Object detection system

摘要

An airborne mine countermeasure system includes a processor coupled to a memory having stored therein software instructions that, when executed by the processor, cause the processor to perform a series of image processing operations. The operations include obtaining input image data from an external image sensor, and extracting a sequence of 2-D slices from the input image data. The operations also include performing a 3-D connected region analysis on the sequence of 2-D slices, and extracting 3-D invariant features in the image data. The operations further include performing coarse filtering, performing fine recognition and outputting an image processing result having an indication of the presence of any mines within the input image data.

主权项

1. An object detection system comprising:
an image sensor configured to obtain input image data of a body of water; a processor for executing modules; a memory containing the modules, the executed modules including: an image slice extraction module configured to extract a sequence of 2-D slices from the input image data; a 3-D analysis module configured to perform a 3-D connected region analysis on the sequence of 2-D slices; an invariant feature computation module configured to compute image 3-D invariant features in the image data; an image filter module configured to perform coarse filtering based on the image 3-D invariant features, the coarse filtering including: comparing image 3-D invariant features in the image data to a data store of trained 3-D invariant features associated with known objects, providing a list of found objects in the image data based on the data store, and for each of the found objects, providing an indication of how close features of the found object match features in the data store; and an image recognition module configured to perform fine recognition to identify a known object from the data store within the input image data.