Results 141 to 150 of about 26,801 (192)

2D Discrete Wavelet Transformation (2D-DWT) for Nanoscale Morphological Analysis

Prabha Materials Science Letters, 2023
Digital image processing nowadays is widely used in various applications in micro to macro scale such as Nano-structure for medical, defense, natural resource management, security purposes. This article reviewed the 2-Dimensional Discrete Wavelet Transformation (2D-DWT) for morphological analysis of Scanning Electron Microscope (SEM) image of Ni-P-CNF ...
Kanishk Bhatt, Tushar Kumar, Suriaya Hassan, Sanjeev Kimothi   +3 more
openaire   +1 more source

DWT (discrete wavelet transform) based watermark system

2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300), 2003
In this paper a DWT (discrete wavelet transform) based watermarking system is proposed. The proposed embedding system changes coefficients. The extracting system rebuilds thresholds according to various attacks and decides a watermark bit from the least distorted coefficient. A new measure to detect the uniqueness of watermark is also proposed.
null Sang-Heun Oh, null Sung-Wook Park, null Byung-Jun Kim   +2 more
openaire   +1 more source

Image Fusion by Using Bi-Orthogonal Wavelets in Discrete Wavelet Transform (DWT) Domain

Journal of Remote Sensing GIS & Technology, 2022
Image fusion can be widely explained as merging more than one photograph or a few in their factors right into a single photo without the creation of distortion or lack of information. Image fusion pastimes mix complementary as properly as approximate statistics for greater than one photograph to create fused photo output.
A. Sahithi, N. Rama Murthy, P. Mounica, S. Praveena   +3 more
openaire   +1 more source

Image inpainting based on Discrete Wavelet Transform (DWT) technique

2016 Online International Conference on Green Engineering and Technologies (IC-GET), 2016
Sparse based inpainting method is proposed using Discrete Wavelet Transform (DWT) technique based on finding the region pixel, calculating pixel priority and normalizing the inpaint region boundary. The proposed method is used for removal of degraded or damaged part in an images, text removal, object or stamp removal.
Smit Trambadia, Hemant Mayatra
openaire   +1 more source

DECOMPOSITION OF SEIZURES IN EEG SIGNALS USING DISCRETE WAVELET TRANSFORMS (DWT)

INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH, 2021
An electroencephalogram (EEG) is a test that records electrical activity in the brain. Epileptic seizures affect approximately 50 million people worldwide, making it one of the most serious neurological disorders. Seizures cause a loss of consciousness, but there are no specic signs associated with epileptic seizures.
N Shweta, Nagendra H
openaire   +1 more source

An Area Efficient VLSI Architecture for 1-D and 2-D Discrete Wavelet Transform (DWT) and Inverse Discrete Wavelet Transform (IDWT)

2021 Devices for Integrated Circuit (DevIC), 2021
Several discrete wavelet transform architectures have already been introduced due to their wide range of applications in the field of image, video and speech signal processing. In this paper, an area efficient VLSI architecture for 2-dimensional discrete wavelet transform (DWT) and inverse discrete wavelet transform (IDWT) have been proposed ...
Jhilam Jana, Sayan Tripathi, Ritesh Sur Chowdhury, Akash Bhattacharya, Jaydeb Bhaumik   +4 more
openaire   +1 more source

Enhanced algorithm for QRS detection using discrete wavelet transform (DWT)

2015 27th International Conference on Microelectronics (ICM), 2015
This paper aims at the detection of QRS position from the ECG signal using wavelet coefficients. An enhanced algorithm has been proposed in this work in order to approve the performance of QRS detection. This algorithm is based on three level, namely detection of suspect QRS regions, the discarding of false detected regions and the extraction of the ...
Wissam Jenkal, Rachid Latif, Ahmed Toumanari, Azdine Dliou, Oussama El B'charri   +4 more
openaire   +1 more source

Ownership Identification using Discrete Wavelet Transform (DWT)-based LOGO Watermarking

Proceedings of the International Conference on Advances in Computer Science and Electronics Engineering, 2012
In this paper, an efficiently DWT-based watermarking technique is proposed to embed gray-scale logos as watermark in images to attest the owner identification and discourage the unauthorized copying. The method transforms both the host image and watermark into the discrete wavelet domain where their coefficients are fused adaptively based on Human ...
T Mita Kumari, Gayadhar Panda
openaire   +1 more source

Multibiometric Watermarking Technique Using Discrete Wavelet Transform (DWT)

2018
This chapter presents technical details and sparsity property of Discrete Wavelet Transform (DWT). The multibiometric watermarking technique using DWT is explained and analyzed in this chapter. The comparison of presented watermarking technique with existing watermarking techniques is also given in this chapter.
Rohit M. Thanki, Vedvyas J. Dwivedi, Komal R. Borisagar   +2 more
openaire   +1 more source

Power transformer protection based on transient detection using discrete wavelet transform (DWT)

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002
This paper addresses a new relaying scheme for power transformer protection. In principle, the new technique implements the wavelet transform to extract the transient components from the captured transform currents. The powerful function of a discrete wavelet transform (DWT) in analysing nonstatic signals is capable of extracting those predominant ...
F. Jiang, Z.Q. Bo, P.S.M. Chin, M.A. Redfern, Z. Chen   +4 more
openaire   +1 more source