Results 81 to 90 of about 1,535 (206)

Reversible watermarking scheme with image-independent embedding capacity [PDF]

open access: yes
Permanent distortion is one of the main drawbacks of all the irreversible watermarking schemes. Attempts to recover the original signal after the signal passing the authentication process are being made starting just a few years ago. Some common problems,
Li, Chang-Tsun
core  

Steganalytic Methods for the Detection of Histogram Shifting Data Hiding Schemes

open access: yes, 2012
Peer-reviewedIn this paper, several steganalytic techniques designed to detect the existence of hidden messages using histogram shifting schemes are presented.
Lerch Hostalot, Daniel   +1 more
core  

Lossless passive soft-switching methods for inverters and amplifiers

open access: yes, 2000
This paper proposes lossless passive soft-switching methods for inverters developed from a synthesis procedure applicable to all pulsewidth modulation (PWM) converters.
Smith, K. Mark, Smedley, Keyue Ma
core   +1 more source

A New High Capacity Separable Reversible Data Hiding in Encrypted Images Based on Block Selection and Block-Level Encryption

open access: yesIEEE Access, 2019
Reversible data hiding in encrypted image (RDHEI) is a technology that can simultaneously implement privacy protection and reversible information hiding. For RDHEI, the main problem is the conflict between embedding capacity and real reversibility.
Yaomin Wang, Zhanchuan Cai, Wenguang He
doaj   +1 more source

An image multiresolution representation for lossless and lossy compression

open access: yes, 2015
We propose a new image multiresolution transform that is suited for both lossless (reversible) and lossy compression. The new transformation is similar to the subband decomposition, but can be computed with only integer addition and bit-shift operations.
Said, A, Pearlman, WA
core   +1 more source

Novel High Step-Up DC–DC Converter with Three-Winding-Coupled-Inductors and Its Derivatives for a Distributed Generation System

open access: yesEnergies, 2018
A novel step-up DC-DC converter with a three-winding-coupled-inductor which integrates a coupled-inductor and voltage-boost techniques for a distributed generation system is proposed in this paper.
Yanying Gao, Hongchen Liu, Jian Ai
doaj   +1 more source

Survey of techniques for lossless compression of signals

open access: yes, 1994
Lossless compression of signals is of interest in a wide variety of fields such as geophysics, telemetry, non-destructive evaluation and medical imaging, where vast amounts of data must be transmitted or stored, and exact recovery of the original data is
Mikhael, Wasfy B., Berg, Albert P.
core  

Secured Telemedicine Using Whole Image as Watermark with Tamper Localization and Recovery Capabilities [PDF]

open access: yes, 2015
Region of interest (ROI) is the most informative part of a medical image and mostly has been used as a major part of watermark. Various shapes ROIs selection have been reported in region-based watermarking techniques. In region-based watermarking schemes
Mushtaq, Ali   +3 more
core   +1 more source

Low complexity lossless compression of underwater sound recordings [PDF]

open access: yes, 2013
Author Posting. © Acoustical Society of America, 2013. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Partan, James W.   +2 more
core   +1 more source

Lossless Recovery of a VQ Index Table with Embedded Secret Data

open access: yes, 2009
[[abstract]]This paper proposes a reversible data embedding scheme based on a VQ image compression technique which emphasizes that the original VQ compressed codes can be recovered after data extraction.
Chang, C. C. ; Wu, W. C. ; Hu, Y. C.
core  

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