A cubic interpolation pipeline for fast computation of 3D deformation fields modeled using B-splines

Carlos R. Castro-Pareja; Raj Shekhar

doi:10.1117/12.650801

15 February 2006 A cubic interpolation pipeline for fast computation of 3D deformation fields modeled using B-splines

Proceedings Volume 6063, Real-Time Image Processing 2006; 606301 (2006) https://doi.org/10.1117/12.650801
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

Fast computation of 3D deformation fields is critical to bringing the application of automated elastic image registration algorithms to routine clinical practice. However, it lies beyond the computational power of current microprocessors; therefore requiring implementations using either massively parallel computers or application-specific hardware accelerators. The use of massively parallel computers in a clinical setting is not practical or cost-effective, therefore making the use of hardware accelerators necessary. We present a hardware pipeline that allows accelerating the computation of 3D deformation fields to speeds up to two orders of magnitude faster than software implementations on current workstations and about 64 times faster than other previously reported architectures. The pipeline implements a version of the free-form deformation calculation algorithm, which is optimized to minimize the number of arithmetic operations required to calculate the transformation of a given set of neighboring voxels, thereby achieving an efficient and compact implementation in hardware which allows its use as part of a larger system.

Citation Download Citation

Carlos R. Castro-Pareja and Raj Shekhar "A cubic interpolation pipeline for fast computation of 3D deformation fields modeled using B-splines", Proc. SPIE 6063, Real-Time Image Processing 2006, 606301 (15 February 2006); https://doi.org/10.1117/12.650801

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