This paper deals with performance evaluation of well known image compression algorithm i.e. wavelet based image compression Set Partition in hierarchical Tree (SPIHT) and decomposition algorithm known as Singular Value Decomposition (SVD). Due to multi resolution nature of wavelet transforms, SPIHT provides better image compression at higher compression ratio. The techniques are implemented in ...

JCSE-SPIHT, an algorithm of joint compression and selective encryption based on set partitioning in hierarchical trees (SPIHT), is proposed to achieve image encryption and compression simultaneously. It can protect SPIHT compressed images by only fast scrambling a tiny portion of crucial data during the vailable online 29 March 2014

Set Partitioning in Hierarchal Trees (SPIHT) is an efficient method for compressing images under low bit rates. No List SPIHT (NLS) and Wavelet Based Block Tree Coding (WBTC) are two enhanced algorithms of SPIHT. The WBTC algorithm works on blocks instead of pixels in SPIHT. The size of root block in WBTC varies from one step to another. This reduces the memory requirement to a great extent. NL...

In this paper we present an implementation of the image compression routine SPIHT in reconfigurable logic. A discussion on why adaptive logic is required, as opposed to an ASIC, is provided along with background material on the image compression algorithm. We analyzed several Discrete Wavelet Transform architectures and selected the folded DWT design. In addition we provide a study on what stor...

Hyperspectral images are generated by collecting hundreds of narrow and contiguously spaced spectral bands of data producing a highly correlated long sequence of images. In this study, we investigate and compare the performance of several three-dimensional embedded wavelet algorithms for compression of hyperspectral images. They are 3D-SPIHT, AT3DSPIHT, 3D-SPECK (Three-Dimensional Set Partition...

Set partitioning in heirarichal trees (SPIHT) is a widely used compression algorithm for wavelet transformed images. Of most algorithms developed, SPIHT algorithm ever since its introduction in 1996 for image compression has received a lot of attention. Though SPIHT is much simpler and efficient than many existing compression techniques as it’s a fully embedded codec , provides good image quali...

A bit-plane parallel architecture for a modified set partitioning in hierarchical trees (SPIHT) without lists algorithm, which uses breadth first search scheme, is proposed. The breadth first search scheme is suitable for very large scale integration (VLSI) implementation based on the analysis of SPIHT algorithm. The architecture has advantages of high parallelism, no intermediate buffer as a s...

An efficient hybrid distributed video coding (HDVC) scheme combining residual coding, SW-SPIHT coding and intra-mode decision technology is proposed to offer good rate-distortion performance and low-complexity encoding. The scheme adopts the waveletdomain Wyner-Ziv codec to compress the residual frame between the current frame and its reference frame. An intra-mode decision based on the tempora...