Object recognition or detection based on verification tests

摘要

Object recognition systems, methods, and devices are provided. Candidate objects may be detected. The candidate objects may be verified as depicting objects of a predetermined object type with verification tests that are based on comparisons with reference images known to include such objects and/or based on context of the candidate objects. The object recognition system may identify images in a social networking service that may include objects of a predetermined type.

主权项

1. An object recognition system comprising:
an object detection module configured to apply a cascade classifier to a source image, wherein application of the cascade classifier results in identification of candidate objects for a predetermined object type; a plurality of verification tests, each of the verification tests configured to generate a plurality of difference values for a candidate object identified by the object detection module and a corresponding reference image, wherein the corresponding reference image depicts an object of the predetermined object type, and wherein each one of the difference values represents an indication of a difference between a characteristic of the candidate object and a characteristic of the corresponding reference image; a scoring module configured to determine, for each of the candidate objects, a belief score for the candidate object based on the difference values for the candidate object, wherein the belief score indicates a likelihood that the candidate object is of the predetermined object type; and a verification module configured to identify a set of detected objects based on the candidate objects and the belief scores for the candidate objects.