Results 191 to 200 of about 15,429 (227)

Scalable near-lossless video compression based on HEVC

2017 IEEE Visual Communications and Image Processing (VCIP), 2017
Lossless or near-lossless video compression with a certain maximum absolute reconstruction error is required in many professional applications like archiving or medical imaging. However, lossless coding resulting in rather high bit rates and near-lossless coding being traditionally used and especially optimized for still image coding prevents these ...
Andreas Heindel, Andre Kaup
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Near-lossless compression for high frame rate videos

2013 21st Iranian Conference on Electrical Engineering (ICEE), 2013
The widespread usage of internet, limited bandwidth of networks and different types of media all around the net causes a vast growth in compressing data with different abilities and qualities. Nowadays, video is a popular media for everyday usage. In different research areas, there is a need for recording events in high frame rates.
Najmeh Nazari, Roozbeh Shams, Majid Mohrekesh, Shadrokh Samavi   +3 more
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Optimal subtractive dither for near-lossless compression

Proceedings DCC 2000. Data Compression Conference, 2002
Subtractive dither is a technique which may be used to reduce the occurrence of compression artifacts from near-lossless compression. Standard subtractive dither incurs a cost, however, in the form of an increase in rate and distortion, and by giving the reconstructed signal an overall grainy appearance.
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Lossless and near-lossless compression of EEG signals

Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136), 2002
In this paper we study compression techniques for electroencephalograph (EEG) signals. A variety of lossless compression techniques, ranging from simple dictionary based approaches to more sophisticated context modeling techniques based on work in lossless image coding are investigated and compared.
J. Cinkler, X. Kong, N. Memon
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Near-lossless compression of digital terrain elevation data

SPIE Proceedings, 2004
In critical applications of image compression that are sensitive to information loss, lossless compression techniques are usually employed. The compression ratios obtained from lossless techniques are low. Hence we need different schemes that give quantitative guarantees about the type and amount of distortion incurred, viz.
Ramesh V. Panchagnula, William A. Pearlman   +1 more
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Task-Oriented Near-Lossless Burst Compression

2022 IEEE International Symposium on Multimedia (ISM), 2022
Weixin Jiang, Gang Wu, Viswanathan Swaminathan, Stefano Petrangeli, Haoliang Wang, Ryan Rossi, Nedim Lipka   +6 more
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Fixed-slope near-lossless context-based image compression

Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269), 2002
This paper generalizes trellis based near-lossless image compression schemes, in order to satisfy two constraints: a local one, which enforces an upper bound /spl epsiv/ for the reconstruction error at every pixel, and a global one, which penalizes the quantity R+/spl lambda/D (the rate and distortion over each line of the image).
R. Iordache, I. Tabus, J. Astola
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ROI based near lossless hybrid image compression technique

2015 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT), 2015
Region of Interest based compression is an efficient method of compression for images with a particular part to be most significant. It is always a better choice to compress the ROI with lossless compression while the rest of image with lossy compression technique.
Kuldip K. Ade, M. V. Raghunadh
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An improved low complexity Near Lossless Image Compression

International Journal of Signal and Imaging Systems Engineering, 2011
In this paper, a new improved low complexity compression methodology named as Near Lossless Image Compression (NLIC) has been suggested. This algorithm is a hybrid method which includes DCT, a lossy compression technique and JPEG encoding using entropy based Huffman coding, a lossless compression technique.
Mohit Kumar Gupta, Narendra D. Londhe
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Lossless and near-lossless compression of ECG signals

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
We present a linear transformation algorithm (LTA), which is based on a new transformation, linear order transformation (LOT). Experimental results show that the LTA yields comparable results to the Burrows-Wheeler algorithm (BWA) and outperforms the Gzip, and shorten waveform coder for near-lossless ECG compression; for lossless ECG compression it ...
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