Object-centered feature selection for weakly-unsupervised object categorisation

We describe a novel approach of spatio-temporal mapping of local image features, to reduce the number of input data for further object categorization. The main focus of our work is the selection of good features to learn, by achieving a precise mapping of image features either related to static objects or to background. This can be done by initial camera motion estimation, subsequent structure estimation and final clustering of the 3D points. Experimental results show that our method achieves a significant reduction of processed image features, which yields a better performance in subsequent learning modules.

[1]  Pietro Perona,et al.  Object class recognition by unsupervised scale-invariant learning , 2003, 2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings..

[2]  Luc Van Gool,et al.  Affine/ Photometric Invariants for Planar Intensity Patterns , 1996, ECCV.

[3]  Manmohan Krishna Chandraker,et al.  Real-Time Camera Pose in a Room , 2003, ICVS.

[4]  David Nistér,et al.  An efficient solution to the five-point relative pose problem , 2003, 2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings..

[5]  J. MacQueen Some methods for classification and analysis of multivariate observations , 1967 .

[6]  Peter Auer,et al.  Weak Hypotheses and Boosting for Generic Object Detection and Recognition , 2004, ECCV.

[7]  Gregory D. Hager,et al.  Fast and Globally Convergent Pose Estimation from Video Images , 2000, IEEE Trans. Pattern Anal. Mach. Intell..

[8]  Morton Nadler,et al.  Pattern recognition engineering , 1993 .

[9]  Tyrone L. Vincent,et al.  Three-Dimensional Motion and Structure Estimation Using Inertial Sensors and Computer Vision for Augmented Reality , 2002, Presence: Teleoperators & Virtual Environments.