Locating Salient Object Features

We present a method for locating salient object features. Salient features are those which have a low probability of being mis-classified with any other feature, and are therefore more easily found in a similar image containing an example of the object. The local image structure can be described by vectors extracted using a standard ‘feature extractor’ at a range of scales. We train statistical models for each feature, using vectors taken from a number of training examples. The feature models can then be used to find the probability of misclassifying a feature with all other features. Low probabilities indicate a salient feature. Results are presented showing that salient features can be relocated more reliably than features chosen using previous methods, including hand picked features.