Different approaches to speed up disparity calculation

Note: The code for the stereolab application is required to run these code fragments.

Factors

• Runtime Environment:
  • Just-in-time compilation (Java)
  • Ahead-of-time compilation (C)
  • On graphics processing unit (CUDA)
• Concurrency Strategy
  • Single thread (no concurrency)
  • 1 thread per pixel
  • 1 thread per image-chunk

Results

Hardware

• Intel Xeon E3-1230 v3 (3,30GHz, 4 Cores, 8 Threads)
• GeForce GTX 770

Parameters

• Image-Resolution: 681 × 681 (see image above)
• Window: 15 × 15
• Tau-Max: 40