hm2prop On 200 samples (720x1280 14,427,315 proposals) 10 threads: 163 sec.
prop2conf On 200 samples (720x1280 14,427,315 proposals) 10 threads: 30 sec.
conf2IoU On 200 samples (720x1280 14,427,315 proposals) 10 threads: 9 sec.
hm2conf On 200 samples (720x1280 14,427,315 proposals) 10 threads: 61 sec.