Kehar Singh

发表

Encryption by using matrix-added, or matrix-multiplied input images placed in the input plane of a double random phase encoding geometry

Kehar Singh, M. M. Singh, Arvind Kumar, 2009 .

Phase reconstruction in lensless digital in-line holographic microscopy

J. Joseph, Anith Nelleri, Kehar Singh, 2010 .

Second- and first-order phase-locked loops in fringe profilometry and application of neural networks for phase-to-depth conversion

Kehar Singh, Dinesh Ganotra, Joby Joseph, 2003 .

Three-dimensional rigid body motion measurement using speckle fanning in a photorefractive BaTiO3 crystal

Arvind Kumar, Kehar Singh, K. S. Dharmsaktu, 2001 .

Three-dimensional displacement measurement using chirp modulation in a photorefractive correlator

Kehar Singh, Renu Tripathi, G. S. Pati, 1998 .

DETERMINANTS OF RETAIL PRICE AND SALES VOLUME OF CATFISH PRODUCTS IN THE UNITED STATES: AN APPLICATION OF RETAIL SCANNER DATA

Kehar Singh, M. Dey, C. Engle, 2014 .

Material saturation in photopolymer holographic data recording and its effects on bit-error-rate and content-addressable search

Kehar Singh, Joby Joseph, Bhargab Das, 2009 .

Securing multiplexed information by in-plane rotation of random phase diffusers constituting a sandwich diffuser placed in the Fourier plane of a double random phase encoding system

Kehar Singh, M. M. Singh, Arvind Kumar, 2009 .

Encryption and decryption using a sandwich phase diffuser made by using two speckle patterns and placed in the Fourier plane: Simulation results

Kehar Singh, M. M. Singh, Arvind Kumar, 2009 .

A cryptosystem for watermarking based on fractional Fourier transform using a random phase mask in the input plane and a structured phase mask in the frequency plane

Kehar Singh, Hukum Singh, A. Yadav, 2014 .

Double random phase encryption with in-plane rotation of a modified Lohmann's second- type system in the anamorphic fractional Fourier domain

Kehar Singh, Joby Joseph, Pramod Kumar, 2008 .

One — dimensional laser beam steering using frequency detuning in two — wave mixing with a BaTiO3 crystal

J. Joseph, Kehar Singh, K. S. Dharmsaktu, 2000 .

Effect of strong pump depletion on two-beam coupling in photorefractive BaTiO3 at 442 nm

J. Joseph, Kehar Singh, P. Pillai, 1992 .

Cumulative nature of two-wave mixing and its dependence on crystal orientation

J. Joseph, Kehar Singh, P. Pillai, 1991 .

Crystal orientation dependence of the SNR for signal beam amplification in photorefractive BaTiO3

Kehar Singh, Joby Joseph, P.K.C. Pillai, 1991 .

Spatial amplification via photorefractive two-beam coupling; real-time image processing using controllable erasure of Fourier spectrum

Kehar Singh, Joby Joseph, J. Joseph, 1991 .

A novel way of noise reduction in image amplification by two-beam coupling in photorefractive BaTiO3 crystal

Kehar Singh, Joby Joseph, P.K.C. Pillai, 1990 .

Effect of optical activity on higher‐order self‐diffraction in absorptive photorefractive medium: Transmission geometry for two‐wave mixing

Kehar Singh, A. Roy, 1992 .

Phase image encryption in the fractional Hartley domain using Arnold transform and singular value decomposition

Kehar Singh, Phool Singh, A. K. Yadav, 2017 .

Modulation of a General Periodic Object with Triangular Transmission Profile by an Annular Aperture Using Incident Incoherent Light

P. K. Katti, K. Singh, Kehar Singh, 1969 .

Focusing of linearly-, and circularly polarized Gaussian background vortex beams by a high numerical aperture system afflicted with third-order astigmatism

P. Senthilkumaran, Kehar Singh, R. Singh, 2008 .

Focusing of a vortex carrying beam with Gaussian background by an apertured system in presence of coma

P. Senthilkumaran, Kehar Singh, R. Singh, 2008 .

Focusing of a vortex carrying beam with Gaussian background by a lens in the presence of spherical aberration and defocusing

P. Senthilkumaran, Kehar Singh, R. Singh, 2007 .

Electrosynthesis and photoelectroactivity of polycrystalline cadmium selenide films

Kehar Singh, D. N. Upadhyay, 1986 .

Effect of coma on the focusing of an apertured singular beam

P. Senthilkumaran, Kehar Singh, R. Singh, 2007 .

A new balanced modulation code for a phase-image-based holographic data storage system

Kehar Singh, Joby Joseph, Renu John, 2005 .

A non-zero order joint transform correlator for space-variant pattern recognition

G. Unnikrishnan, J. Joseph, Kehar Singh, 1999 .

Sources of family income and their effects on family income inequality: a study of fish farmers in Tripura, India

Kehar Singh, M. Dey, 2010, Food Security.

Improved data search by zero-order (dc) peak filtering in a defocused volume holographic content-addressable memory.

Kehar Singh, Joby Joseph, Bhargab Das, 2009, Applied optics.

RELIABLE CONTENT SEARCHING WITH BEAM CONDITIONING TECHNIQUES IN VOLUME HOLOGRAPHIC DATA STORAGE SYSTEMS

J. Joseph, Kehar Singh, Bhargab Das, 2009 .

Reliability of Content-addressable Search in a Defocused Volume Holographic Data Storage System

J. Joseph, Kehar Singh, Bhargab Das, 2009 .

Effect of primary coma on the focusing of a Laguerre–Gaussian beam by a high numerical aperture system; vectorial diffraction theory

P. Senthilkumaran, Kehar Singh, R. Singh, 2008 .

Relativistic laser harmonic generation from plasmas with density ripple

Kehar Singh, V. Tripathi, V. Gupta, 2003 .

Measurement of three-dimensional rigid body motion by multiple exposure speckle photography: use of uncollimated beam illumination in free space geometry

Kehar Singh, Atul Kumar, Atul Kumar, 1992 .

Measurement of tilt of a diffuse object by double-exposure speckle photography using speckle fanning in a photorefractive BaTiO3 crystal

Arvind Kumar, Kehar Singh, K. S. Dharmsaktu, 2001 .

Tight focusing of vortex beams in presence of primary astigmatism.

P. Senthilkumaran, Kehar Singh, R. Singh, 2009, Journal of the Optical Society of America. A, Optics, image science, and vision.

The effect of astigmatism on the diffraction of a vortex carrying beam with a Gaussian background

P. Senthilkumaran, Kehar Singh, R. Singh, 2007 .

Economics and Determinants of Fish Production and Its Effects on Family Income Inequality in West Tripura District of Tripura

Kehar Singh, 2007 .

Tight focusing of linearly and circularly polarized vortex beams; effect of third-order spherical aberration

P. Senthilkumaran, Kehar Singh, R. Singh, 2009 .

Isolation and Characterization of Coliform Bacteria and Bacteriophages from Ganga River in Northern Himalayan Regions

Kehar Singh, C. Awasthi, A. Dimri, 2019, International Journal of Current Microbiology and Applied Sciences.

Studies on photoelectrochemical conversion t

Kehar Singh, Mishra, S. S, 2022 .

Study of laser speckles in the presence of spherical aberration

Kehar Singh, R. Bahuguna, K. K. Gupta, 1979 .

Decomposition of Economic Efficiency under Risk into Technical and Allocative Risks: A Study on Fish Production in South Tripura District, Tripura, India

Kehar Singh, 2005 .

A comparison of two agroforestry systems for soil, water and nutrient conservation on degraded land

Kehar Singh, M. Juneja, Savita Singh, 1994 .

Effects of Cross-polarization Coupling in DFWM in Photorefractive Compound Semiconductor Crystals: Transmission Geometry

Kehar Singh, A. Roy, K. Singh, 1991 .

Permeation Studies on Binary Liquid Mixtures of Acetone with Benzene & Chloroform

Kehar Singh, M. Pandey, 1988 .

Photoelectrochemical studies on galvanostatically formed cadmium selenide films using mixed solvents

Kehar Singh, Sanak Mishra, 2000 .

Electrokinetic studies on ion-exchange membranes. I. Transport of nonaqueous and mixed solvents

R. P. Rastogi, Kehar Singh, J. Singh, 1975 .

Price transmission among different Atlantic salmon products in the U.S. import market

Kehar Singh, 2016 .

Price Transmission in Thai Aquaculture Product Markets: An Analysis Along Value Chain and Across Species

Kehar Singh, M. Dey, Umesh Bastola, 2015 .

Electrosynthesis and impedance studies on zinc selenide

R. Pathak, Kehar Singh, 1994 .

Electrokinetic studies on ion-exchange membranes. 5. Streaming potentials

R. P. Rastogi, Kehar Singh, Raj Kumar, 1977 .

Love waves propagated in an axially symmetric heterogeneous layer lying between two homogeneous halfspaces

Kehar Singh, 1967 .

Price Transmission Relationships along the Seafood Value Chain in Bangladesh: Aquaculture and Capture Fisheries

Kehar Singh, M. Dey, Md. Ferdous Alam, 2015 .

An Error Corrected Almost Ideal Demand System for Crustaceans in the United States

Kehar Singh, M. Dey, G. Thapa, 2011 .

Structure of a tightly focused vortex beam in the presence of primary coma

P. Senthilkumaran, Kehar Singh, R. Singh, 2009 .

Effect of primary spherical aberration on high-numerical-aperture focusing of a Laguerre-Gaussian beam.

Kehar Singh, Rakesh Kumar Singh, P. Senthilkumaran, 2008, Journal of the Optical Society of America. A, Optics, image science, and vision.

PERMEATION STUDIES ON SUPPORTED LECITHIN LIQUID MEMBRANES

Kehar Singh, V. Shahi, 1991 .

Studies on the characterization of cholesterol liquid membrane

Kehar Singh, A. Tiwari, 1987 .

Membrane potential studies on cholesterol liquid membranes

Kehar Singh, Kehar Singh, Ajit Tiwari, 1987 .

Studies on electroosmotic and electrophoretic behavior of cholesterol in aqueous solutions

R. P. Rastogi, Kehar Singh, R. Shabd, 1981 .

Tight Focusing of Optical Beams; A Review - Part 1

Kehar Singh, P. Senthilkumaran, Rakesh Singh, 2008 .

Love waves due to a point source in an axially symmetric heterogeneous layer between two homogeneous halfspaces

Kehar Singh, 1969 .

Thermo-osmosis and electro-osmosis of water and electrophoresis of suspensions in water

R. P. Rastogi, Kehar Singh, B. Misra, 1967 .

A technique for image encryption using digital signature

Aloka Sinha, Kehar Singh, A. Sinha, 2003 .

Performance of sorghum (Sorghum bicolor)+legumes intercropping under different planting geometries and nitrogen levels.

Kehar Singh, J. Balyan, 2000 .

Electrokinetic studies on ion-exchange membranes

R. P. Rastogi, Kehar Singh, Raj Kumar, 1977 .

Studies on electrochemical characterization of ion selective cellulose acetate membranes with and without a lecithin liquid membrane

Kehar Singh, V. Shahi, 1990 .

Studies on Electroactivity of Anion Exchange Alumina Membrane Supported on a Polyvinylidene Fluoride Matrix

Kehar Singh, J. Rai, A. Tiwari, 1985 .

Membrane potential and solute separation studies on zirconium phosphate membranes

Kehar Singh, Archana Singh, 1993 .

Pattern discrimination using a bank of wavelet filters in a joint transform correlator

Kehar Singh, Renu Tripathi, R. Tripathi, 1998 .

Soil profile gravel concentration and its effect on rainfed crop yields

Kehar Singh, S. Grewal, S. Dyal, 2005, Plant and Soil.

Profitability and financial viability of mango and kinnow plantations in Himachal Pradesh

Kehar Singh, Sanjay Kumar, 2003 .

Out-of-plane displacement measurement by using speckle fanning in a photorefractive BaTiO3 crystal

Arvind Kumar, Kehar Singh, K. S. Dharmsaktu, 2001 .

Analysis of a Demand System for Unbreaded Frozen Seafood in the United States Using Store-level Scanner Data

Kehar Singh, M. Dey, Prasanna Surathkal, 2012, Marine Resource Economics.

Electrosynthesis and photoelectroactivity of polycrystalline p‐zinc selenide

Kehar Singh, J. Rai, 1987 .

Logarithms-based RGB image encryption in the fractional Fourier domain : A non-linear approach

Chandra Shakher, Madhusudan Joshi, Kehar Singh, 2009 .

The purple membrane and solar energy conversion

Kehar Singh, S. Caplan, 1980 .

Photoelectrochemical studies on galvanostatically formed multiple band gap materials based on CdSe and ZnSe

Kehar Singh, S. Mishra, 2002 .

Electrodeposition of (ZnSe:colloidal HgS) composite and their photoelectrochemical characterization

Kehar Singh, S. Mishra, 2009 .

Electrochemical deposition and photoelectrochemical characterization of colloidal HgS containing CdSe composites

Kehar Singh, S. Mishra, M. Srivastava, 2006 .

Double Random Phase Encoding Based Optical Encryption Systems Using Some Linear Canonical Transforms: Weaknesses and Countermeasures

Pramod Kumar, Kehar Singh, Joby Joseph, 2016 .

Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain

Kehar Singh, Hukum Singh, Sunanda Vashisth, 2015 .

Watermarking in gyrator domain using an asymmetric cryptosystem

Kehar Singh, A. K. Yadav, Sunanda Vashisth, 2015, Other Conferences.

A phase-image watermarking scheme in gyrator domain using devil's vortex Fresnel lens as a phase mask

Kehar Singh, Hukum Singh, A. K. Yadav, 2015 .

Double phase-image encryption using gyrator transforms, and structured phase mask in the frequency plane

Kehar Singh, Hukum Singh, A. K. Yadav, 2015 .

Known-Plaintext Attack on Cryptosystem Based on Fractional Hartley Transform Using Particle Swarm Optimization Algorithm

Aneeta Yadav, Phool Singh, Kehar Singh, 2018, Engineering Vibration, Communication and Information Processing.

Image encryption using fractional Mellin transform, structured phase filters, and phase retrieval

Kehar Singh, Hukum Singh, A. K. Yadav, 2014 .

Double random fractional Fourier domain encoding for optical security

Kehar Singh, G. Unnikrishnan, G. Unnikrishnan, 2000 .

Fully phase image encryption using double random-structured phase masks in gyrator domain.

Kehar Singh, Hukum Singh, Sunanda Vashisth, 2014, Applied optics.

Vulnerability of the security enhanced double random phase-amplitude encryption scheme to point spread function attack

Pramod Kumar, Arvind Kumar, Kehar Singh, 2012 .

Discrimination-sensitive rotation-invariant joint-transform correlator using gradient preprocessing and circular harmonic components

Kehar Singh, G. S. Pati, G. Pati, 1998 .

Experimental and simulation studies on the performance of binary and gray-valued joint transform correlators under poor illumination conditions and nonoverlapping background noise

Kehar Singh, G. S. Pati, G. Pati, 1997 .

DETERMINANTS OF CATFISH, BASA AND TRA IMPORTATION INTO THE USA: AN APPLICATION OF AN AUGMENTED GRAVITY MODEL

Kehar Singh, M. Dey, A. Rabbani, 2011 .

Evolving limitations in K-means algorithm in data mining and their removal

Dimple Malik, Kehar Singh, Naveen Kumar Sharma, 2011 .

Devil’s Vortex Phase Structure as Frequency Plane Mask for Image Encryption Using the Fractional Mellin Transform

Kehar Singh, Hukum Singh, A. K. Yadav, 2014 .

INTERNATIONAL COMPETITIVENESS OF CATFISH IN THE U.S. MARKET: A CONSTANT MARKET SHARE ANALYSIS

Kehar Singh, M. Dey, 2011 .

Pattern discrimination using wavelet filters in a photorefractive joint-transform correlator

Kehar Singh, Renu Tripathi, Joby Joseph, 1997 .

Seasonal and Spatial Variations in Demand for and Elasticities of Fish Products in the United States: An Analysis Based on Market-Level Scanner Data

Kehar Singh, M. Dey, Prasanna Surathkal, 2014 .

Technical Efficiency of Freshwater Aquaculture and its Determinants in Tripura, India

Pratheesh O. Sudhakaran, Kehar Singh, M. Dey, 2009 .

Focusing of a singular beam in the presence of spherical aberration and defocusing

P. Senthilkumaran, Kehar Singh, R. Singh, 2008 .

Influence of astigmatism and defocusing on the focusing of a singular beam

P. Senthilkumaran, Kehar Singh, R. Singh, 2007 .

Formation of all fourteen Bravais lattices of three-dimensional photonic crystal structures by a dual beam multiple-exposure holographic technique.

J. Joseph, Kehar Singh, J. Xavier, 2008, Applied Optics.

Hologram interferometry of vibrations represented by the square of a Jacobian elliptic function

Kehar Singh, P. Gupta, P. C. Gupta, 1976 .

Stability improvement in bleached phase holograms

Kehar Singh, S. Kumar, 1991 .

Bleached phase holograms exposed on Agfa-Gevaert 10E75 NAH plates

Kehar Singh, S. Kumar, 1991 .

Recognition and classification of three-dimensional phase objects by digital Fresnel holography.

Kehar Singh, Joby Joseph, Anith Nelleri, 2006, Applied optics.

Shock wave attenuation using sandwiched structures made up of polymer foams and shear thickening fluid

Kehar Singh, Subrata Chakraborty, Sachin Jalwal, 2023, Journal of Mechanical Science and Technology.

SH Waves in a Transversely Isotropic Medium – III Transradially Isotropic Sphere

R. Sato, Kehar Singh, E. R. Lapwood, 1971 .

Consumer demand for frozen seafood product categories in the United States

Kehar Singh, M. Dey, Prasanna Surathkal, 2017 .

Break-even analysis for a green crab fishery in PEI, Canada

Kehar Singh, S. St-Hilaire, Luke A. Poirier, 2016 .

Comparison of Station Errors in Seismology

H. Jeffreys, Kehar Singh, 1973 .

Nonlinear image authentication algorithm based on double fractional Mellin domain

Sachin, Phool Singh, Kehar Singh, 2023, Nonlinear Dynamics.

Impulse attack free double-random-phase encryption scheme with randomized lens-phase functions.

Arvind Kumar, Kehar Singh, Joby Joseph, 2009, Optics letters.

Fully phase encryption using digital holography

Kehar Singh, Joby Joseph, Naveen Kumar Nishchal, 2004 .

Phase-image-based content-addressable holographic data storage with security

Kehar Singh, Joby Joseph, Renu John, 2005 .

Fully phase encryption using fractional Fourier transform

Kehar Singh, Joby Joseph, Naveen Kumar Nishchal, 2003 .

Optical Cryptography and Watermarking Using Some Fractional Canonical Transforms, and Structured Masks

Kehar Singh, Hukum Singh, Sunanda Vashisth, 2015 .

Color image encryption and decryption using fractional Fourier transform

Madhusudan Joshi, Kehar Singh, Chandrashakher, 2007 .

Optical encryption using quadratic phase systems

Kehar Singh, G. Unnikrishnan, G. Unnikrishnan, 2001 .

Studies on mixed membrane potentials

Kehar Singh, C. Dwivedi, A. Tiwari, 2000 .

Electrodriven solute transport studies on an impregnated zirconium phosphate membrane

Kehar Singh, Archana Singh, 1995 .

Prospects of Agricultural Exports of India: A Composite Index Approach

Kehar Singh, I. Sain, 2019 .

Rainwater conservation and use by an energy plantation of Eucalyptus tereticornis and rainfed field crops in North India.

Kehar Singh, M. Juneja, S. Grewal, 1994 .

Optical image encryption based on interference under convergent random illumination

Pramod Kumar, Kehar Singh, Joby Joseph, 2010 .

Farm Specific Economic Efficiency of Fish Production in South Tripura District: A Stochastic Frontier Approach

Kehar Singh, 2008 .

Farm-level returns and costs of yellow catfish (Pelteobagrus fulvidraco) aquaculture in Guangdong and Zhejiang provinces, China.

Kehar Singh, I. Gardner, S. St-Hilaire, 2016 .

Electrosynthesis and photoelectroactivity of polycrystallinep-zinc selenide

Kehar Singh, J. Rai, 1988 .

Optical transfer function of an optical system with a vortex phase mask in the presence of primary aberrations

P. Senthilkumaran, Kehar Singh, R. Singh, 2010 .

Relative and Marginal Effects of Fish Production on Family Income Inequality in Tripura: Decomposition of Gini by Income Sources

Kehar Singh, 2006 .

Holographic digital data storage using phase-modulated pixels

Kehar Singh, Joby Joseph, Renu John, 2005 .

Transmission profile of a Fabry-Perot interferometer suffering from asymmetric surface defects

B. N. Gupta, G. Bhatnagar, Kehar Singh, 1974 .

Fully phase image encryption using double random-structured phase masks in gyrator domain.

Kehar Singh, Hukum Singh, Sunanda Vashisth, 2014, Applied optics.

Intensity distribution in the focal plane of a lens illuminated by Fresnel diffraction of a singular beam; Effect of spherical aberration and defocusing

Kehar Singh, R. Singh, 2005 .

Optical encryption system using a spatial light modulator

Kehar Singh, Joby Joseph, G. Unnikrishnan, 1999, Other Conferences.

Non-zero-order joint transform correlator using random phase function in the input plane

Kehar Singh, Joby Joseph, G. Unnikrishnan, 1999, Other Conferences.

Electrical transport in presence of temperature gradient

Kehar Singh, R. Rastogi, R. Blokhra, 1963 .

Neural network based face recognition by using diffraction pattern sampling with a digital ring–wedge detector

Kehar Singh, Dinesh Ganotra, Joby Joseph, 2002 .

Color image encryption using affine transform in fractional Hartley domain

Phool Singh, A. K. Yadav, Kehar Singh, 2017 .

Color image encryption and decryption for twin images in fractional Fourier domain

Madhusudan Joshi, Kehar Singh, Chandrashakher, 2008 .

Optical encryption by double-random phase encoding in the fractional Fourier domain.

G. Unnikrishnan, J. Joseph, K. Singh, 2000, Optics letters.

Partial Differential Equations for Engineers and Scientists

J. N. Sharma, Kehar Singh, Kehar Singh, 2000 .

Photorefractive correlators for optical pattern recognition and object motion measurement: some improved techniques

Kehar Singh, Renu Tripathi, R. Tripathi, 1999, Other Conferences.