Abstract
The wireless sensor network utilizes image compression algorithms like JPEG, JPEG2000, and SPIHT for image transmission with high coding efficiency. During compression, discrete cosine transform (DCT)–based JPEG has blocking artifacts at low bit-rates. But this effect is reduced by discrete wavelet transform (DWT)–based JPEG2000 and SPIHT algorithm but it possess high computational complexity. This paper proposes an efficient lapped biorthogonal transform (LBT)–based low-complexity zerotree codec (LZC), an entropy coder for image coding algorithm to achieve high compression. The LBT-LZC algorithm yields high compression, better visual quality with low computational complexity. The performance of the proposed method is compared with other popular coding schemes based on LBT, DCT and wavelet transforms. The simulation results reveal that the proposed algorithm reduces the blocking artifacts and achieves high compression. Besides, it is analyzed for noise resilience.
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Abbreviations
- LBT:
-
Lapped biorthogonal transform
- LT:
-
Lapped transform
- LOT:
-
Lapped orthogonal transform
- LZC:
-
Low-complexity zerotree codec
- JPEG:
-
Joint photographic experts group
- SPIHT:
-
Set partitioning in hierarchical trees
- DCT:
-
Discrete cosine transform
- DWT:
-
Discrete wavelet transform
- WSN:
-
Wireless sensor networks
- PSNR:
-
Peak signal to noise ratio
- MPEG:
-
Moving pictures experts group
- EBCOT:
-
Embedded block coding with optimized truncation
- HD:
-
High definition
- FDCT:
-
Forward discrete cosine transform
- IDCT:
-
Inverse discrete cosine transform
- FLOT:
-
Forward lapped orthogonal transform
- ILOT:
-
Inverse lapped orthogonal transform
- FLBT:
-
Forward lapped biorthogonal transform
- ILBT:
-
Inverse lapped biorthogonal transform
- OALBT:
-
Orientation adaptive LBT
- VLLBT:
-
Variable length LBT
- ZTC:
-
Zero tree codec
- MPS:
-
Most probable symbol
- LPS:
-
Least probable symbol
- BPP:
-
Bits per pixel
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Deepa, P., Vasanthanayaki, C. Image coding using lapped biorthogonal transform. SIViP 7, 879–888 (2013). https://doi.org/10.1007/s11760-011-0277-x
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DOI: https://doi.org/10.1007/s11760-011-0277-x