– February 26, 2007 in Leeds, Massachusetts) was an American computer scientist and a Professor Emeritus at the University of Massachusetts Amherst.
Riseman was a pioneer in the field of computer vision and artificial intelligence who made significant contributions to image database and content-based image retrieval, including the design of one of the first knowledge-based image understanding systems that handled very complex natural images.
He was a co-author on the landmark paper on a four-step process for extracting straight lines from intensity images.
Riseman was a Fellow of the American Association for Artificial Intelligence (AAAI), a senior member of the Institute of Electrical and Electronics Engineers (IEEE), a member of the Association for Computing Machinery (ACM), and a member of the Pattern Recognition Society.