Keyframe extraction is a widely applied remedy for issues faced with 3D motion capture -based computer animation. In this paper, we propose a novel keyframe extraction method, where the motion is represented in LRI coordinates and the dimensions covering 95% of the data are automatically selected using PCA. Then, by K-means classification, the summarized data is clustered and a keyframe is extracted from each cluster based on cosine similarity. To validate the method, an online user study was conducted. The results show that 45% of the participants preferred the keyframes extracted using the proposed method, outperforming the alternative by 6%.

ÖZSporla ilişkili maksillofasiyal travmalar, nazal fraktürler ve aurikula hematomu gibi durumlar görülme sıklığı sebebiyle KBB kliniğinin hasta populasyonunda önemli bir yer tutmaktadır. Bu yazının amacı spor ilişkili KBB yaralanmalarının sıklığını, spor dallarına göre sık görülen travmaları, tedavi gerektiren durumları, tedavide uygulanan yöntemleri ve bu yaralanmalardan kaçınmak için alınması gereken önlemleri gözden geçirmektir. Anahtar Sözcükler: Maksillofasiyal travma, nazal fraktür, spor yaralanması, cerrahi yaklaşım. Ear--Nose--Throat Injuries In Sports ABSTRACTSports--related maxillofacial traumas, nasal fractures and auricular hematomas situations like have important role due to encounter frequency in ENT clinic's patient population. The aim of article is defining the incidence of sports--related injuries , mostly seen traumas according to the sport types, conditions that needs treatment , different treatment approaches and interventions that should be done for prevention of these injuries.

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