  We propose a novel service framework to detect changes in crowdsourced
images. We use a service-oriented approach to model and represent crowdsourced
images as image services. Non-functional attributes of an image service are
leveraged to detect changes in an image. The changes are reported in form of a
version tree. The version tree is constructed in a way that it reflects the
extent of changes introduced in different versions. Afterwards, we find
semantic differences in between different versions to determine the extent of
changes introduced in a specific version. Preliminary experimental results
demonstrate the effectiveness of the proposed approach.
