Non-rigid Registration for Large Sets of Microscopic Images on Graphics Processors

  • Authors:
  • Antonio Ruiz;Manuel Ujaldon;Lee Cooper;Kun Huang

  • Affiliations:
  • Computer Architecture Department, Campus Teatinos, University of Malaga, Malaga, Spain 29071;Computer Architecture Department, Campus Teatinos, University of Malaga, Malaga, Spain 29071;Biomedical Informatics Department, Ohio State University, Columbus, USA 43210;Biomedical Informatics Department, Ohio State University, Columbus, USA 43210

  • Venue:
  • Journal of Signal Processing Systems
  • Year:
  • 2009

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Abstract

Microscopic imaging is an important tool for characterizing tissue morphology and pathology. 3D reconstruction and visualization of large sample tissue structure requires registration of large sets of high-resolution images. However, the scale of this problem presents a challenge for automatic registration methods. In this paper we present a novel method for efficient automatic registration using graphics processing units (GPUs) and parallel programming. Comparing a C++ CPU implementation with Compute Unified Device Architecture (CUDA) libraries and pthreads running on GPU we achieve a speed-up factor of up to 4.11脳 with a single GPU and 6.68脳 with a GPU pair. We present execution times for a benchmark composed of two sets of large-scale images: mouse placenta (16K 脳16K pixels) and breast cancer tumors (23K 脳62K pixels). It takes more than 12聽hours for the genetic case in C++ to register a typical sample composed of 500 consecutive slides, which was reduced to less than 2聽hours using two GPUs, in addition to a very promising scalability for extending those gains easily on a large number of GPUs in a distributed system.