Results 1 to 10 of about 2,076 (161)

Lossy Infrared Image Compression Based on Wavelet Coefficient Probability Modeling and Run-Length-Enhanced Huffman Coding [PDF]

open access: yesSensors
Infrared line-scanning images have high redundancy and large file sizes. In JPEG2000 compression, the MQ arithmetic encoder’s complexity slows down processing. Huffman coding can achieve O(1) complexity based on a code table, but its integer-bit encoding
Yaohua Zhu   +5 more
doaj   +2 more sources

RETRACTED ARTICLE: A Huffman code LSB based image steganography technique using multi-level encryption and achromatic component of an image [PDF]

open access: yesScientific Reports, 2023
In the recent couple of years, due to the accelerated popularity of the internet, various organizations such as government offices, military, private companies, etc. use different transferring methods for exchanging their information.
Shahid Rahman   +7 more
doaj   +2 more sources

An efficient chain code with Huffman coding

open access: yesPattern Recognition, 2005
This paper presents a new chain code based on the eight-direction Freeman code. Each element in the chain is coded as a relative angle difference between it and the previous element. Statistical analysis showed that the probabilities of the Freeman codes differ importantly. Therefore, the Huffman coding was applied.
Borut Zalik
exaly   +3 more sources

On the application of wavelet transform and Huffman algorithm to Yorùbá language syntax text files compression [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2022
Most algorithms of data compression were developed with English language as target text syntax. However, this paper approaches the problem of Yorùbá text files compression via the use of Discrete Wavelet Transform (DWT) and Huffman algorithm ...
Amusa Kamoli Akinwale   +4 more
doaj   +1 more source

Retraction Note: A Huffman code LSB based image steganography technique using multi-level encryption and achromatic component of an image [PDF]

open access: yesScientific Reports
Shahid Rahman   +7 more
doaj   +2 more sources

A lossless compression method for logging data while drilling

open access: yesSystems Science & Control Engineering, 2021
Mud pulse transmission technology is widely used in logging while drilling (LWD), while its low data transmission efficiency has restricted the development of LWD technology for a long time. In order to improve the equivalent data transmission efficiency
Shan Song   +5 more
doaj   +1 more source

Compression of speech using a hybrid method [PDF]

open access: yesمجلة التربية والعلم, 1970
Voice compression is one of the important subject today specially in field of communication and application so in this paper, speech compression was adopted based on hybrid technique between wavelet and Huffman code.
Israa Abdlqader
doaj   +1 more source

Biosignal Compression Toolbox for Digital Biomarker Discovery

open access: yesSensors, 2021
A critical challenge to using longitudinal wearable sensor biosignal data for healthcare applications and digital biomarker development is the exacerbation of the healthcare “data deluge,” leading to new data storage and organization challenges and costs.
Brinnae Bent   +3 more
doaj   +1 more source

A Decentralized Medical Network for Maintaining Patient Records Using Blockchain Technology

open access: yesCybernetics and Information Technologies, 2022
Personal Medical Records (PMR) manage an individual’s medical information in digital form and allow patients to view their medical information and doctors to diagnose diseases. Today’s institution-dependent centralized storage, fails to give trustworthy,
Sumathi M.   +3 more
doaj   +1 more source

Huffman coding

open access: yesInternational journal of health sciences, 2022
In the proposed Huffman LEACH model, energy consumption increases exponentially with distance and there are no maximum limits. The transmit power level of a sensor node can only be adjusted to discrete values that may result in one transmit power level for various distances.
Sunil S. Harakannanavar   +5 more
openaire   +1 more source

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