Developing a spatial searching tool to enhance the search capabilities of large spatial repositories for Geographical Information
System (GIS) update has attracted more and more attention. Typically, objects to be detected are represented by many local
features or local parts. Testing images are processed by extracting local features which are then matched with the object’s
model image. Most existing work that uses local features assumes that each of the local features is independent to each other.
However, in many cases, this is not true. In this paper, a method of applying the local cooccurring patterns to disclose the
cooccurring relationships between local features for object detection is presented. Features including colour features and
edge-based shape features of the interested object are collected. To reveal the cooccurring patterns among multiple local
features, a colour cooccurrence histogram is constructed and used to search objects of interest from target images. The method
is demonstrated in detecting swimming pools from aerial images. Our experimental results show the feasibility of using this
method for effectively reducing the labour work in finding man-made objects of interest from aerial images.
Keywords Local cooccurring patterns - colour cooccurrence histogram - swimming pool detection