Seminar School of Electrical and Computer Engineering Communications and Signal Processing Area and Center for Image Analysis and Data Visualization A Two Part Talk: What is CRL? and Super-resolution for digital photography Dr. Ed Chang Digital Equipment Corporation 10:30 - 11:30 AM Thursday, March 26, 1998 K.S. Fu Room Potter
CRL is one of Digital's four research labs, and is located in Cambridge, Massachusetts, close to the MIT campus. The laboratory consists of about 35 technical staff members and five administrative staff members. Current research at CRL encompasses several themes: computer vision and graphics, human-computer interaction, video and image processing, multimedia indexing, speech recognition, mobile computing, and systems, languages, and tools for scalable parallel computation. In general, we do research that we expect to be relevant to Digital's business, either now or in the future. This includes anticipating new areas in which Digital will require competency in order to remain competitive. We try to maintain a balance in the focus of our projects, with some nearer-term and others long-term. For all digital cameras, the primary limiting factor of image resolution is the number of pixels available on a CCD. Furthermore, some device manufactures exaggerate the "resolution" of their digital images by using interpolation to increase the pixel count. We present the results of a study that measures the real resolution of digital images. We then implement a simple back projection multiple-image technique to achieve super-resolution, that is an increase of actual image detail. We find that under the proper sampling conditions, we can achieve a substantial gain in real resolution.
Dr. Chang will be interviewing students who are interested in learning more about employment opportunities at Digital Equipment Corporation from 1:00-3:30 PM in EE 118. If you are interested in speaking with him, please stop by, or send e-mail to changed@crl.dec.com. Brief Biography Ed Chang received the B.S. degree from Purdue University and the M.S. and Ph.D. degrees from U. C. Berkeley, all in electrical engineering, in 1988, 1990, and 1996 respectively. Dr. Chang was a National Science Foundation fellow from 1989 to 1992. He is currently with Digital Equipment Corporation at the Cambridge Research Lab. His research interests are in the areas of video storage, video and image processing, digital photography, and mobile computing.