상처리 및 이해에 관한 워크샵 (IPIU 2014) 2014 / 02
389. 강인한 보행자 검출을 위한 계층적 분류기 모델
Soonmin Hwang, Tae-Hyun Oh, In So Kweon
제 26회 영상처리 및 이해에 관한 워크샵 (IPIU 2014) 2014 / 02
388. 도로 상의 특징점을 이용한 단일 카메라 기반의 차량 자세 추정
Jongwon Choi, Tae-Hyun Oh, In So Kweon
제 26 회 영상처리 및 이해에 관한 워크샵 (IPIU 2014) 2014 / 02
387. 다중 정보 융합 비용 체적을 이용한 라이트 필드 카메라에서의 깊이지도 추정
Min Jung Kim, Tae-Hyun Oh, In So Kweon
제 26 회 영상처리 및 이해에 관한 워크샵 (IPIU 2014) 2014 / 02
386. PRISM: A System for Weighted Multi-Color Browsing of Fashion Products
Donggeun Yoo, Kyunghyun Paeng, Sunggyun Park, Jungin Lee, Seungwook Paek, Sung-Eui Yoon, In So Kweon
International World Wide Web Conference (WWW) Companion 2014 / 04
385. Noise aware depth denoising for a time-of-flight camera
Jiyoung Jung, Joon-Young Lee, In So Kweon
20th Korea-Japan Joint Workshop on Frontiers of Computer Vision 2014 / 02
384. P-RIF: Perceptually Robust Invariant Feature
Sungho Kim, In So Kweon
IPIU 2013 / 02
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