Journal Article10.1142/S0218001402001642
Recognizing partially occluded objects using markov model
Chau-Jin Chan,Shu-Yuan Chen +1 more
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TL;DR: The effectiveness and practicability of the proposed approach have been proven by various experimental results and the solution of the method is useful for depth-search applications such as inspection of printed circuit board with multiple layers, underwater diving for searching objects, underground drilling for exploring mine, etc.
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Abstract: A novel method to recognize occluded objects using Markov model is proposed in this paper. In addition to Markov model having a high tolerance to noise, spatial distribution of features can be incorporated into Markov model in a natural and elegant way. Thus, high recognition accuracy can be achieved by the proposed method. More specifically, for each occluded object in the scene image, its translation, rotation and scale parameters can all be determined by our method even when it may have transformation parameters different from others or it may be duplicated in the scene image with transformation parameters different from each other. Moreover, the recognition process can be performed step by step to find out all of the objects in the scene image according to the confidence measure. Finally, the recognition process can be terminated automatically without knowing the number of objects included in the scene image since hypothesis verification and termination test are performed in our method. Actually, the solution of our method is useful for depth-search applications such as inspection of printed circuit board with multiple layers, underwater diving for searching objects, underground drilling for exploring mine, etc. The proposed method has been applied on two types of databases: puzzle and tool. The effectiveness and practicability of the proposed approach have been proven by various experimental results.
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Citations
Image matching using Gradient Orientation Selective Cross Correlation
Hu Zhu,Lizhen Deng +1 more
TL;DR: In the new approach, a gradient orientation selectivity strategy is proposed to exclude the wrong points from correlation, especially for partial occlusion and some other ill-conditions.
10
Recognition of partially occluded objects using perfect hashing: an efficient and robust approach
R. Dinesh,Devanur S. Guru +1 more
- 09 May 2005
TL;DR: The proposed method uses corner points and their spatial relationship perceived through the application of triangular spatial relationship in Guru and Nagabhushan by considering three consecutive corner points at a time to create a model object-base using the technique of perfect hashing.
4
•Proceedings Article
Estimation of camera 3D-position to minimize occlusions
Pablo Gil,Fernando Torres,Óscar Reinoso García +2 more
- 01 Jan 2007
TL;DR: This work was funded by the Spanish MCYT project “Diseno, implementacion y experimentacion de escenarios de manipulacion inteligentes para aplicaciones de ensamblado y desensamblados automatico (DPI2005- 06222)”.
Using moment invariants to analyze cluster shapes and hypothesize potential causes
TL;DR: This research develops and presents a computer program that uses the information about the shape of the cluster to evaluate the hypotheses about potential causes and demonstrates the viability of this approach to automated cluster analysis.
2
Concept of triangular spatial relationship and b-tree for partially occluded object recognition: an efficient and robust approach
R. Dinesh,Devanur S. Guru +1 more
TL;DR: Experiments conducted on different sets of objects revealed the superiority of the proposed method over others and also its consistency with human perception.
2
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