Elimination of optical phase sensitivity in a shift, scale, and rotation invariant hybrid opto-electronic correlator via off-axis operation

J Gamboa, T Hamidfar, X Shen, SM Shahriar - Optics Express, 2023 - opg.optica.org
The hybrid opto-electronic correlator (HOC) uses a combination of optics and electronics to
perform target recognition. Achieving a stable output from this architecture has previously …

Ultrafast image retrieval from a holographic memory disc for high-speed operation of a shift, scale, and rotation invariant target recognition system

J Gamboa, X Shen, T Hamidfar, SM Shahriar - arxiv preprint arxiv …, 2022 - arxiv.org
The hybrid opto-electronic correlator (HOC) architecture has been shown to be able to
detect matches in a shift, scale, and rotation invariant (SSRI) manner by incorporating a …

Demonstration of shift, scale, and rotation invariant target recognition using the hybrid opto-electronic correlator

J Gamboa, M Fouda, SM Shahriar - Optics Express, 2019 - opg.optica.org
Previously, we had proposed a hybrid opto-electronic correlator (HOC), which can achieve
the same functionality as that of a holographic optical correlator but without using any …

Integration of a PQ: PMMA holographic memory device into the hybrid opto-electronic correlator for shift, scale, and rotation invariant target recognition

J Gamboa, T Hamidfar, SM Shahriar - Optics Express, 2021 - opg.optica.org
The hybrid optoelectronic correlator (HOC) combines optical and electronic signal
processing to achieve the same functionality as traditional optical correlators but without the …

Experimental demonstration of the hybrid opto-electronic correlator for target recognition

MS Monjur, S Tseng, MF Fouda, SM Shahriar - Applied optics, 2017 - opg.optica.org
Optical target recognition using correlators is an important technique for fast verification and
identification of images. The hybrid opto-electronic correlator (HOC) recently proposed by us …

Hybrid optoelectronic correlator architecture for shift-invariant target recognition

MS Monjur, S Tseng, R Tripathi… - Journal of the Optical …, 2013 - opg.optica.org
In this paper, we present theoretical details and the underlying architecture of a hybrid
optoelectronic correlator (HOC) that correlates images using spatial light modulators (SLMs) …

High-speed Opto-electronic Pre-processing of Polar Mellin Transform for Shift, Scale and Rotation Invariant Image Recognition at Record-Breaking Speeds

J Gamboa, X Shen, T Hamidfar, SM Shahriar - arxiv preprint arxiv …, 2023 - arxiv.org
Space situational awareness demands efficient monitoring of terrestrial sites and celestial
bodies, necessitating advanced target recognition systems. Current target recognition …

Peculiarities of melin transform application to symbol recognition

YM Furgala, BP Rusyn - 2018 14th International Conference on …, 2018 - ieeexplore.ieee.org
The work analyzes the efficiency of the use of the Mellin transform for character recognition
and evaluates the boundaries of changing image parameters, in which this method is …

All optical three dimensional spatio-temporal correlator for automatic event recognition using a multiphoton atomic system

MS Monjur, MF Fouda, SM Shahriar - Optics Communications, 2016 - Elsevier
We describe an automatic event recognition (AER) system based on a three-dimensional
spatio-temporal correlator (STC) that combines the techniques of holographic correlation …

[PDF][PDF] 基于多通道联合变换相关器的旋转和缩放不变性目标识别方法

林超, **艳丽, 娄树理, 刘珮, 张文龙… - Chinese Journal of …, 2022 - researching.cn
摘要为充分利用光学相关识别系统的空间-频谱带宽, 提高光学相关识别系统的速度和精度,
提出一种基于多通道联合变换相关器和综合鉴别函数的旋转和缩放不变性目标识别方法 …