NDLI: Recognition of free gymnastics using human body feature points from silhouette and skin region

Content Provider	IEEE Xplore Digital Library
Author	Taeho Kim Kang-Hyun Jo Sung-Eun Kim Inho Lee
Copyright Year	2002
Description	Author affiliation: Intelligent Syst. Lab., Ulsan Univ., South Korea (Taeho Kim; Kang-Hyun Jo)
Abstract	Many motion recognition algorithms use information that is acquired under forced-conditions such as adhered sensors on body joints or the specialized place where the motion analysis equipment is previously set for extracting and tracking features of human motion. This paper presents a recognition algorithm of human motion in an outdoor environment without any sensors attached on a human body. The process initiates to extract a silhouette as a target from the difference image between the background and the object where a human is in sequence. Skin regions are segmented from this silhouette. A head is determined using the principal axis of a torso that is created by multiple morphological process with respect to the silhouette. The feature points (16 pts) on a body were adopted for tracking human motion in this paper. The points are defined on skin regions and estimated by searching to follow the boundary of the silhouette. The cubic known model is used for calibrating the 3-dimensional space. A complete set is presented for recognizing human motion. This is an analysis method to check the state of feature points on input data while the database has information of feature points for moving objects. Therefore it is suitable to apply a prescript and limited motion. A state transition diagram (STD) is used to measure the coincidence between the input image and standard motions which are known to complete a sequence in the database. Free gymnastics is used as a good example of a complete set and shown as a good result in the experiments.
Starting Page	150
Ending Page	154
File Size	275966
Page Count	5
File Format	PDF
ISBN	0780374274
DOI	10.1109/KORUS.2002.1027984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-24
Publisher Place	Russia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humans Skin Motion analysis Image databases Spatial databases Sensor phenomena and characterization Joints Data mining Target tracking Feature extraction
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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