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您的检索式：作者名="Hwanik Chung"
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| 1 | Efficient model building in active appearance model for rotated face显示文摘This paper proposes the efficient model building in active appearance model(AAM) for the rotated face.Finding an exact region of the face is generally difficult due to different shapes and viewpoints.Unlike many papers about the fitting method of AAM,this paper treats how images are chosen for fitting of the rotated face in modelling process.To solve this problem,databases of facial rotation and expression are selected and models are built using Procrustes method and principal component analysis(PCA).These models are applied in fitting methods like basic AAM fitting,inverse compositional alignment(ICA),project-out ICA,normalization ICA,robust normalization inverse compositional algorithm(RNIC)and efficient robust normalization algorithm(ERN).RNIC and ERN can fit the rotated face in images efficiently.The efficiency of model building is checked using sequence images made by ourselves. | Jaehyun So Sanghun Han Youngtak Kim Hwanik Chung Youngjoon Han | 2013 | Journal of Measurement Science and Instrumentation2013，4，4： | 0 |
| 2 | Obstacle detection using multi-sensor fusion显示文摘This paper presents an obstacle detection approach for blind pedestrians by fusing data from camera and laser sensor.For purely vision-based blind guidance system,it is difficult to discriminate low-level obstacles with cluttered road surface,while for purely laser-based system,it usually requires to scan the forward environment,which turns out to be very inconvenient.To overcome these inherent problems when using camera and laser sensor independently,a sensor-fusion model is proposed to associate range data from laser domain with edges from image domain.Based on this fusion model,obstacle's position,size and shape can be estimated.The proposed method is tested in several indoor scenes,and its efficiency is confirmed. | Qing Lin Youngjoon Han Namki Lee Hwanik Chung | 2013 | Journal of Measurement Science and Instrumentation2013，4，3： | 0 |
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