I'm try to use HOG People Detector for obtain Region of Interest. I have this depth image 
and the istruction is:
HOGDescriptor hog;
hog.setSVMDetector(HOGDescriptor::getDefaultPeopleDetector());
vector found, found_filtered;
hog.detectMultiScale(falseColorsMap, found, 0, Size(16, 16), Size(32, 32), 1.05, 2);
size_t i, j;
for (i = 0; i
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