Browsing Journal Articles by Title

Now showing items 62-81 of 157

Facial expressions in American sign language: Tracking and recognition

Nguyena, Tan Dat; Ranganath, Surendra (Elsevier, 2012-05)

This paper presents work towards recognizing facial expressions that are used in sign language communication. Facial features are tracked to effectively capture temporal visual cues on the signers' face during signing. ...
Fast and accurate lithography simulation using cluster analysis in resist model building

Kumar, Pardeep; Srinivasan, Babji; Mohapatra, Nihar Ranjan (SPIE, 2015-05)

As technology nodes continue to shrink, optical proximity correction (OPC) has become an integral part of mask design to improve the subwavelength printability. The success of lithography simulation to perform OPC on an ...
An FBG-based sensing glove to measure dynamic finger flexure with an angular resolution of 0.1� up to speeds of 80�/s

Jha, Chandan Kumar; Agarwal, Shivang; Chakraborty, Arup Lal; Shirpurkar, Chinmay (IEEE, 2019-06)

We demonstrate a fiber Bragg grating (FBG) sensor-based highly accurate instrumented glove that can measure finger flexure with an angular resolution of 0.1�. The sensing unit consists of an FBG that is very sensitive to ...
Fiber Bragg grating interrogation using wavelength modulated tunable distributed feedback lasers and a fiber-optic Mach–Zehnder interferometer

Roy, Anirban; Chakraborty, Arup Lal; Jha, Chandan Kumar (Optical Society of America, 2017-04)

This paper demonstrates a technique of high-resolution interrogation of two fiber Bragg gratings (FBGs) with flat-topped reflection spectra centered on 1649.55 nm and 1530.182 nm with narrow line width tunable semiconductor ...
Field deployment of a 4320-nm quantum cascade laser-based TDLS system to compare the background CO2 levels in Mt. Abu with foreground measurements in Gandhinagar, India

Roy, Anirban; Chawhan, Rohan S.; Chakraborty, Arup Lal (Society of Photo-optical Instrumentation Engineers, 2020-02)

We report on the design, development, and field deployment of a 10-mW, 4320-nm distributed-feedback quantum cascade laser-based tunable diode laser spectroscopy (TDLS) system in India for in situ measurement of atmospheric ...
First steps toward CNN based source classification of document images shared over messaging app

Joshi, Sharad; Saxena, Suraj; Khanna, Nitin (Elsevier, 2019-10)

Knowledge of source smartphone corresponding to a document image can be helpful in a variety of applications including copyright infringement, ownership attribution, leak identification, and usage restriction. In this work, ...
A force myography-based system for gait event detection in overground and ramp walking

Godiyal, Anoop Kant; Verma, Hemant Kumar; Khanna, Nitin; Joshi, Deepak (Institute of Electrical and Electronics Engineers, 2018-04)

In this paper, we present a novel method to determine the heel strike (HS) and toe-off (TO) during overground (OG) and ramp walking, including the transition. The method utilizes force myography (FMG) signals from thighs ...
A framework for efficient information aggregation in smart grid

Joshi, Amit; Das, Laya; Natarajan, Balasubramaniam; Srinivasan, Babji (IEEE, 2019-04)

The two-way communication of information between agents in the smart grid, while making way for better monitoring and control, comes at the cost of elevated communication traffic. Compressive sensing is a technique that ...
Frequency estimation techniques in capacitance-to-frequency conversion measurement

Tyagi, Tushar; Sumathi, P. (AIP Publishing, 2020-01)

The process of capacitance measurement consists of converting the capacitance under measurement into a secondary variable such as voltage, time-period, and frequency. This paper lays special focus on the capacitance-frequency ...
Fuzzy Logic Based Control for Parallel Cascade Control

Murthy, K.V.V.; Karthikeyan, Rangaswamy; Manickavasagam, K. (International Journal on Automatic Control and System Engineering (ICGST-ACSE), 2010-12)

In chemical industries parallel cascade controllers are used to improve the dynamic performance of a control system. Cascade controllers has two controllers, primary and secondary controllers in cascade. In this paper, a ...
Gaze-sensitive virtual reality based social communication platform for individuals with autism

Krishnappa Babu, Pradeep Raj; Oza, Poojan; Lahiri, Uttama (IEEE, 2018-10)
A generalized maximum correntropy criterion based robust sparse adaptive room equalization

Kumar, Krishna; George, Nithin V. (Elsevier, 2020-01)

An adaptive room equalization scheme is usually employed to compensate for the distortion of sound produced by the room impulse response, thereby offering an improved listening experience. In a conventional adaptive room ...
Generalized spline nonlinear adaptive filters

Rathod, Milan; Patel, Vinal; George, Nithin V. (Elsevier, 2017-10)

A new nonlinear filter, which employs an adaptive spline function as the basis function is designed in this paper. The input signal to this filter is used to generate suitable parameters to update the control points in a ...
GPU acceleration of the KAZE image feature extraction algorithm

Ramkumar, B.; Laber, Rob; Bojinov, Hristo; Hegde, Ravi Sadananda (American Chemical Society, 2019-01)

GPU in comparison to nearly 2400 ms for a 16-threaded CPU version) without degradation in feature extraction performance, our work expands the applicability of the KAZE algorithm. Additionally, the strategies described ...
Hetro8T: power and area efficient approximate heterogeneous 8T SRAM for H.264 video decoder

Bharti, Pramod Kumar; Surana, Neelam; Mekie, Joycee (Institution of Engineering and Technology, 2019-11)

Wide-spread availability of high-speed INTERNET and rapid increase of smart-phone users have significantly increased online video surfing. Video decoders like H.264/H.265/MPEG consume a significant amount of power in Static ...
Highly sensitive refractive index sensors with plasmonic nanoantennas - utilization of optimal spectral detuning

Mesch, Martin; Weiss, Thomas; Schaferling, Martin; Hegde, Ravi S. (American Chemical Society, 2018-04)

We analyze and optimize the performance of coupled plasmonic nanoantennas for refractive index sensing. The investigated structure supports a sub- and a superradiant mode that originates in the weak coupling of a dipolar ...
Human-computer interaction based joint attention cues: implications on functional and physiological measures for children with autism spectrum disorder

Jyoti, Vishav; Lahiri, Uttama (Elsevier, 2019-10)

One of the important facets of effective social communication is Joint Attention (JA). However, children with Autism Spectrum Disorder (ASD) are often characterized by JA-related deficits, adversely affecting their social ...
A human-machine interface integrating low-cost sensors with a neuromuscular electrical stimulation system for post-stroke balance rehabilitation

Kumar, Deepesh; Dutta, Anirban; Lahiri, Uttama; Das, Abhijit (JOVE, 2016-04)

stroke is caused when an artery carrying blood from heart to an area in the brain bursts or a clot obstructs the blood flow to brain thereby preventing delivery of oxygen and nutrients. About half of the stroke survivors ...
A human-machine-interface integrating low-cost sensors with a neuromuscular electrical stimulation system for post-stroke balance rehabilitation

Kumar, Deepesh; Das, Abhijit; Lahiri, Uttama; Dutta, Anirban (JOVE, 2016-04)

A stroke is caused when an artery carrying blood from heart to an area in the brain bursts or a clot obstructs the blood flow to brain thereby preventing delivery of oxygen and nutrients. About half of the stroke survivors ...
Improved Control Strategy for Bidirectional Single Phase AC-DC Converter in Hybrid AC/DC Microgrid

Gundabathini, Rakesh; Pindoriya, Naran M. (Taylor & Francis, 2018-05)

This paper presents the improved control strategy with optimal switching scheme to improve the bidirectional converter's power flow control capability and to allow for different modes of operation in hybrid AC/DC microgrid. ...

Now showing items 62-81 of 157

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