Results 81 to 90 of about 1,568 (215)

The Research on Fault Identification of Spatiotemporal Location With Compressed Grid Data Using the Stochastic Sliding Blocks

IEEE Access
To identify the compressed power grid fault data quickly and effectively, this paper presents a spatiotemporal location fault diagnosis method for the data compressed with set partitioning in hierarchical trees (SPIHT) algorithm.
Tao Liu, Jiaqing Ma, Changsheng Chen, Tao Qin, Zhiqin He, Qinmu Wu, Hui Long   +6 more
doaj   +1 more source

Robust Image Embedded Watermarking Using DCT and Listless SPIHT

Future Internet, 2017
This paper presents a DCT-based (DCT: discrete cosine transform) listless set partitioning in hierarchical trees (SPIHT) digital watermarking technique that is robust against several common attacks such as cropping, filtering, sharpening, noise ...
J. L. Divya Shivani, Ranjan K. Senapati
doaj   +1 more source

Low-Memory Packetized SPIHT Image Compression

, 1999
The SPIHT image compression algorithm is modified for application to large images with limited processor memory. The subband decomposition coefficients are partitioned into small tree-preserving spatial blocks which are each independently coded using the
William A. Pearlman, Frederick W. Wheeler   +1 more
core  

Joined spectral trees for scalable SPIHT-based multispectral image compression

, 2008
In this paper, the compression of multispectral images is addressed. Such 3-D data are characterized by a high correlation across the spectral components. The efficiency of the state-ofthe- art wavelet-based coder 3-D SPIHT is considered.
Kurugollu, Fatih, Khelifi, Fouad, Bouridane, Ahmed   +2 more
core   +1 more source

MEDICAL IMAGES COMPRESSION BASED ON SPIHT AND BAT INSPIRED ALGORITHMS

Iraqi Journal for Computers and Informatics, 2019
There is a significant necessity to compress the medical images for the purposes of communication and storage. Most currently available compression techniques produce an extremely high compression ratio with a high-quality loss.
Sarah Jasim
doaj   +1 more source

Highly scalable image compression based on SPIHT for network applications

, 2002
We propose a highly scalable image compression scheme based on the set partitioning in hierarchical trees (SPIHT) algorithm. Our algorithm, called highly scalable SPIHT (HS-SPIHT), supports spatial and SNR scalability and provides a bitstream that can be
Alfred Mertins (20120058), H Danyali (17051805)   +1 more
core  

PSNR Comparison of Lifting Wavelet Decomposed Modified SPIHT Coded Image with Normal SPIHT Coding

International Journal of Computer Applications, 2014
Today’s world is the era of communication i.e. sending some information from one point to another. And images are one of the commonly used multimedia, because of the application in almost every field of engineering i.e. biomedical, astronomical, geological etc.
Mukesh Pathela, Isha Tyagi, Ashish Nautiyal   +2 more
openaire   +1 more source

PARAMETRIC EVALUATION ON THE PERFORMANCE OF VARIOUS IMAGE COMPRESSION ALGORITHMS [PDF]

ICTACT Journal on Image and Video Processing, 2011
Wavelet analysis plays a vital role in the signal processing especially in image compression. In this paper, various compression algorithms like block truncation coding, EZW and SPIHT are studied and ana- lyzed; its algorithm idea and steps are given ...
V. Sutha Jebakumari, P. Arockia Jansi Rani   +1 more
doaj  

SPIHT implementation [PDF]

V magistrskem delu najprej predstavimo Haarovo transformacijo. Nato razložimo pojme in podatkovne strukture, potrebne za razumevanje algoritma SPIHT. Predstavimo psevdokod implementacije kodiranja in dekodiranja. Delovanje pokažemo na primeru.
Kovačič, Luka
core  

EFFICIENCY SPIHT IN COMPRESSION AND QUALITY OF IMAGE

مجلة كلية التربية للبنات, 2019
Image compression is an important tool to reduce the bandwidth and storage requirements of practical image systems. To reduce the increasing demand of storage space and transmission time compression techniques are the need of the day.
Asst. Lecturer Enas M. Jamel
doaj