Abstract
The posedness of extending a band-limited image known only within a cone is considered. The problem is globally ill posed in the sense that the output-error energy cannot be bound over the entire unknown image region corresponding to a given input-data error energy. We demonstrate, however, that the problem is locally well posed in the sense that, within a finite area of the unknown image region, the error can be bound.
© 1982 Optical Society of America
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