Yudi is presently a lecturer staff at Faculty of Forestry, Bogor Agricultural University (IPB) and researcher at Center for Environmental Research, IPB. He is a member of WG-LISAT IPB, the International Society of Photogrammetry and Remote Sensing (ISPRS) and Japan Society of Photogrammetry and Remote Sensing (JSPRS). His main research is in the area of remote-sensing for forestry, land use science, image processing and ecological modelling in a regional scale. He has been working as a remote sensing specialist on land change detection at UNDP-REDD Indonesia. Yudi has developed a novel method for the change detection, and it should be applicable in the development of a near-real time deforestation detection system for Indonesia. He had been a postdoctoral fellow at Nihon University, Japan collaborated in a project entitled Spatio-temporal variation of carbon budget in Arctic pedosphere concerned with the prediction of global climate change, which was funded by the Environment Research and Technology Development Fund (ERTDF), Ministry of Environment, Japan.