The task of object viewpoint estimation has been a challenge since the early days of computer vision. To estimate the viewpoint (or pose) of an object, people have mostly looked at object intrinsic features, such as shape or appearance. Surprisingly, informative features provided by other, extrinsic elements in the scene, have so far mostly been ignored. At the same time, contextual cues have b...

Viewpoint-dependent recognition performance of 3-D objects has often been taken as an indication of a viewpoint-dependent object representation. This viewpoint dependence is most often found using metrically manipulated objects. We aim to investigate whether instead these results can be explained by viewpoint and object property (e.g. curvature) information not being processed independently at ...

A viewpoint is a representational scheme on some collection of data objects, together with a mechanism for accessing this content. A multiple viewpoint system allows a searcher to pose queries in one viewpoint and then change to another viewpoint while retaining a sense of context, taking advantage of the improvement in retrieval results given by using di erent relevance judgements and di erent...