Anatoly VasilievAV Optics & Photonics · Owner
Anatoly Vasiliev
PhD
Application of artificial intelligence and machine learning in optics and photonics.
About
82
Publications
18,562
Reads
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223
Citations
Citations since 2017
Introduction
Modeling and optical design of visible/SWIR/MWIR/LWIR imaging sensors, fiber-optic/micro-optic CWDM MUX/DEMUX systems, and binary phase only filters for optical correlators using FLC SLMs, FLC and optical phased arrays. Developing AI applications for object detection, recognition, and tracking. Metamaterial optics design and development. Writing SBIR proposals on 3D imaging, adaptive optics, artificial intelligence, and laser systems and components.
Additional affiliations
October 2016 - present
AV Optics & Photonics
Position
- Consultant
Description
- Consulting on Lasers, Optics, Photonics, Imaging Systems, Optical Data Processing, Automated Target Recognition, and AI systems.
June 2015 - October 2016
Inneos, LLC
Position
- Senior Optical Design Engineer
Description
- Modeling, optical design and integration of fiber-optic/micro-optic CWDM MUX/DEMUX systems.
September 2011 - October 2013
Position
- Senior System Architect
Description
- Modeling, developing and building advanced metrology tools for semiconductor industry.
Education
January 1977 - March 1980
September 1966 - June 1971
Moscow Institute of Electronics Engineering
Field of study
- Electronics Devices, Quantum Electronics
Publications
Publications (82)
This presentation describes a single layer metamaterial (SLAM) lens design which provides achromatically corrected imaging at wavelengths 486 nm, 587 nm, and 656.3 nm. SLAM design uses the fishnet-achromatic-metalens (FAM) geometry described in Ref. [1]. The SLAM design approach is based on the simultaneous control of the wavelength dependent phase...
DMG SmartTrack application involves video stream acquisition, recording a video, detection, tracking, localization of multiple people (people’s distances from the camera and and their azimuth angles), and timing.
Acquisition: acquire a video file with a calibrated camera.
Detection: detect objects of interest in a video frame.
Prediction: predict t...
Contact Tracing has become a very important procedure in our fight to stop and/or slow the spread of COVID-19. Manual methods for performing contact tracing are sub-optimal given the need to rely on people’s memory to reference the variance contact instances they had with other people. Mobile apps that assisted in alerting people and keeping record...
GOAL: To apply Artificial Intelligence (AI) driven solutions to video surveillance to mitigate user adoption while maintaining privacy. Develop techniques for people ID and tracking in 4-D space-time continuum to ensure safety.
ABSTRACT: Contact Tracing has become a very important procedure in our fight to stop and/or slow the spread of COVID-19....
A system for providing illumination to a measurement head for optical metrology is configured to combine illumination beams from a plurality of illumination sources to deliver illumination at one or more selected wavelengths to the measurement head. The intensity and/or spatial coherence of illumination delivered to the measurement head is controll...
The disclosure is directed to systems for providing illumination to a measurement head for optical metrology. In some embodiments of the disclosure, illumination beams from a plurality of illumination sources are combined to deliver illumination at one or more selected wavelengths to the measurement head. In some embodiments of the disclosure, inte...
The meeting of the Optical Society of Southern California (OSSC) held on October 5, 2016 in Pasadena, Calif., featured a terrestrial tour of airborne mapping spectroscopy at Nasa’s Jet Propulsion Laboratory (JPL). Mark Helmlinger, Earth Scientist of JPL's Earth Sciences team reviewed the Airborne Visible / Infrared Imaging Spectrometer (AVIRIS) pro...
Multi-spectral detection and correlation tracking of targets in clutter.
A report is given of calculations and experimental results demonstrating the effectiveness of the use of controlled matrix-type phase transparencies based on nematic liquid crystals in optoelectronic systems performing two-dimensional Walsh and Hilbert transformations.
The results are given of investigations of electrooptic characteristics of controlled transparencies made of nematic liquid crystals, which can be used as tunable (dynamic) filters in image converter systems. Tunable spatial filters, controlled by electrical and optical signals, make it possible to alter expeditiously the spatial-frequency characte...
A review is given of recent progress in the development and applications of spatial light modulators
(controlled transparencies) in the form of photosensitive multilayer structures containing a liquid crystal. A
considerable improvement is reported in the most important parameters of the process of modulation of light
such as the sensitivity (now 1...
This paper presents feasibility studies of a multispectral moving target detection (MTD) system designed to detect and track low-signature moving targets. The system performs multispectral detection based on linear and nonlinear optimal discriminating features (ODF) for low-signature target detection and correlation tracking of slowly moving target...
This paper presents feasibility studies of a multispectral moving target detection (MTD) system designed to detect and track low-signature moving targets. The system performs multispectral detection based on linear and nonlinear maximum discrimination and representation features (MRDF) for low-signature target detection and correlation tracking of...
A backlight assembly is disclosed having a light pipe and at least one light source located at an edge of the light pipe. The light pipe has a back surface and a front surface opposite the back surface. The light pipe also has one or more light directing, diffusing, turning, or brightness enhancing film layers adjacent the front surface. The light...
A backlight assembly is disclosed having a light pipe and at least one light source located at an edge of the light pipe. The light pipe has a back surface and a front surface opposite the back surface. The light pipe also has one or more light directing, diffusing, turning, or brightness enhancing film layers adjacent the front surface. The light...
A non-scattering light pipe includes a transition surface between a first side wall and an input surface and a second side wall and the input surface. The transition surface is arranged to substantially obscure the corner interfaces between the first and second side walls and the input surface such that in the corner formation any imperfections the...
A fiber optic luminaire is arranged to couple light energy from a light source along its length. The fiber optic luminaire includes a plurality of light redirecting structures distributed along its length; the light redirecting structures are arranged to uniformly distribute by reflection light energy from the fiber optic luminaire. The light redir...
This paper describes an Opto-Silicon Adaptive Imaging (OSAI) system capable of operating at low light intensities with high resolution, high accuracy, wide dynamic range, and high speed. The system consists of three major subsystems: (1) an adaptive imaging system in which a liquid crystal wavefront corrector measures image quality based on statist...
This paper describes all-optical packet header processing by content-addressable memory and optical joint transform correlation. The results of proof-of-principle computer simulation and experiment are presented.
This paper describes an Opto-Silicon Adaptive Imaging (OSAI) system capable of operating at low light intensities with high resolution, high accuracy, wide dynamic range, and high speed. The system consists of three major subsystems: (1) an adaptive imaging system in which a liquid crystal wavefront corrector measures image quality based on statist...
A method of rapid prototyping a lighting system which is at least one of folded path and multifaceted includes determining output power of the lighting system by calculating phase space density. A method of rapid prototyping a lighting system comprises ray tracing the lighting system, determining photometric quantities which describe the lighting s...
this paper we examine a concept for effectively achieving complex modulation. It is a direct extension of pseudorandom encoding in that any one group is an array of random phase shifts all drawn from the same statistical distribution. We show that each group can be realized as a diffuser pixel having a specified roughness and average step height. W...
This paper presents an eye tracking system that combines optical and electronic image processing for the precise measurement of eye movement parameters, including direction, speed, and acceleration. The system applies optical joint Fourier transform correlator and novelty filtering to measure the cross-correlation peak displacement caused by eye mo...
Fractal image processing technology has been recognized as having great potential in automatic target recognition (ATR) and image compression. In this paper, Physical Optics Corporation demonstrates the feasibility of using a fractal image processing technique as a new and efficient approach for signature, pattern, and object recognition. Using opt...
An all-optical reconfigurable crossbar switch is implemented by unique integration of dynamic photopolymer technology, simple geometry optics, and waveguide technology. This all-optical crossbar switch provides high reconfigurability, large fanout, and radiation hardening. These characteristics are essential for both parallel/distributed processing...
An optical communication/switching system with data speeds well beyond any state-of-the-art electronic board-to-board computer interconnect is proposed. This interconnect is based on the use of microprism arrays to achieve large-scale, wideband interconnections for optoelectronic systems.
Optical interconnects have been designed, fabricated, and tested, and a graphics processor based on field-programmable gate arrays has been designed. The board-to-board connection approach is based on multi-channel integrated optical waveguides with novel optoelectronic active connectors, allowing multiple simultaneous data transfers among many boa...
Artificial neural networks have proven to be powerful tools for sensor fusion, but they are not adaptable to sensor failure in a sensor suite. Physical Optics Corporation (POC) presents a new sensor fusion algorithm, applying fuzzy logic to give a neural network real-time adaptability to compensate for faulty sensors. Identifying data that originat...
Genetic algorithm performance has been improved by adaptively modifying genetic operators, and by filtering out recurring chromosomes from the fitness evaluation process. The enhanced genetic algorithm has been applied to neural network topology selection and function optimization. The performance of the algorithm was evaluated in multiple function...
Holographic recording techniques have been applied to implement
synthetic estimation filters (SEF) for pose estimation of a docking
spacecraft. Each SEF is a weighted combination of Fourier-plane hologram
exposures of different target attitudes. These particular attitudes
represent a span of the attitudes among which the SEFs will
ratiometrically i...
In this paper, radiometric ray tracing (R2T), based on phase-space formalism, is formulated.
![Figure 9 Noisy images mapped into the [d 1 , d 2 ] decision space....](profile/Anatoly-Vasiliev/publication/253810659/figure/fig3/AS:669160820449286@1536551780415/Noisy-images-mapped-into-the-d-1-d-2-decision-space-Noise-level-is-fixed-at-034-of_Q320.jpg)
Optoelectronic SAR signal processing for real-time parallel adaptive on-board wide area surveillance and ATR applications is described. The signal processing architecture consists of a coarse ATR processor that performs early detection of small targets to select regions of interest in a large field of view, and a fine ATR processor for accurate cla...
Physical Optics Corporation has developed an autostereoscopic D display system that does not require viewers to wear goggles. This system is based on a stationary holographic projection diffuser fabricated using volume multiphase holographic optical elements. Design and development of the prototype are also described. Bibtex entry for this abstract...
Processing of spatial and temporal optical flows with real time local correlation technique is described and discussed. Simulations and experiments with a time integrating acousto-optical correlator on real stereoimages are reported together with simulation on particle image velocimetry processing. Local correlation of 2D images done with an 1D cor...
This report contains the results on sensitivity, uniformity, phase and amplitude modu-
lation, resolution (imaging and interferometric), and speed (time response) tests of three
Russian liquid crystal light valve (LCLV) spatial light modulators (SLMs). Section 1
describes the devices under examination and how they are unique and di�er from other
LC...
A hybrid device which consists of a liquid crystal spatial light modulator (LC SLM) connected through fiber optics to a TV screen, being interfaced to a desk-top computer, is used for generating binary phase-only spatial filters (BPOFs) in a real-time TV/optical correlator. An adaptive optical/digital correlator with a BPOF and nonlinear feedback i...
The hybrid device which consists of a liquid crystal spatial light modulator connected through fiber optics to a TV screen, being interfaced to a desk-top computer, is used for generating binary phase-only spatial filters (BPOFs) in a real-time TV/optical correlator. An adaptive optical/digital correlator with a BPOF and nonlinear feedback is descr...
A holographic associative memory in a feedforward network is implemented using photosensitive liquid crystal light valve (LCLV) as a phase conjugate mirror (PCM). In the case of three simple binary images stored in the Fourier hologram the completely reconstructed single output image (rectangle) is observed with only a quarter of the image present...
A holographic associative memory in a feedforward network is implemented using photosensitive liquid crystal light valve (LCLV) as a phase conjugate mirror (PCM). In the case of three simple binary images stored in the Fourier hologram the completely reconstructed single output image (rectangle) is observed with only a quarter of the image present...
We consider some specific problems and phenomena of morphogenetic information storage, reproduction, and transfer including phantom leaf effect and field-induced morphogenetic translations between different taxonomic units. Several experimental results are presented and their explanation is given using a new approach to morphogenesis which combines...
An approach to hybrid optical/digital pattern recognition and scene analysis is described which uses a correlation procedure to compare the initial image (object, scene) with its rotated copy. The correlation function of object description obtained via this procedure is shown to possess scale and rotation invariance and to contain information about...
A new approach to scene analysis is prpposed, which includes object coordinate determination, feature selection based on a training set, and feature extraction. Computer simulation demonstrates that objects can be located and classified by a correlation procedure, which is confirmed by experiments performed with a coherent optical correlator contai...
A holographic associative memory in a feedforward network is implemented using photosensitive
liquid crystal light valve (LCLV) as a phase conjugate mirror (PCM). In the case of three simple
binary images stored in the Fourier hologram the completely reconstructed single output
image (rectangle) is observed with only a quarter of the image present...
Using the photon correlation spectroscopy, slowly damping quasiperiodic oscillations of long-wave density fluctuations were observed for the first time in semidiluted solutions of DNA fragments with the mean length of 25000 base pairs and the concentration above 1 mg/ml. They may be accounted for by the formation of a soft gel type microstructure.
Using the photon correlation spectroscopy, slowly damping quasiperiodic oscillations of long-wave density fluctuations were observed for the first time in semidiluted solutions of DNA fragments with the mean length of 25000 base pairs and the concentration above 1 mg/ml. They may be accounted for by the formation of a soft gel type microstructure.
We consider some specific problems and phenomena of morphogenetic information storage, reproduction, and transfer including phantom leaf effect and field-induced morphogenetic translations between different taxonomic units. Several experimental results are presented and their explanation is given using a new approach to morphogenesis which combines...
LC SML is used as phase conjugation mirror in holographic associative memory; a complete reconstruction of the images is observed when the input image is even one-fourth itself.
An approach is described to the development of a hybrid optodigital system of pattern recognition and scene analysis, based on a correlation procedure of comparing the initial image (object, scene) with the result of its geometric transformation. It is shown that the correlation function obtained through this procedure for describing the objects of...
The possible use of an optically controlled liquid-crystal spatial light modulator for the formation of a prescribed wave front in problems of focusing onto linear and planar areas is studied. Focusing into a line, circle, and square was achieved. Controlled phase lattices with different profiles were fabricated.
It is shown that an optically controlled liquid-crystal spatial modulator can be used to form a given wavefront when focusing on a line or a plane. Focusing to form a line, a circle, and a square are demonstrated.
An approach to hybrid optical digital pattern recognition is
proposed which uses a correlation procedure for the initial image
comparison with the results of its geometrical transformation. It is
shown that the obtained description of the object to be recognized
provides the invariance with respect to the object scale and orientation
and that it co...
The paper is concerned with the possibility of the synthesis of tunable emission focusers. In accordance with the approach used here, a light beam with a uniform intensity distribution in the focusing region is obtained by using a liquid-crystal spatial-temporal light modulator with microcomputer-based optical control. A scheme of the experimental...
Laboratory experiments were carried out on the compensation of nonlinear distortions of an optical beam by a 15-channel adaptive optical system controlled by a microcomputer. Nonlinear distortions were created by a liquid-crystal light modulator and they resulted in a tenfold reduction of the fraction of energy in the focal spot. Adaptation made it...
В книге впервые последовательно и всесторонне рассмотрены вопросы создания и применений пространственных модуляторов света - ключевых элементов устройств и систем ввода-вывода, преобразования и параллельной обработки в реальном масштабе времени массивов сигналов и изображений. Книга состоит из двух частей. В первой части, исходя из требований к про...
The principle of operation of dynamic image converters using a liquid-crystal film as an electrooptic material is examined. It is noted that some of the performance characteristics of current liquid-crystal image converters, such as sensitivity, speed, and resolution, are the highest among instruments of this class. The high performance of liquid-c...
The current status of optically controlled spatial-temporal light modulators (STLM) is reviewed, and functional properties and applications are discussed. Particular attention is given to the characteristics of various types of STLM image converters; the design of a hybrid STLM image intensifier with an electron-optic converter; a scheme involving...
The operating principle of dynamic image converters using a liquid-crystal film as electrooptic material is described. The characteristics which have been achieved are reported. Specifically, the sensitivity to the exposing image has reached a fraction of a microwatt per square centimeter; the resolution has reached 1000 mm** minus **1; and the spe...
Space-time light modulators (STLM) are major components in optoelectronic data processing units operating in real time; they are also of increasing importance in laser control. The survey deals with optically controlled modulators, particularly research on parameters, functions, and applications.
An experimental investigation was made of the use of liquid-crystal phase correctors of wavefronts.
Prototype correctors were prepared with independent addressing of the elements and
these were found capable of compensating distortions of wavefronts of radiation of wavelengths
0.5–6μ.
A new method of pattern recognition based on extraction of symmetry features in images is proposed. It makes use of the property of symmetric figures to coincide when they are subjected to transformations (translation, rotation, mirror reflection) according to their symmetry. Experiments on the detection of symmetric pattern inin binary images have...
A system for holographic page-organized recording of data with the aid of a time-dependent phase-modulated object beam was proposed and tested. Transformation of the initial amplitude image into one modulated in phase was performed in a liquid-crystal spatial light modulator. This system made it possible to relax requirements in respect of the homo...
An analysis is made of the construction, operating principle, and possible applications of analog spatial light modulators performing the function of a rotating slit and intended for optical data processing systems. A report is given of the characteristics of prototype modulators in which liquid crystals are used and a theoretical analysis of their...
Results of experiments on the suppression of interfering spatial signals in antenna arrays by means of coherent optical processing are presented. The experimental setup, using an LiTaO//3 space-time modulator as the input device and an optically controllable liquid-crystal transparency as the filter, is described. A suppression level of 20 db has b...
The use of photoconductor-liquid crystal (PLC) structures in optoelectronic information processing systems is considered. The characteristics of spatial light modulation in PLC structures are examined, and results are presented regarding the utilization of these structures for the conversion of images with respect to wavelength and type of radiatio...
The operation of an LC light valve with a planarly orientated nematic cell with photosensible semiconductor layer is discussed using S-deformation near Frederiksz transition. Optical phase conjugation (OPC) of He-Cd laser radiation (lambda=441.6 nm) with microwatt power is suggested and performed experimentally by the incident reference wave power...
The method of Grinev et al. (1980) for the suppression of spatial interference signals in antenna arrays with coherent optical processing was verified experimentally. The experimental system and array design are described. A suppression depth of 20 dB was achieved.
A proposal is made that pseudorandom binary signals be used as key words in an associative holographic memory because this extends considerably the range of different key words. An experimental check is reported of generation of key words with the aid of optically controlled transparencies, and of the correlation characteristics of some pseudobinar...
An investigation was made of the eleetro-optic properties of a ferroelectric ceramic-
photoconductor structure with the aim of constructing an optically controlled transparency
performing phase modulation of the reflected and transmitted light. The resolution of the
structure, deduced from the fall of the frequency-contrast characteristic to half...
The behaviour of homogeneously aligned nematic liquid crystal layers in inhomogeneous electric fields has been theoretically and experimentally investigated. The variation of the phase retardation of monochromatic light along nematic liquid crystal layer at the edges of a cell electrode has been obtained. Anisotropic character of the resolution of...
To create coherent optical processors /1/ with ample functional opportunities of parallel block data processing in the real time, it is necessary to provide fast data input, as well as the control of optical system impulse responses. These problems can be solved by means of electrically and optically addressed space-time optical modulators or contr...
A raster of holographic beam splitters was recorded directly in the optical system of a holographic memory. The aberrations of an objective lens, distorting the structure of the signal beam, were corrected.
Formation and transformation of information represented in digital or analog form by means of controlled transparencies is the basis for construction of memory elements, optical processors and other data processing and computer assemblies. Electro-optic ceramics is a promising material for some controlled transparency applications.
Results on the s...
(For abstract see issue 07, p. 964, Accession no. A75-20159)
A holographic memory was constructed and used to store microprograms for tuning a homogeneous medium operating in conjunction with a digital computer. Holograms were recorded using a controlled transparency which made it possible to form optical tuning patterns and to project them directly onto a photodetector array of the homogeneous medium.
Study of the optical and temporal characteristics of a memory element (an integrated optoelectronic flip-flop using MOS transistors) when information from a hologram is reconstructed by a semiconductor laser on this element. The hologram reconstruction was performed at room temperature by a laser operating in the pulsed mode at a wavelength of 910...
An investigation was made of the light-switching action of a structure consisting of a CdS film and an oriented liquid-crystal film, both enclosed between transparent electrodes. The spatial modulation of the conductivity in the photosensitive CdS film, produced by a helium–cadmium laser control beam, altered the voltage across the liquid-crystal f...
An investigation was made of the frequency characteristics of the switching on and off of the dynamic scattering of light in nematic liquid crystals in alternating electric fields. A study was made of the influence of an alternating electric field and of short field pulses on the duration of dynamic scattering. A complete image-recording cycle was...
Questions
Question (1)
Thank you for publishing the 4th Edition of your Fourier Optics book. Does Macmillan plan on publishing the book in electronic format?
Projects
Projects (5)
Single layer metamaterial lens design uses a fishnet-achromatic-metalens (FAM) geometry, which represents a periodic structure of nanopillars with fixed height. The cross-section of nanopillars varies to provide the required effective index distribution within the clear aperture of the metamaterial lens while achieving the achromatic performance in visible spectral range. The FAM metamaterial lens is modeled and designed using MATLAB linked to COMSOL Multiphysics.
Apply Artificial Intelligence (AI) driven solutions to video surveillance to mitigate user adoption while maintaining privacy. Develop techniques for people ID and tracking in 4-D space-time continuum to ensure safety.