Stel Component Analysis: Joint Segmentation, Modeling and Recognition of Objects Classes
Models that captures the common structure of an object class have appeared few years ago in the literature (Jojic and Caspi in Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), pp. 212219, 2004; Winn and Jojic in Proceedings of International Conference on Computer Vision (ICCV), pp. 756763, 2005); they are often referred as stel models. Their main characteristic is to segment objects in clear, often semantic, parts as a consequence of the modeling constraint which forces the regions belonging to a single segment to have a tight distribution over local measurements, such as color or texture. This self-similarity within a region in a single image is typical of many meaningful image parts, even when across different images of similar objects, the corresponding parts may not have similar local measurements. Moreover, the segmentation itself is expected to be consistent within a class, although still flexible. These models have been applied mostly to segmentation scenarios.
segmentation recognition object class modeling statistical learning bag of words and beyond