Quality evaluation: Online implementation vs. offline reference implementation. a) Comparing results of Java_offline and GPGPU_online using glomerulus maps for three bees (data from ). Top: Java_offline. Bottom: GPGPU_online. b) Positions of signals (columns) selected by the different implementations. Black circles: Positions of all c = 50 columns selected by GPGPU_online. Red triangles: Subset of signals (columns) selected by the reference implementation Java_offline. The subset contains only those signals that correspond to glomeruli. Glomeruli were identified based on their position in the maps, using the anatomical honeybee AL atlas .