1 | initial version |
The actual size of the persons in the Daimler images is about 75-80% of the image height (128 pixels), so if your ROI fits the person perfectly, then you need to retain more of the original image above and below the head and feet (respectively).
See examples here, along with the full description of the data set;
http://www.gavrila.net/Research/Pedestrian_Detection/Daimler_Pedestrian_Benchmark_D/Daimler_Mono_Ped__Detection_Be/daimler_mono_ped__detection_be.html