Considerable attention has been directed to the problem of producing high-resolution video and still images from multiple low-resolution images. This multiframe reconstruction, also known as super-resolution reconstruction, is beginning to be applied to compressed video. Super-resolution techniques that have been designed for raw (i.e., uncompressed) video may not be effective when applied to compressed video because they do not incorporate the compression process into their models. The compression process introduces quantization error, which is the dominant source of error in some cases. In this paper, we propose a stochastic framework where quantization information as well as other statistical information about additive noise and image prior can be utilized effectively.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1109/tip.2003.819221 | DOI Listing |
Environ Sci Pollut Res Int
January 2025
Department of Mechanical Engineering, SBM College of Engineering & Technology, Dindigul, 624 005, Tamil Nadu, India.
To mitigate the exhaustion of hydrocarbon fuels and the rise of pollutants, one can use biofuels in diesel engines for power generation. This study examines the possibility of enhancing the performance and reducing the pollutions of a compressed ignition engine using methyl ester made from cotton silk seed oil. This study aimed to assess the energy, energy efficiency, and emissions (3E) of the Kirloskar engine operating at 1800 rpm.
View Article and Find Full Text PDFJ Opt Soc Am A Opt Image Sci Vis
August 2024
Compressed ultrafast photography (CUP) is a high-speed imaging technique with a frame rate of up to ten trillion frames per second (fps) and a sequence depth of hundreds of frames. This technique is a powerful tool for investigating ultrafast processes. However, since the reconstruction process is an ill-posed problem, the image reconstruction will be more difficult with the increase of the number of reconstruction frames and the number of pixels of each reconstruction frame.
View Article and Find Full Text PDFJ Voice
January 2025
Clínica Santa María, Santiago, Chile.
Purpose: The present study aims at exploring the effect of pitch, loudness, vowel, and voice condition on supraglottic activity among female participants with voice disorders and among female participants with normal voices.
Methods: Forty-four volunteers were recruited. Inclusion criteria for the dysphonic group were: 1) age between 20 and 50 years, 2) reporting at least 1 year-long history of voice problems, 3) moderate or severe dysphonia.
J Clin Med
January 2025
Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via Alberto Savinio 54B, 87036 Rende, Italy.
: Dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) is widely recognized as a critical intervention that significantly reduces no-flow time, improving survival rates in out-of-hospital cardiac arrests (OHCAs). This study evaluates current practices and the organization of DA-CPR in Italian emergency medical communication centers (EMCCs) and identifies areas for improvement. A cross-sectional survey was conducted between April and May 2024 among all Italian EMCCs, achieving a 92.
View Article and Find Full Text PDFEntropy (Basel)
January 2025
Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China.
Arbitrary translational Six Degrees of Freedom (6DoF) video represents a transitional stage towards immersive terminal videos, allowing users to freely switch viewpoints for a 3D scene experience. However, the increased freedom of movement introduces new distortions that significantly impact human visual perception quality. Therefore, it is crucial to explore quality assessment (QA) to validate its application feasibility.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!