Results 131 to 140 of about 640,096 (345)

Quantization Noise Reduction in Block-Coded Video Using the Characteristics of Block Boundary Area [PDF]

open access: bronze, 2005
Kee-Koo Kwon   +4 more
openalex   +1 more source

Polydiacetylene‐Crosslinked Oligosiloxanes for Dual‐Mode Temperature Sensing

open access: yesAdvanced Materials Technologies, EarlyView.
This work combines polydiacetylenes with oligosiloxanes for enhanced solubility and processability. The hybrid material showcases reversible thermochromism (25–47 °C) and dual‐mode temperature sensing via color shifts and capacitance changes. With improved properties, this work paves the way for scalable optoelectronic flexible and conformable sensors.
Fatemeh Motaghedi   +7 more
wiley   +1 more source

MULDE: Multiscale Log-Density Estimation via Denoising Score Matching for Video Anomaly Detection [PDF]

open access: yesarXiv
We propose a novel approach to video anomaly detection: we treat feature vectors extracted from videos as realizations of a random variable with a fixed distribution and model this distribution with a neural network. This lets us estimate the likelihood of test videos and detect video anomalies by thresholding the likelihood estimates.
arxiv  

Inserting Videos into Videos [PDF]

open access: yesarXiv, 2019
In this paper, we introduce a new problem of manipulating a given video by inserting other videos into it. Our main task is, given an object video and a scene video, to insert the object video at a user-specified location in the scene video so that the resulting video looks realistic.
arxiv  

Video forgery detection using correlation of noise residue [PDF]

open access: green, 2008
Chih–Chung Hsu   +3 more
openalex   +1 more source

Evaporation‐Enhanced Redox Cycling for Rapid Detection of Attomolar SARS‐CoV‐2 Virions Using Nanolithography‐Free Electrochemical Devices

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents microfabricated electrochemical sensors for detecting ultralow viral particles counts through evaporation‐enhanced redox cycling (E2RC). To achieve sub‐micrometer gap in interdigitated microelectrodes, a scalable, nanolithography‐free fabrication method is developed.
Pouya Soltan Khamsi   +2 more
wiley   +1 more source

Comparison of cinepak, intel, microsoft video and indeo codec for video compression [PDF]

open access: yesThe International Journal of Multimedia and Its Applications (IJMA), Volume 7, Number 6 December 2015, 2016
The file size and picture quality are factors to be considered for streaming, storage and transmitting videos over networks. This work compares Cinepak, Intel, Microsoft Video and Indeo Codec for video compression. The peak signal to noise ratio is used to compare the quality of such video compressed using AVI codecs.
arxiv  

Streamlined Inkjet‐Printing of Stretchable Organic Photodetectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work introduces stretchable photodetectors fully inkjet‐printed on stretchable substrates. It is demonstrated that printed stiff platforms effectively decouple strain from the stretched substrate and serve as a chemically resistant and mechanically rigid platform.
Mervin Seiberlich   +9 more
wiley   +1 more source

BEST FIT MODELS TEST FOR THE VIRTUAL CHANNEL IN DISTRIBUTED VIDEO CODING [PDF]

open access: yesJournal of Engineering Science and Technology, 2011
Wyner-Ziv (WZ) video coding – a particular case of distributed video coding (DVC) – is a new video coding paradigm based on two major Information Theory results: the Slepian-Wolf and Wyner-Ziv theorems.
A. ELAMIN, VARUN JEOTI, SAMIR BELHOUARI
doaj  

Video Diffusion Models are Strong Video Inpainter [PDF]

open access: yesarXiv
Propagation-based video inpainting using optical flow at the pixel or feature level has recently garnered significant attention. However, it has limitations such as the inaccuracy of optical flow prediction and the propagation of noise over time. These issues result in non-uniform noise and time consistency problems throughout the video, which are ...
arxiv  

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