In a previous work done by the authors, it was shown that the superresolution concept based on two moving gratings could be effected by a physical grating attached to the object and a virtual grating. This concept was shown to be very efficient and exhibited features that are helpful in removing some artifacts caused when coherent illumination is used. Furthermore, it simplifies the optical and mechanical modules of the super-resolving system by removing the need for mechanical movement of one grating. However, the system still required the need for moving the first (encoding) grating attached to the input. In this study the encoding grating is replaced by use of a projected grating. This approach simplifies the need for attaching the grating to the input object and thus new applications, such as remote sensing can be considered. The theoretical concept is demonstrated and experimental results are shown.
© 2002 Optical Society of America
Original Manuscript: June 5, 2002
Revised Manuscript: September 17, 2002
Published: December 10, 2002
Amir Shemer, Zeev Zalevsky, David Mendlovic, Naim Konforti, and Emanuel Marom, "Time multiplexing superresolution based on interference grating projection," Appl. Opt. 41, 7397-7404 (2002)