Results 251 to 260 of about 715,216 (279)

Compression of color images using a hologram of gray tones

SPIE Proceedings, 2007
A strategy for to compress color images in digital holograms of gray tones was developed. The procedure codifies the information of each channel of the RGB model in a system of fringes, it is a gray image denominated "hologram". The fringes in their intensity of gray tone carry the signal of the channel, in this manner the amplitude information for ...
Alejandro Restrepo Martinez, Roman Castañeda   +1 more
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A generalized musical-tone generator with application to sound compression and synthesis

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002
A musical-tone generator based on physical modeling of sound production mechanisms is presented. For the purpose of making this scheme general for a wide class of musical instruments, the nonlinear part of the tone-generator is modeled by a neural network.
C. Drioli, ROCCHESSO, DAVIDE
openaire   +3 more sources

Discrimination of MP3-compressed musical instrument tones.

The Journal of the Acoustical Society of America, 2010
Eight musical instrument tones were compressed using an MP3 codec to determine how the detection of compressed sounds varies with bit-rate and instrument. Sounds with harmonically flattened frequencies were compressed with bit-rates of 32, 40, 48, 56, 64, 80, 96, 112, 128, and 160 kbps.
Lee, Chung, Horner, Andrew Brian
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Evaluation of algorithms for lossless compression of continuous-tone images

Journal of Electronic Imaging, 2002
Lossless image compression algorithms for continuous- tone images have received a great deal of attention in recent years. However, reports on benchmarking their performance have been limited. In this paper, we present a comparative study of the follow- ing algorithms: UNIX compress, gzip, LZW, Group 3, Group 4, JBIG, old lossless JPEG, JPEG-LS based ...
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A Proficient Algorithm for Compression and Storage of Two-Tone Image

Asian Journal of Computer Science and Technology, 2016
Since 1990s , there has be a swift, increase in computers, storage media and digital image taking devices, which enables a large number of digital information and store in computer readable formats. Image compression is an important issue in internet, mobile communication, digital library and other applications. Image compression refers to represent an
S. Selvam, S. Thabasu Kannan
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Deterministic selection of pilot tones for compressive estimation of MIMO-OFDM channels

2015 49th Annual Conference on Information Sciences and Systems (CISS), 2015
This paper addresses the problem of channel estimation in multiple-input and multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems for the case when the underlying multipath channel is approximately sparse in the angle-delay domain.
Zahra Shakeri, Waheed U. Bajwa
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The ISO/CCITT standard for continuous-tone image compression

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond, 2003
The ISO/CCITT Joint Photographic Experts Group is in the process of developing an international standard for general-purpose, continuous-tone still-image compression. A brief history is presented as background to a summary of the past year's progress, which was highlighted by definition of the overall structure of the proposed standard.
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Compressibility Effects in Airfoil Secondary Tones

AIAA Scitech 2021 Forum, 2021
Tulio Rodarte Ricciardi, William Wolf, Kunihiko Taira   +2 more
openaire   +1 more source

Efferent-induced change in human cochlear compression and its influence on masking of tones

Neuroscience Letters, 2010
Several lines of evidence suggest that medial olivocochlear (MOC) efferent neurons modify cochlear output to improve signal detection in noise. In animal models, stimulation of MOC efferents reduces the amount of compression in basilar membrane (BM) growth functions.
Shaum P, Bhagat, Paul H, Carter
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Effects of compression and onset/offset asynchronies on the detection of one tone in the presence of another

The Journal of the Acoustical Society of America, 2014
The weaker of two temporally overlapping complex tones can be easier to hear when the tones are asynchronous than when they are synchronous. This study explored how the use of fast and slow five-channel amplitude compression, as might be used in hearing aids, affected the ability to use onset and offset asynchronies to detect one (signal) complex tone ...
Sara M K, Madsen, Brian C J, Moore
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