Design and Implementation of Haar Wavelet Transform and Stripe Logic Based Modified SPIHT Algorithm for Medical Imaging

  Mr. Ravi Kiran H.K,  Dr. Paramesha

Image compression has got wide variety of techniques. Among them Set Partitioning in Hierarchical Trees (SPIHT) algorithm is one of the efficient and simpler techniques in the compression field. The basic SPIHT technique has got two main limitations; one of its limitations is in the memory space and other in the speed of the process. To overcome these limitations, listless SPIHT algorithm has been improved, and a Stripe logic based parallel SPIHT (SPS) technique is implemented in this work that uses three passes with no lists in order to reduce required memory space and to enhance the processing speed. A test bench is developed in Verilog so that the design can be functionally verified using ModelSim software. Initially a MATLAB code has been written in order to obtain text file from the image and then the images are first compressed using Haar wavelet transform (HWT) where the image is decomposed into sub-images. After completing the Haar wavelet process another entropy coding technique known as Stripe logic based parallel SPIHT has been applied where it disintegrates a picture into block of stripes and encodes each and every bit in a bit-plane of that block of stripe simultaneously. The proposed method provides better performance parameters such as Efficiency, Compression Ratio, MSE and PSNR values for medical images.

Keywords- Haar Wavelet Transform (HWT), Stripe logic, SPIHT, Compression Ratio and PSNR

Unique Identification Number - IJEDR1701054
Page Number(s) - 347-356
Pubished in - Volume 5 | Issue 1 | February 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Mr. Ravi Kiran H.K,  Dr. Paramesha,   "Design and Implementation of Haar Wavelet Transform and Stripe Logic Based Modified SPIHT Algorithm for Medical Imaging", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 1, pp.347-356, February 2017, Available at :http://www.ijedr.org/papers/IJEDR1701054.pdf