Title :
Interslice coding of magnetic resonance images using deformable triangular patches
Author :
Nosratinia, Aria ; Orchard, Michael T. ; Mohsenian, Nuder ; Liu, Bede
Author_Institution :
Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA
Abstract :
We present a new inter-frame coding for medical images, in particular magnetic resonance (MR) images. Until now, attempts in using inter-frame redundancies for coding MR images have been unsuccessful. We contend that the main reason for this is twofold: bad inter-frame estimation models and ignoring the thermal noise inherent in MRI. Our inter-frame model is a continuous affine mapping based on (and optimized by) deforming triangles. The inherent noise of MRI is dealt with by using a median filter within the estimation loop. Simulations demonstrate the viability of this algorithm
Keywords :
biomedical NMR; filtering theory; image coding; median filters; medical image processing; thermal noise; MR images; MRI; algorithm; continuous affine mapping; deformable triangular patches; estimation loop; inter-frame coding; inter-frame estimation models; inter-frame redundancies; interslice coding; magnetic resonance images; median filter; medical images; simulations; thermal noise; Biomedical imaging; Computed tomography; Discrete cosine transforms; Filters; Image coding; Magnetic resonance; Magnetic resonance imaging; Magnetic separation; Medical diagnostic imaging; Redundancy;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413485
