Results 41 to 50 of about 7,252 (285)
Mobile Information Systems, Volume 2021, Issue 1, 2021., 2021 Lossy compression can produce false information, such as blockiness, noise, ringing, ghosting, aliasing, and blurring. This paper provides a comprehensive model for optical remote sensing image characteristics based on the block standard deviation’s retention rate (BSV).
Wenbing Yang +6 more
wiley +1 more source
Algorithmic modifications to SPIHT
Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002 This paper proposes several low complexity algorithmic modifications to the SPIHT (set partitioning in hierarchical trees) image coding method of Said and Pearlman (1996). The modifications exploit universal traits common to the real world images. Approximately 1-2% compression gain (bit rate reduction for a given mean squared error) has been obtained ...
Ulug Bayazit, William A. Pearlman
openaire +1 more source
On the rate-distortion performance and computational efficiency of the Karhunen-Loeve transform for lossy data compression [PDF]
, 2002 We examine the rate-distortion performance and computational complexity of linear transforms for lossy data compression. The goal is to better understand the performance/complexity tradeoffs associated with using the Karhunen-Loeve transform (KLT) and ...
Effros, Michelle, Feng, Hanying
core +1 more source
Jurnal Nasional Teknik Elektro, 2017 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
Hyperspectral image compression : adapting SPIHT and EZW to Anisotropic 3-D Wavelet Coding [PDF]
, 2008 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 +2 more sources
SPIHT for generalized multiple description coding [PDF]
Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348), 2003 We present a simple and efficient scheme for using the Set Partitioning in Hierarchical Trees (SPIHT) image compression algorithm in a generalized multiple description framework. To combat packet loss, controlled amounts of redundancy are added to the original data during the compression process.
Agnieszka C. Miguel +2 more
openaire +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2018 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
Adaptation of Zerotrees Using Signed Binary Digit Representations for 3D Image Coding [PDF]
, 2007 Zerotrees of wavelet coefficients have shown a good adaptability for the compression of three-dimensional images. EZW, the original algorithm using zerotree, shows good performance and was successfully adapted to 3D image compression.
Christophe, Emmanuel +2 more
core +2 more sources
SATELLITE IMAGE REMOTE SENSING FOR IDENTIFYING AIRCRAFT USING SPIHT AND NSCT
, 2020 This paper proposes the application of various types of highlight extractors method to perceive the airplane utilizing the satellite picture. Acknowledgment of article (Aircraft) in a picture dependent on the mix of highlight extractors which contain non-
Srinath Doss +5 more
semanticscholar +1 more source
An Efficient Lossless ROI Image Compression Using Wavelet-Based Modified Region Growing Algorithm
Journal of Intelligent Systems, 2018 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