Abstract

We propose a method for increasing the resolution of an aperture limited optical system by illuminating the input with a speckle pattern. The high resolution of the projected speckle pattern demodulates the high frequencies of the sample and permits its passage through the system aperture. A decoding provides the superresolved image. The speckle pattern can be generated in a simple manner in contrast with other structured light superresolution methods. The method is demonstrated in microscopy test images.

©2005 Optical Society of America

Superresolved imaging based on wavelength multiplexing of projected unknown speckle patterns

Omer Wagner, Ariel Schwarz, Amir Shemer, Carlos Ferreira, Javier García, and Zeev Zalevsky
Appl. Opt. 54(13) D51-D60 (2015)

Aberration-free superresolution imaging via binary speckle pattern encoding and processing

Eyal Ben-Eliezer and Emanuel Marom
J. Opt. Soc. Am. A 24(4) 1003-1010 (2007)

Synthetic aperture superresolution with multiple off-axis holograms

Vicente Mico, Zeev Zalevsky, Pascuala García-Martínez, and Javier García
J. Opt. Soc. Am. A 23(12) 3162-3170 (2006)

Speckle-free laser projection structured illumination microscopy based on a digital micromirror device

Xiaoyan Li, Shunyu Xie, Wenjie Liu, Luhong Jin, Yingke Xu, Luhao Zhang, Xiang Hao, Yubing Han, Cuifang Kuang, and Xu Liu
Opt. Express 29(26) 43917-43928 (2021)

Three-dimensional mapping and range measurement by means of projected speckle patterns

Javier García, Zeev Zalevsky, Pascuala García-Martínez, Carlos Ferreira, Mina Teicher, and Yevgeny Beiderman
Appl. Opt. 47(16) 3032-3040 (2008)