Abstract

A random-dots plate is represented as a new code for x-ray-tube anodes. A method, employing incoherent light, is described for decoding coded objects by reversing the rays in the process of coding. The effect of the decoding on dilute and continuous-tone objects is illustrated. The dilute object decodes well, but the continuous-tone object is little improved. A brief noise analysis is given, explaining this result.

© 1975 Optical Society of America

Decoding of a noncoherent hologram using noncoherent light

R. Silva and Gordon L. Rogers
J. Opt. Soc. Am. 65(12) 1448-1450 (1975)

Spatially multiplexed infrared camera*

D. W. Davies
J. Opt. Soc. Am. 65(6) 707-711 (1975)

Image of a sinusoidal complex object in a partially coherent optical system

Y. Ichioka, K. Yamamoto, and T. Suzuki
J. Opt. Soc. Am. 65(8) 892-902 (1975)

Fourier spectrum of halftone images

D. Kermisch and P. G. Roetling
J. Opt. Soc. Am. 65(6) 716-723 (1975)

Second-order statistics of laser-speckle patterns*

M. G. Miller, A. M. Schneiderman, and P. F. Kellen
J. Opt. Soc. Am. 65(7) 779-785 (1975)