Faster RCNN class loss and Detection scores

[Guru Charan]

Hello users,

below is the score of each predicted box across all the classes from Faster RCNN, (ID is not the trainID that was considered , but during training the IDs are consecutive). When we have a deep look at each predicted bounding box the scores for each class is same for all the boxes. I'm really not able to understand why the Faster RCNN is showing this characteristic, also for convinience I have the loss curve   attached.


x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.761837 ID:= 0 ClassName:=__background__
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0174051 ID:= 12 ClassName:=person
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0117672 ID:= 13 ClassName:=bicyclist
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0113531 ID:= 14 ClassName:=other rider
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0166311 ID:= 17 ClassName:=trafficlight
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0324637 ID:= 16 ClassName:=trafficsign
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0132981 ID:= 10 ClassName:=bicycle
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0791542 ID:= 5 ClassName:=car
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0129369 ID:= 7 ClassName:=bus
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0144247 ID:= 9 ClassName:=motorcycle
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0114448 ID:= 11 ClassName:=othervehicle
x_max 2378.0 x_min 2259.0 y_max 1454.0 y_min 1336.0 Conf:= 0.0172835 ID:= 6 ClassName:=truck

x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.761837 ID:= 0 ClassName:=__background__
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0174051 ID:= 12 ClassName:=person
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0117672 ID:= 13 ClassName:=bicyclist
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0113531 ID:= 14 ClassName:=other rider
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0166311 ID:= 17 ClassName:=trafficlight
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0324637 ID:= 16 ClassName:=trafficsign
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0132981 ID:= 10 ClassName:=bicycle
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0791542 ID:= 5 ClassName:=car
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0129369 ID:= 7 ClassName:=bus
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0144247 ID:= 9 ClassName:=motorcycle
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0114448 ID:= 11 ClassName:=othervehicle
x_max 2362.0 x_min 2248.0 y_max 1443.0 y_min 1309.0 Conf:= 0.0172835 ID:= 6 ClassName:=truck

x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.761837 ID:= 0 ClassName:=__background__
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0174051 ID:= 12 ClassName:=person
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0117672 ID:= 13 ClassName:=bicyclist
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0113531 ID:= 14 ClassName:=other rider
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0166311 ID:= 17 ClassName:=trafficlight
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0324637 ID:= 16 ClassName:=trafficsign
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0132981 ID:= 10 ClassName:=bicycle
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0791542 ID:= 5 ClassName:=car
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0129369 ID:= 7 ClassName:=bus
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0144247 ID:= 9 ClassName:=motorcycle
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0114448 ID:= 11 ClassName:=othervehicle
x_max 2457.0 x_min 2379.0 y_max 1382.0 y_min 1323.0 Conf:= 0.0172835 ID:= 6 ClassName:=truck

x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.761837 ID:= 0 ClassName:=__background__
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0174051 ID:= 12 ClassName:=person
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0117672 ID:= 13 ClassName:=bicyclist
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0113531 ID:= 14 ClassName:=other rider
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0166311 ID:= 17 ClassName:=trafficlight
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0324637 ID:= 16 ClassName:=trafficsign
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0132981 ID:= 10 ClassName:=bicycle
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0791542 ID:= 5 ClassName:=car
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0129369 ID:= 7 ClassName:=bus
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0144247 ID:= 9 ClassName:=motorcycle
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0114448 ID:= 11 ClassName:=othervehicle
x_max 2330.0 x_min 2182.0 y_max 1503.0 y_min 1317.0 Conf:= 0.0172835 ID:= 6 ClassName:=truck