Development of Novel Change Detection Techniques for High Resolution Multitemporal Satellite Data

Abstract

Human beings and the manner by which they interact with the ecosystem are the major reasons for the rapid changes taking place in our environment. Tamil Nadu cannot be excluded as it has been consistently losing its natural beauty due to various human factors that include deforestation, urbanization and various forms of pollution. For the past years, the average rainfall has been showing a declining trend and people in different parts of the state have started to become desperate due to unseasonal rainfall patterns and the scarcity of water. It is becoming more and more common to see many colleges stop functioning and IT companies making their employees to work from home due to the scarcity of water in the summer season. newlineIn the Kanyakumari District of Tamil Nadu, one of its biggest and famous reservoirs is the Pechiparai dam, and many people depend on this reservoir to satisfy their basic needs. Due to the construction of National Highways and other commercial structures, trees are destroyed. What compounds the issue is that quite a lot of people are not aware of the importance of trees. On the one hand, the tremendous advances in technology is being witnessed in every sphere of human activity, but at the same time, the pristine and evergreen landscape, along with its beautiful rivers, ponds and lakes have been badly damaged, which is taking its toll on the ecosystem of Kanyakumari District. It is here that a proper change detection system may be used to create awareness among various strata of society regarding the changes happening to the ecosystem. newlineRemote sensing refers to the science of gaining information or data through an analysis about the land use and land cover changes about the earth s surface with the help of a device called sensor that does not have direct contact with the area under observation. Multitemporal images are a very crucial part of remote sensing, that helps in the observation of various temporal changes on the earth s surface.