Using model-driven feedback in neural network object recognition

摘要

Abstract: In this paper we deal with the problem of edge extraction for the purpose of matching to a known model or set of models. We describe an approach to using geometric model based information within a feedback system, without the requirement for prior pose estimation by a matching process. We call this process model driven feedback (MDF). The feedback system uses a chord based transform of the image edges that is invariant either to translation or both translation and rotation, depending on its form. By representing both the data and model information using a geometrically invariant transform, and iteratively minimizing a function of the differences between the model and data transforms, the system is able to eliminate background edges while retaining object edges that are similar in shape to the model.!14