title: Real-time human pose estimation and gesture recognition from depth images using superpixels and SVM classifier.
abstract: In this paper, we present human pose estimation and gesture recognition algorithms that use only depth information. The proposed methods are designed to be operated with only a CPU (central processing unit), so that the algorithm can be operated on a low-cost platform, such as an embedded board. The human pose estimation method is based on an SVM (support vector machine) and superpixels without prior knowledge of a human body model. In the gesture recognition method, gestures are recognized from the pose information of a human body. To recognize gestures regardless of motion speed, the proposed method utilizes the keyframe extraction method. Gesture recognition is performed by comparing input keyframes with keyframes in registered gestures. The gesture yielding the smallest comparison error is chosen as a recognized gesture. To prevent recognition of gestures when a person performs a gesture that is not registered, we derive the maximum allowable comparison errors by comparing each registered gesture with the other gestures. We evaluated our method using a dataset that we generated. The experiment results show that our method performs fairly well and is applicable in real environments.
authors.affiliation: Urban Robotics Laboratory (URL), Dept. Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-338, Korea. sskhk05@kaist.ac.kr.
authors.forename: Hanguen
authors.initials: H
authors.lastname: Kim
authors.affiliation: Urban Robotics Laboratory (URL), Dept. Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-338, Korea. lsw618@gmail.com.
authors.forename: Sangwon
authors.initials: S
authors.lastname: Lee
authors.affiliation: Image & Video Research Group, Samsung S1 Cooperation, 168 S1 Building, Soonhwa-dong,Joong-gu, Seoul 100-773, Korea. dslee.lee@samsung.com.
authors.forename: Dongsung
authors.initials: D
authors.lastname: Lee
authors.affiliation: Image & Video Research Group, Samsung S1 Cooperation, 168 S1 Building, Soonhwa-dong,Joong-gu, Seoul 100-773, Korea. soonmin.choi@samsung.com.
authors.forename: Soonmin
authors.initials: S
authors.lastname: Choi
authors.affiliation: Image & Video Research Group, Samsung S1 Cooperation, 168 S1 Building, Soonhwa-dong,Joong-gu, Seoul 100-773, Korea. jinsun.ju@samsung.com.
authors.forename: Jinsun
authors.initials: J
authors.lastname: Ju
authors.affiliation: Urban Robotics Laboratory (URL), Dept. Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-338, Korea. hmyung@kaist.ac.kr.
authors.forename: Hyun
authors.initials: H
authors.lastname: Myung
mesh_terms: D005260:Female; D005868:Gestures; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008297:Male; D010363:Pattern Recognition, Automated / Q000379:methods*; D011187:Posture / Q000502:physiology*; D060388:Support Vector Machine
keywords: depth information; gesture recognition; human pose estimation; low-cost platform