A5007268230- Advanced Steganography and Watermarking Techniques
- Chaos-based Image/Signal Encryption
- Digital Media Forensic Detection
- Visual Attention and Saliency Detection
- Optical Coatings and Gratings
- Computer Graphics and Visualization Techniques
- Image and Video Quality Assessment
- Photonic and Optical Devices
- Embedded Systems Design Techniques
- Transportation Planning and Optimization
- Diamond and Carbon-based Materials Research
- Advanced Image and Video Retrieval Techniques
- Advanced Fiber Optic Sensors
- Phase-change materials and chalcogenides
- Video Coding and Compression Technologies
- Liquid Crystal Research Advancements
- Quantum-Dot Cellular Automata
- Metal and Thin Film Mechanics
- Quantum Computing Algorithms and Architecture
- Vehicle License Plate Recognition
- IoT and Edge/Fog Computing
- Parallel Computing and Optimization Techniques
- Physical Unclonable Functions (PUFs) and Hardware Security
- Blockchain Technology Applications and Security
- TiO2 Photocatalysis and Solar Cells
Goldman Sachs (United States)
2024
Massachusetts Institute of Technology
2020
Indian Institute of Technology Madras
2020
Jadavpur University
1991-2011
CSIR National Physical Laboratory of India
1988-2010
University of Calcutta
1983-2008
National Physical Laboratory
1998-2006
National Research Centre on Yak
2005
University of Alberta
1998-2002
Indian Institute of Science Bangalore
1991
ABSTRACT Perceptual watermarking should always take full advantage of the results from human visual system (HVS) studies. Based upon saliency's modulation effect which incorporates attention's influence on sensitivity, this paper proposes an integrated saliency modulated HVS model guided least significant bit (LSB) approach for copyright protection. The proposed algorithm can embed more information into visually non-belligerent areas within host image, determined by attention model. region...
Digital domain is today's most preferred area for data processing and transmission. In case of augmentation or authorized replication, copyright protection has become an exigent challenge. watermarking a conventional procedure to serve this purpose. Here spatial image scheme developed through pixel based saliency map where the inadequate nature human visual system utilized. The experimental results brief assessment with some existing frameworks confirm that proposed not only makes...
Omni-directional sensors are useful in obtaining a 360/spl deg/ field of view with single lens camera. At present, for inspecting the interior pipes (used industrial processes) fish-eye type lenses being used. However, provide more detail on empty center part pipe and less surface near This problem can be resolved by using an omni-directional camera, which projects cylindrical strip to CCD device. A description hardware developed experimental results presented.
Age progression is generally indicated by skin texture. The texture changes with age of a person. This paper provides technique to estimate the person analysis wrinkle on face images. Wrinkle areas are detected and features extracted from image. Based feature values each image clustered using fuzzy c-means. Each assigned cluster based its maximum membership value. estimation done their average ages cluster. Total 20 images taken for training system 120 tested. obtained results significant...
A simple method is proposed for studying the spectral response of a first-order waveguide grating filter with random fluctuations in period grating. The can be applied to any groove shape, and it used study effect both systematic variations other parameters numerical calculations using this model are carry out, but may time-consuming some cases. Results presented filters rectangular triangular grooves.
Calotropis procera has been widely used in the Indian traditional medicinal system for treatment of a variety disease conditions. Earlier studies our laboratory revealed that chloroform fraction C. root extract possesses significant analgesic, antipyretic and antiinflammatory activity. Further also that, unlike NSAIDs, simultaneously antiulcer It is well established NSAIDs are potentially ulcerogenic they exert their activity following inhibition prostaglandin synthesis (owing to blockade...
A study of second- and higher-order waveguide grating filters is considerably complicated by the fact that coupling between guided waves radiated has to be taken into account. In this paper, we review theoretical calculations spectral response these have been reported several authors present a new approach based on use Green's functions structure. Excellent agreement found results our method calculation other, more rigorous but much complicated, methods. The function thus reasonably simple...
The proliferation of the digitized media introduces an exigent problem security in multimedia data transmission network surroundings. Consequently, digital watermark technique needs to be incorporated a rights management framework address different aspects content management. objective is develop low power, real time, reliable and secure hiding system that can achieved all way through hardware implementation. As attempt towards power efficient system, here we present oblivious, spatial...
In this paper, a saliency-based digital watermarking system which employs higher degree security by means of Symmetric Key Cryptography is proposed. The projected algorithm can implant more information into less perceptive areas within the original image determined saliency map. scheme helps to detect regions that have better data hiding capacity an image. locations with perceptibility specifies most insignificant location from view visibility image, so any alteration these will be apparent...
Abstract The methanol fraction of the extract Pluchea indica roots exhibited significant hepatoprotective activity against experimentally induced hepatotoxicity by carbon tetrachloride in rats and mice. caused reduction elevated serum enzyme levels (AST, ALT, LDH alkaline phosphatase) bilirubin content acute liver injury. A increase reduced total protein, albumin albumin/globulin ratio was also observed on treatment. significantly prolonged pentobarbitone‐induced sleeping time a plasma...
Biochemical, histopathological and ultrastructural changes occurring at different time points after intraperitoneal administration of a single dose pulegone (300 mg/kg) were studied. Significant decreases in the level liver microsomal cytochrome P‐450 (67%), heme (37%), aminopyrine N‐demethylase (60%) glucose‐6‐phosphatase (58%), noticed 24 hr treatment. Alanine amino transferase (ALT) levels increased dependent manner, following exposure rats to pulegone. Light microscopic studies tissues...