Results 41 to 50 of about 378,062 (357)

Color-decoupled photo response non-uniformity for digital image forensics [PDF]

open access: yes, 2012
The last few years have seen the use of photo response non-uniformity noise (PRNU), a unique fingerprint of imaging sensors, in various digital forensic applications such as source device identification, content integrity verification and authentication.
Chang-Tsun Li   +3 more
core   +1 more source

Characterization for high dynamic range imaging

open access: yes, 2008
In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images,
Kim, M.H.   +5 more
core   +1 more source

Two improved forensic methods of detecting contrast enhancement in digital images [PDF]

open access: yes, 2014
Contrast enhancements, such as histogram equalization or gamma correction, are widely used by malicious attackers to conceal the cut-and-paste trails in doctored images.
Xufeng Lin   +5 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Aporetic Apparatus

open access: yesNordicom Review, 2016
In this article, we examine the epistemology of the camera today. In order to answer this question, we concentrate on three social and technological forms: the camera obscura, the photographic camera, and the digital camera.
Seppänen Janne, Herkman Juha
doaj   +1 more source

Source camera identification using enhanced sensor pattern noise

open access: yes, 2009
Sensor pattern noises (SPNs), extracted from digital images to serve as the fingerprints of imaging devices, have been proved as an effective way for digital device identification.
HASH(0x55a67fad9668)   +2 more
core   +1 more source

A reference estimator based on composite sensor pattern noise for source device identification [PDF]

open access: yes, 2014
It has been proved that Sensor Pattern Noise (SPN) can serve as an imaging device fingerprint for source camera identification. Reference SPN estimation is a very important procedure within the framework of this application.
Ruizhe Li   +5 more
core   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

open access: yesFEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada   +5 more
wiley   +1 more source

After price competition

open access: yesAnnals of Business Administrative Science, 2019
When a market grows and matures so that its product becomes commoditized, we can usually expect product prices to decline due to price competition. However, in the digital camera market, although prices started to decline after they first went on sale ...
Takeyasu Ichikohji
doaj   +1 more source

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