【摘 要】
：
Anisotropic edge enhancement is simulated using a spiral phase plate(SPP) in optical scanning holography(OSH). We propose to use a delta function and an SPP as
【机 构】
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Bradley Department of Electrical and Computer Engineering Virginia Tech,Lab of Information Optics an
【出 处】
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Chinese Optics Letters
论文部分内容阅读
Anisotropic edge enhancement is simulated using a spiral phase plate(SPP) in optical scanning holography(OSH). We propose to use a delta function and an SPP as the pupil functions to realize anisotropic edge enhancement. The interference of these two pupils is used to two-dimensionally scan an object to record its edge-only information. This is done in three ways: first, by shifting the SPP, second, by using two offset SPPs of same charge, and finally, by using two oppositely charged SPPs. Our computer simulations show the capability of selectively enhancing the edges of a given object.
Anisotropic edge enhancement is simulated using a spiral phase plate (SPP) in optical scanning holography (OSH). We propose to use a delta function and an SPP as the pupil functions to realize anisotropic edge enhancement. The interference of these two pupils is used to two-dimensionally scan an object to record its edge-only information. This is done in three ways: first, by shifting the SPP, second, by using two offset SPPs of same charge, and finally, by using two oppositely charged SPPs. computer simulations show the capability of selectively enhancing the edges of a given object.
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