30–31 May 2024
Wigner Datacenter - HUN-REN Wigner Research Centre for Physics
Europe/Budapest timezone

Parallel image reductions over polygon masks

31 May 2024, 09:30
25m
Wigner Datacenter - HUN-REN Wigner Research Centre for Physics

Wigner Datacenter - HUN-REN Wigner Research Centre for Physics

HUN-REN Wigner RCP 1121 Budapest, Konkoly-Thege Miklós rd 29-33, Hungary

Speaker

Dániel Berényi (Freelancer)

Description

In many image processing problems, we need to process polygons that usually involve rasterization. Also, in many such problems we need to compute reductions over images, such as average of intensities or other metrics. In some cases, a combination of the two computations is desired: we need to use the area of polygons to restrict which pixels should contribute to a reduction operation. Doing this in two steps, first computing a mask and then using it in a reduction is expected to be inefficient. We look into the problem of how to efficiently perform these two operations in a single step on the GPU exploiting parallelism on multiple levels.

Primary author

Dániel Berényi (Freelancer)

Presentation materials