Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurement of the modulation transfer function for focal plane arrays. Intensity thresholding of the laser-speckle patterns offers nearly an order of magnitude savings in digital storage space. The effect of this thresholding on the spatial-frequency power spectral density of the speckle pattern is investigated. An optimum threshold level is found that minimizes distortion of the power spectrum for the classes of speckle data used for modulation transfer function testing. © 1994 Optical Society of America
Laser Speckle is the optical phenomena resulting from the random interference of coherent light. Thi...
The increased complexity of imaging sensors and total number of discrete detector sites has challeng...
Speckle is inherently an interference phenomenon produced when a rough object or turbulent medium in...
Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurem...
Speckle phenomena result whenever spatially coherent radiation is reflected from a rough surface or ...
The distortion in the power spectrum of narrow-band laser speckle that results from irradiance thres...
Speckle phenomena result whenever spatially coherent radiation is reflected from a rough surface or ...
In this study we examine a power spectral density metric for characterizing laser speckle and predic...
Speckle noise is an integral part of any laser projection display because it is the nature of laser ...
We introduce an approach for analyzing the power spectrum of the time-varying intensity in the dynam...
This paper presents a method for measuring the modulation transfer function (MTF) of a detector arra...
A holographic technique is presented that increases the flux-transfer efficiency of laser speckle ge...
A speckle pattern is a quasi-random interference pattern which typically emerges when lasers are use...
A holographic technique is presented that increases the flux-transfer efficiency of laser speckle ge...
Laser Speckle is the optical phenomena resulting from the random interference of coherent light. Thi...
The increased complexity of imaging sensors and total number of discrete detector sites has challeng...
Speckle is inherently an interference phenomenon produced when a rough object or turbulent medium in...
Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurem...
Speckle phenomena result whenever spatially coherent radiation is reflected from a rough surface or ...
The distortion in the power spectrum of narrow-band laser speckle that results from irradiance thres...
Speckle phenomena result whenever spatially coherent radiation is reflected from a rough surface or ...
In this study we examine a power spectral density metric for characterizing laser speckle and predic...
Speckle noise is an integral part of any laser projection display because it is the nature of laser ...
We introduce an approach for analyzing the power spectrum of the time-varying intensity in the dynam...
This paper presents a method for measuring the modulation transfer function (MTF) of a detector arra...
A holographic technique is presented that increases the flux-transfer efficiency of laser speckle ge...
A speckle pattern is a quasi-random interference pattern which typically emerges when lasers are use...
A holographic technique is presented that increases the flux-transfer efficiency of laser speckle ge...
Laser Speckle is the optical phenomena resulting from the random interference of coherent light. Thi...
The increased complexity of imaging sensors and total number of discrete detector sites has challeng...
Speckle is inherently an interference phenomenon produced when a rough object or turbulent medium in...
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