现勘图像数据库检索技术实例探讨

Content—based image retrieva1(CBIR)has been developed for overthirty years,butits application in public security area is stillatits infant stage.Taking advantage of the real—world crime scene investigation (CSI) image data from the key laboratory of the ministry of public security,progresses have been made in our research in CSIimage database retrieva1.This paper ntroduces our research outcome in CSI image database retrievaland in tire pattern retrieva1.In addition,the gap between techniques and