It can be considered as modified form of SPIHT
The improved SPIHT
image coding algorithm based on fast lifting wavelet transform presents fast lifting wavelet transform to improve transform course, because of many consecutive zero appearing in SPIHT
quantification coding, adopting the simultaneous encoding of entropy and SPIHT
The Table 4 results show that the SPIHT
scheme provides moderate or low complexity level.
Some of the embedded coding schemes are embedded image coding using zero trees of wavelet coefficients (EZW) and SPIHT
. The SPIHT
coder is a powerful image compression algorithm that produces an embedded bit stream from which the best reconstructed images can be obtained at various bit rates.
In order to quantitatively examine the performance of these compression algorithms on UWB signals, the JPEG2000 and SPIHT
algorithms are applied to UWB signals used for breast cancer classification.
La tecnica de particion espacial mediante arboles jerarquicos (SPIHT
) utiliza la transformada de onduleta (DWT):
The literature also describes the use of advanced wavelet techniques such as set partitioning in hierarchical trees (SPIHT
) that provide better image quality than JPEG, especially at high compression ratios.
Imaculate Rosaline, SPIHT
Compression of Encrypted Images,IEEE, pp.
Other codecs like EZW, SPIHT
, SPECK may also be used.
Then the transform coefficients are coding by compression algorithms, such as EZW , SPIHT
, SPECK, EBCOT , and bit plane encoder (BPE).