TY - CPAPER KW - Digital storage KW - Extraction KW - Intangible cultural heritages KW - K-means KW - Motion capturing KW - Musculoskeletal system KW - Serious games KW - Spatio-temporal dependencies KW - Storage complexity KW - Unsupervised clustering KW - Virtual reality KW - choreogrpahy summarization KW - clustering KW - k-means KW - key posture extraction KW - Motion capturing AU - Ioannis Rallis AU - Ioannis Georgoulas AU - Nikolaos Doulamis AU - Athanasios Voulodimos AU - Panagiotis Terzopoulos AB - Modelling and digitizing performing arts through motion capturing interfaces is an important aspect for the analysis, processing and documentation of intangible cultural heritage assets. However, existing modelling approaches may involve huge amounts of information which are difficult to process, store and analyze. To address these limitations, usually a skeleton describing the dancer motion is extracted. However, often the complexity still remains due to the high spatio-temporal dependencies of the detected skeleton joints. In this paper, an alternative approach is presented: choreography summarization. This means that a very small number of image frames are extracted to represent a choreography, thus significantly reducing the processing and storage complexity. In our approach the problem of choreography summarization is treated as an unsupervised clustering approach. Evaluation indices are introduced for monitoring the summarization performance. Experimental results on real-life dancing performances verifies the capability of the proposed method to capture the main patterns of a choreography with a very small number of trajectory points. C2 - Int. Conf. Virtual Worlds Games Serious Appl., VS-Games - Proc. DO - 10.1109/VS-GAMES.2017.8056576 N1 - Journal Abbreviation: Int. Conf. Virtual Worlds Games Serious Appl., VS-Games - Proc. N2 - Modelling and digitizing performing arts through motion capturing interfaces is an important aspect for the analysis, processing and documentation of intangible cultural heritage assets. However, existing modelling approaches may involve huge amounts of information which are difficult to process, store and analyze. To address these limitations, usually a skeleton describing the dancer motion is extracted. However, often the complexity still remains due to the high spatio-temporal dependencies of the detected skeleton joints. In this paper, an alternative approach is presented: choreography summarization. This means that a very small number of image frames are extracted to represent a choreography, thus significantly reducing the processing and storage complexity. In our approach the problem of choreography summarization is treated as an unsupervised clustering approach. Evaluation indices are introduced for monitoring the summarization performance. Experimental results on real-life dancing performances verifies the capability of the proposed method to capture the main patterns of a choreography with a very small number of trajectory points. PB - Institute of Electrical and Electronics Engineers Inc. SN - 9781509058129 (ISBN) SP - 94 EP - 101 TI - Extraction of key postures from 3D human motion data for choreography summarization UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034659414&doi=10.1109%2fVS-GAMES.2017.8056576&partnerID=40&md5=3259f814481d16dfa64f01e91ed52301 ER -