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提出了一種基于自適應模板半徑的形狀上下文描述子描述圖像輪廓特征的手勢動作模式識別方法,并探討了這種方法在基于視覺的漢語字母手勢識別中的應用.首先,在計算手勢輪廓各點的形狀上下文時,提出了一種距離直方圖法求取自適應的模板半徑的方法,并以χ2統(tǒng)計量計算各輪廓點之間的匹配距離,再以改進Hausdorff距離計算各手勢輪廓間的匹配距離,最后用最近鄰法進行分類識別.對來自50個實驗對象的手勢圖像分類識別的實驗結果表明,該方法對30個漢語字母手勢圖像的正確識別率達到了74.3%,明顯高于基于不變矩及傅里葉描述子特征提取方法的識別結果.

1. Wu Ying,Huang Thomas S.Human hand modeling,analysisand animation in the context of HCI[C].Proceedings of International Conference on Image Processing,Kobe,1999:6-10.
2. Zhou Hanning,Lin DJ,Huang TS.Static Hand Gesture Recognition based on Local Orientation Histogram Feature Distribution Model[J].Proceed-ings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Worksh-ops:1063-6919.
3. Starner T,Weaver J,Pentland A.Real-Time American Sign Language Recognition Using Desk and Wearable Computer Based Video[J].IEEE Transactions on Patt-ern Analysis and Machine Intelligence,1998,20(12):1371-1375.
4. 任海兵,徐光,林學.基于特征線條的手勢識別[J].軟件學報,2002,13(5):987-993.
5. 朱繼玉,王西穎,等.基于結構分析的手勢識別[J].計算機學報,2006,29(12):2130-2137.
6. Hyeon-Kyu Lee,Kim JH.An HMM-based threshold model approach for gesture recognition[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,1999,21(10):861-972.
7. Serge Belongie,Jitendra Malik,Jan Puzicha.Shape Matching and Object Recognition Using Shape Con-texts[J].IEEE transactions on Pattern Analysis and Machine Inteligence,2002,24(24):509-522.
8. 田曉亮,劉忠.基于形狀相似度的水下目標識別算法[J].聲學技術,2007,26(3):493-497.
9. 陳實,馬天駿,等.基于形狀上下文描述子的步態(tài)識別[J].模式識別與人工智能,2007,20(6):794-799.
10. Dubuission MP,Jain AK.A Modified Hausdorff Distance for Object Matching[J].Proc of the 12th International Conference on Pattern Recognition,1994,I:566-568.