A system for electronic imaging of a hemispheric field of view includes a camera for receiving optical images of the field of view and for producing output data corresponding to the optical images. The camera includes an optical assembly for producing images throughout a hemispheric field of view for...http://www.google.com.au/patents/US5508734?utm_source=gb-gplus-sharePatent US5508734 - Method and apparatus for hemispheric imaging which emphasizes peripheral content
