Lossless medical image compression by IWT and predictive coding
T. G. Shirsat, Vinayak K. Bairagi · 2013
The future of healthcare delivery systems and telemedical applications will undergo a radical change due to the developments in wearable technologies, medical sensors, mobile computing and communication techniques. When dealing with applications of collecting, sorting and transferring medical data from distant locations for performing remote medical collaborations and diagnosis. E-health was born with the integration of networks and telecommunications. In recent years healthcare systems rely on images acquired in two dimensional domains in the case of still images, or three dimensional domains for volumetric video sequences and images. Images are acquired with many modalities including X-ray, magnetic resonance imaging, ultrasound, positron emission tomography, computed axial tomography. Medical information is either in multidimensional or multi-resolution form, this creates enormous amount of data. Retrieval, Efficient storage, management and transmission of this voluminous data are highly complex. One of the solutions to reduce this complex problem is to compress the medical data without any loss (i.e. lossless). Since the diagnostics capabilities are not compromised. This technique combines integer transforms and predictive coding to enhance the performance of lossless compression. The proposed techniques can be evaluated for performance using compression quality measures.