2 citations · 2 across the 8 of their papers we have counts for
9 papers
Opto-Atomic Spatio-Temporal Holographic Correlators for High-Speed 3D CNNs
Xi Shen, Bowen Qi, Tabassom Hamidfar +1
Three-dimensional convolutional neural networks (3D CNNs) have demonstrated remarkable performance in video recognition tasks by processing both spatial and temporal features. Howe…
Shift, Scale and Rotation Invariant Multiple Object Detection using Balanced Joint Transform Correlator
Xi Shen, Julian Gamboa, Tabassom Hamidfar +2
The Polar Mellin Transform (PMT) is a well-known technique that converts images into shift, scale and rotation invariant signatures for object detection using opto-electronic corre…
Automatic Event Recognition Employing Optically Excited Electro-Nuclear Spin Coherence
Shamima Mitu, Xi Shen, Julian Gamboa +2
An analog automatic event recognition (AER) system can be realized by combining the technique of holographic image recognition with the process of temporal signal correlation emplo…
Debiased Opto-electronic Joint Transform Correlator for Enhanced Real-Time Pattern Recognition
Julian Gamboa, Xi Shen, Tabassom Hamidfar +2
Opto-electronic joint transform correlators (OJTCs) use a focal plane array (FPA) to detect the joint power spectrum (JPS) of two input images, projecting it onto a spatial light m…
Temporal Scale and Shift Invariant Automatic Event Recognition using the Mellin Transform
Xi Shen, Julian Gamboa, Tabassom Hamidfar +2
The Spatio-temporal holographic correlator combines the traditional 2D optical image correlation techniques with inhomogeneously broadened arrays of cold atoms to achieve 3D time-s…
Ultra-fast Real-time Target Recognition Using a Shift, Scale, and Rotation Invariant Hybrid Opto-electronic Joint Transform Correlator
Xi Shen, Julian Gamboa, Tabassom Hamidfar +2
Hybrid Opto-electronic correlators (HOC) overcome many limitations of all-optical correlators (AOC) while maintaining high-speed operation. However, neither the OEC nor the AOC in…
High-speed Opto-electronic Pre-processing of Polar Mellin Transform for Shift, Scale and Rotation Invariant Image Recognition at Record-Breaking Speeds
Julian Gamboa, Xi Shen, Tabassom Hamidfar +1
Space situational awareness demands efficient monitoring of terrestrial sites and celestial bodies, necessitating advanced target recognition systems. Current target recognition sy…
Ultrafast Image Retrieval from a Holographic Memory Disc for High-Speed Operation of a Shift, Scale, and Rotation Invariant Target Recognition System
Julian Gamboa, Xi Shen, Tabassom Hamidfar +1
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 pola…
Localization of light in an optical microcapillary introduced by a droplet
Tabassom Hamidfar, Kirill V. Tokmakov, Brian J. Mangan +5
Sensing with optical whispering gallery modes (WGMs) is a rapidly developing detection method in modern microfluidics research. This method explores the perturbations of spectra of…