Color Digital Holography Based on Generalized Phase-Shifting Algorithm with Monitoring Phase-Shift

نویسندگان

چکیده

Color digital holography (DH) has been researched in various fields such as the holographic camera and microscope because it acquires a realistic color object wave by measuring both amplitude phase. Among methods for DH, phase-shifting DH an advantage of obtaining signal objects without autocorrelation conjugate noises. However, this method usually requires many interferograms to obtain signals all wavelengths. In addition, phase-shift algorithm is sensitive error caused instability or hysteresis phase shifter. paper, we propose new with monitoring phase-shift. The are recorded using focal plane array (FPA) Bayer filter. order from unexpected values, devise generalized algorithm. proposed enables robust measurement interferograms. Experimentally, demonstrate reconstruct image negligibly small

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Phase-shifting digital holography.

A new method for three-dimensional image formation is proposed in which the distribution of complex amplitude at a plane is measured by phase-shifting interferometry and then Fresnel transformed by a digital computer. The method can reconstruct an arbitrary cross section of a three-dimensional object with higher image quality and a wider viewing angle than from conventional digital holography u...

متن کامل

Uncertainty-managed phase-shifting digital holography.

Phase-shifting digital holography is a digital measurement technology of a complex optical field profile that uses focal plane array detectors without the loss of bandwidth. It has been known that the accuracy of phase-shifting digital holography is limited mainly by the phase tolerance of reference. In this Letter, it is revealed that the uncertainty in an expected signal is highly dependent o...

متن کامل

Phase-shifting Gabor holography.

We present a modified Gabor-like setup able to recover the complex amplitude distribution of the object wavefront from a set of inline recorded holograms. The proposed configuration is characterized by the insertion of a condenser lens and a spatial light modulator (SLM) into the classical Gabor configuration. The phase shift is introduced by the SLM that modulates the central spot (dc term) in...

متن کامل

Digital Binary Phase-shift Keyed Signal Detector

We have developed the effective algorithm for detecting digital binary phase-shift keyed signals. This algorithm requires a small number of arithmetic operations over the signal period. It can be relatively easy implemented based on the modern programmable logic devices. It also provides high interference immunity by identifying signal presence when signal-to-noise ratio is much less that its w...

متن کامل

Superresolved phase-shifting Gabor holography by CCD shift

Holography in the Gabor regime is restricted to weak diffraction assumptions. Otherwise, diffraction prevents an accurate recovery of the object’s complex wavefront. We have recently proposed a modified Gabor-like setup to extend Gabor’s concept to any sample provided that it be non-diffusive. However, the resolution of the final image becomes limited as a consequence of the additional elements...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Photonics

سال: 2021

ISSN: ['2304-6732']

DOI: https://doi.org/10.3390/photonics8070241