Device for monitoring a building, structure, cliff, earth pile, etc. for movement using digital image processing and comparison equipment to monitor inherent characteristics of the object to detect any movement

摘要

Device comprises a digital imaging device (10), a controller (30, 38) for triggering recording of images at given intervals, memory storage (36) for the images and a processor (32) for processing and comparing successive images to detect displacement of any characteristic elements present on the images and an alarm mechanism (56) should such a movement be detected.