Results 21 to 30 of about 23,115 (236)

Lossless Image Compression Using Super-Spatial Structure Prediction [PDF]

open access: yes, 2010
Digital Object Identifier 10.1109/LSP.2010.2040925We recognize that the key challenge in image compression is to efficiently represent and encode high-frequency image structure components, such as edges, patterns, and textures.
He, Zhihai, 1973-, Zhao, Xiwen Owen
core   +1 more source

IMPROVING EFFICIENCY IN IMAGE ENCRYPTION AND COMPRESSION USING PERMUTATIONS & PREDICTIONS

open access: yesICTACT Journal on Image and Video Processing, 2017
Due to rapid growth in image sizes, an alternate of numerically lossless coding named visually lossless coding is considered to reduce storage size and lower data transmission.
S Shunmugan, P Arockia Jansi Rani
doaj   +1 more source

Lossless Compression Methods for Real-Time Images

open access: yesEurasian Journal of Science and Engineering, 2020
This paper proposes and implements two lossless methods, to compress real-time greyscale medical images, which are Huffman coding and a new lossless method called Reduced Lossless Compression Method (RLCM), both of which were tested when applying a ...
Rand B. Mohammed, Roelof van Silfhout
doaj   +1 more source

Improved Median Edge Detection (iMED) for Lossless Image Compression

open access: yesImage Analysis and Stereology, 2023
A wide variety of applications are used in lossless image compression models, especially in medical, space, and aerial imaging domains. Predictive coding improves the performance of lossless image compression, which highly relies on entropy error.
Muhammad Shoib Amin   +4 more
doaj   +1 more source

On Predictive-Based Lossless Compression of Images with Higher Bit Depths [PDF]

open access: yesTelfor Journal, 2012
Due to the rapidly increasing requirements for data transmission and storage, applications for fast and efficient compression of data have a very important role. Lossless compression must be applied when data acquisition is expensive.
A. Avramović, G. Banjac
doaj  

ROI coding of volumetric medical images with application to visualisation [PDF]

open access: yes, 2003
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed.
Agrafiotis, D, Bull, DR, Canagarajah, CN
core   +2 more sources

Onboard Image Processing System for Hyperspectral Sensor

open access: yesSensors, 2015
Onboard image processing systems for a hyperspectral sensor have been developed in order to maximize image data transmission efficiency for large volume and high speed data downlink capacity.
Hiroki Hihara   +10 more
doaj   +1 more source

Lossless compression of continuous-tone images [PDF]

open access: yesProceedings of the IEEE, 2000
In this paper, we survey some of the recent advances in lossless compression of continuous-tone images. The modeling paradigms underlying the state-of-the-art algorithms, and the principles guiding their design, are discussed in a unified manner. The algorithms are described and experimentally compared.
CARPENTIERI, Bruno   +2 more
openaire   +2 more sources

HYBRID COMPRESSION OF CERVICAL IMAGES BY SEGMENTING NUCLEI-CYTOPLASM [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2012
A hybrid image compression method is proposed by which the Nuclei-Cytoplasm of the image is completely restorable and the background part of the image is restorable with insignificant loss.
Y. Jacob Vetha Raj   +2 more
doaj  

Lossless Astronomical Image Compression and the Effects of Noise

open access: yes, 2009
We compare a variety of lossless image compression methods on a large sample of astronomical images and show how the compression ratios and speeds of the algorithms are affected by the amount of noise in the images.
Pence, W. D., Seaman, R., White, R. L.
core   +1 more source

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