Results 41 to 50 of about 1,285 (216)
Hyperspectral image compression : adapting SPIHT and EZW to Anisotropic 3-D Wavelet Coding [PDF]
Hyperspectral images present some specific characteristics that should be used by an efficient compression system. In compression, wavelets have shown a good adaptability to a wide range of data, while being of reasonable complexity.
Christophe, Emmanuel +2 more
core +1 more source
This study is the simulation of SPIHT image compression using diversity selection combining techniques. The image is compressed by using SPIHT compression techniques after wavelet decomposition.
Baharuddin Abbas
doaj +3 more sources
互联网的飞速发展,产生了大量的图像信息.为了减少图片占用的存储空间,提高图像质量,提出了一种将主成分分析(PCA)和分层树集合划分(SPIHT)压缩算法相结合的有损图像压缩算法.首先对图像进行主成分分解,选取主要特征值进行压缩,再利用SPIHT算法将图像分解成不同子带的小波系数进行压缩,对SPIHT压缩系数进行哈夫曼编码,实现图像二级压缩.将本文提出的算法与SPIHT、SPIHT的哈夫曼编码、JEPG2000、PCA压缩算法进行了比较,结果表明本算法较其他压缩算法具有更好的性能 ...
FANGXiansu(方炫苏) +2 more
doaj +1 more source
An Efficient Lossless ROI Image Compression Using Wavelet-Based Modified Region Growing Algorithm
Nowadays, medical imaging and telemedicine are increasingly being utilized on a huge scale. The expanding interest in storing and sending medical images brings a lack of adequate memory spaces and transmission bandwidth.
Sreenivasulu P., Varadarajan S.
doaj +1 more source
Joint Image Compression and Encryption Using IWT with SPIHT, Kd-Tree and Chaotic Maps
Confidentiality and efficient bandwidth utilization require a combination of compression and encryption of digital images. In this paper, a new method for joint image compression and encryption based on set partitioning in hierarchical trees (SPIHT) with
Nasrullah +5 more
doaj +1 more source
Blind Dual Watermarking Scheme Using Stucki Kernel and SPIHT for Image Self-Recovery
In this paper we propose a blind dual watermarking scheme using Set Partitioning in Hierarchical Trees (SPIHT) and Stucki Kernel halftone technique for the tamper detection and image self-recovery.
Qiyuan Zhang, Xiaochen Yuan, Tong Liu
doaj +1 more source
In this paper, a multi-wavelet transform with decimated frequency bands is proposed to be used in the Set Partitioning in Hierarchical Trees (SPIHT) algorithm to improve fingerprint image compression.
N R Rema, P Mythili
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Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
Shiguo Lian, Jinsheng Sun, Zhiquan Wang
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In this paper, a multiwavelet based fingerprint compression technique using set partitioning in hierarchical trees (SPIHT) algorithm with optimised prefilter coefficients is proposed.
N R Rema, K T Shanavaz, P Mythili
doaj +1 more source
EEG Compression Using Motion Compensated Temporal Filtering and Wavelet Based Subband Coding
Electroencephalography (EEG) signals are commonly used in medical applications for prevention, diagnosis, and detection of neurological diseases. These EEG signals have also been used in designing brain computer interfaces for assistive technologies. For
Beenish Khalid +4 more
doaj +1 more source

