tailieunhanh - Báo cáo hóa học: " Editorial Super-Resolution Enhancement of Digital Video"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Editorial Super-Resolution Enhancement of Digital Video | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2007 Article ID 20984 3 pages doi 2007 20984 Editorial Super-Resolution Enhancement of Digital Video Russell C. Hardie 1 Richard R. Schultz 2 and Kenneth E. Barner3 1 Department of Electrical and Computer Engineering University of Dayton 300 College Park Dayton OH 45469-0026 USA 2 Department ofElectrical Engineering University of North Dakota Upson II Room 160 . Box 7165 Grand Forks ND 58202-7165 USA 3 Department of Electrical and Computer Engineering University of Delaware 140 Evans Hall Newark dE 19716-3130 USA Received 10 June 2007 Accepted 10 June 2007 Copyright 2007 Russell C. Hardie et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. When designing a system for image acquisition there is generally a desire for high spatial resolution and a wide field of view. To satisfy these competing requirements a camera system typically must employ small f -number optics which produces an image with very high spatial-frequency bandwidth at the focal plane. To avoid aliasing caused by undersampling the corresponding focal plane array FPA must be sufficiently dense. However cost and fabrication complexities may make this impractical. More fundamentally smaller detectors capture fewer photons which can lead to potentially severe noise levels in the acquired imagery. Considering these factors one may choose to accept a certain level of undersampling or to sacrifice some optical resolution and or field of view. In super-resolution SR image reconstruction postprocessing is used to obtain images with resolutions that go beyond the conventional limits of the uncompensated imaging system. In some systems the primary limiting factor is the optical resolution of the image in the focal plane as defined by the cut-off .