Using Commodity Graphics Hardware for Real-Time Digital Hologram View-Reconstruction

Abstract

Abstract-View-reconstruction and display is an important part of many applications in digital holography such as computer vision and microscopy. Thus far, this has been an offline procedure for megapixel sized holograms. This paper introduces an implementation of real-time view-reconstruction using programmable graphics hardware. The theory of Fresnel-based view-reconstruction is introduced, after which an implementation using stream programming is presented. Two different fast Fourier transform (FFT)-based reconstruction methods are implemented, as well as two different FFT strategies. The efficiency of the methods is evaluated and compared to a CPU-based implementation, providing over 100 times speedup for a hologram size of 2048 × 2048.

Space–bandwidth ratio as a means of choosing between Fresnel and other linear canonical transform algorithms

“…However, the actual run time of the calculations is specific to each combination of platform and implementation as well as to the optical system parameters. In situations where a large number of transformations of different inputs for the same ABCD system must be calculated [13], experimentation to determine the precise ranges where various algorithms are advantageous is clearly advisable.…”

“…In particular, analysis of the algorithm presented in [10] is straightforward because that algorithm does not depend on the decomposition of the ABCD matrix, and thus it requires the number of samples indicated by the common terms in Eqs. (12) and (13). In the example in Fig.…”

GPU accelerated holographic microscopy for the inspection of quickly moving fluids for applications in pharmaceutical manufacturing

“…The Fresnel-Kirchhoff integral describes this light propagation between the holographic plane and the object plane 8 :…”

Displaying digital holograms of real-world objects on a mobile device using tilt-based interaction

“…Also, the processing requirements for creating real-time reconstructions [12,13] may restrict displaying of holograms on mobile devices until they incorporate dedicated graphics hardware comparable to that curr ently in today's laptop computers.…”