Results 81 to 90 of about 2,854 (228)
Probability updating-based adaptive hybrid coding
Tongxin xuebao, 2008 A probability updating mechanism was proposed for entropy coding. To achieve the best coding efficiency,probability updating based huffman code and structured code were jointly used,and the best context model was selected according as the correlation of ...
doaj +2 more sources
Earth and Space Science, Volume 13, Issue 7, July 2026.Abstract State‐of‐the‐art climate models are approaching gray‐zone resolutions that can improve the representation of tropical cyclones (TCs), but the extent of these gains remains uncertain. This study evaluates the effect of spatial resolution, particularly near the gray‐zone, using three resolution configurations of the Chinese Academy of Sciences ...
Charith Madusanka Widanage +5 more
wiley +1 more source
Segmented Vertex Chain Coding with Huffman Coding
, 2012 [[abstract]]To significantly decrease the amount of information while still preserving the contour shape, chain coding is widely applied to digital images analysis, especially to those raster-shaped ones.
Chen, Po-Yueh; Liao, Hsien-Chou; Chang, Chih-Peng
core
IET Communications, 2011 In this study, the authors consider the class of anti-uniform Huffman (AUH) codes. The authors derived tight lower and upper bounds on the average codeword length, entropy and redundancy of finite and infinite AUH codes in terms of the alphabet size of the source. These bounds are tighter than similar bounds.
Soheil Mohajer, Ali Kakhbod
openaire +1 more source
When Ground Truth Has a Footprint: Rethinking Satellite Rainfall Validation
Earth and Space Science, Volume 13, Issue 7, July 2026.Abstract Accurate evaluation of satellite precipitation products has long depended on comparisons with rain gauge observations, which are often treated as ground truth. Yet this practice overlooks a basic mismatch of scale: gauges measure rainfall at a point, whereas satellite products estimate area‐averaged precipitation. In a recent study, Li et al. (
Jonathan H. Jiang
wiley +1 more source
Digital Image Compression by Huffman Code
, 1987 THE STORAGE AND TRANSMISSION OF DIGITAL IMAGES ARE REQUIRED IN MANY APPLICATIONS LIKE OPTICAL SURVEILLANCE, REMOTE SENSING OR EXPERIMENT AUTOMATION.
TERMANINI Anselmo +2 more
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Shifty Frogs: Evidence of Iridescence Among Amphibians
Austral Ecology, Volume 51, Issue 7, July 2026.ABSTRACT Iridescence is a striking optical phenomenon observed in some animals whereby colour or reflectivity changes based on viewing angle, such that two observers in different locations may simultaneously perceive the same tissue differently. Among amphibians, there is limited photographic evidence of tissues displaying colour shifts that define ...
John Gould
wiley +1 more source
Partial Encryption of Entropy-Coded Video Compression Using Coupled Chaotic Maps
Entropy, 2014 Due to pervasive communication infrastructures, a plethora of enabling technologies is being developed over mobile and wired networks. Among these, video streaming services over IP are the most challenging in terms of quality, real-time requirements and ...
Fadi Almasalha +2 more
doaj +1 more source
HUFFMAN CODING AS A NONLINEAR DYNAMICAL SYSTEM [PDF]
International Journal of Bifurcation and Chaos, 2011 In this paper, source coding or data compression is viewed as a measurement problem. Given a measurement device with fewer states than the observable of a stochastic source, how can one capture their essential information? We propose modeling stochastic sources as piecewise-linear discrete chaotic dynamical systems known as Generalized Luröth Series ...
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Medical Education, Volume 60, Issue 7, Page 732-750, July 2026.Abstract Background This scoping review explores the impact of coaching on the professional identity formation (PIF) of postgraduate medical trainees. Although coaching is well‐documented in undergraduate medical education, its role in postgraduate medical education (PME) remains underexplored.
Roshanee Seth +3 more
wiley +1 more source