Detections change in Deepstream 6.2

I will try using the gst-nvinfer dump plugin. I already tried saving the buffer post inference to a jpg file in both deepstream 6.1 and 6.2 and compared them with a frame diff and found they are the exact same. This is the RGBA image extracted post nvinfer

My belief is that TensorRT is affecting detection. Is that a possibility from your end? Again, the difference on the same video + model is better extreme across different deepstream versions. For example

DS 6.1.1 = 18188 detections
DS 6.1 = 18181
DS 6.2 = 16237 detections

Also, .engine file sizes are different although they had the same pgie config
DS 6.1 = 99.4 mb
DS 6.1.1 = 94.6 mb
DS 6.2 = 94.4 mb

this is the model architecture

        Layer                         Input Shape         Output Shape        WeightPtr
(0)     conv_silu                     [3, 544, 960]       [64, 272, 480]      7168
(1)     conv_silu                     [64, 272, 480]      [128, 136, 240]     81408
(2)     conv_silu                     [128, 136, 240]     [64, 136, 240]      89856
(3)     route: 1                      -                   [128, 136, 240]     -
(4)     conv_silu                     [128, 136, 240]     [64, 136, 240]      98304
(5)     conv_silu                     [64, 136, 240]      [64, 136, 240]      102656
(6)     conv_silu                     [64, 136, 240]      [64, 136, 240]      139776
(7)     shortcut_add_linear: 4        [64, 136, 240]      [64, 136, 240]      -
(8)     conv_silu                     [64, 136, 240]      [64, 136, 240]      144128
(9)     conv_silu                     [64, 136, 240]      [64, 136, 240]      181248
(10)    shortcut_add_linear: 7        [64, 136, 240]      [64, 136, 240]      -
(11)    conv_silu                     [64, 136, 240]      [64, 136, 240]      185600
(12)    conv_silu                     [64, 136, 240]      [64, 136, 240]      222720
(13)    shortcut_add_linear: 10       [64, 136, 240]      [64, 136, 240]      -
(14)    route: 13, 2                  -                   [128, 136, 240]     -
(15)    conv_silu                     [128, 136, 240]     [128, 136, 240]     239616
(16)    conv_silu                     [128, 136, 240]     [256, 68, 120]      535552
(17)    conv_silu                     [256, 68, 120]      [128, 68, 120]      568832
(18)    route: 16                     -                   [256, 68, 120]      -
(19)    conv_silu                     [256, 68, 120]      [128, 68, 120]      602112
(20)    conv_silu                     [128, 68, 120]      [128, 68, 120]      619008
(21)    conv_silu                     [128, 68, 120]      [128, 68, 120]      766976
(22)    shortcut_add_linear: 19       [128, 68, 120]      [128, 68, 120]      -
(23)    conv_silu                     [128, 68, 120]      [128, 68, 120]      783872
(24)    conv_silu                     [128, 68, 120]      [128, 68, 120]      931840
(25)    shortcut_add_linear: 22       [128, 68, 120]      [128, 68, 120]      -
(26)    conv_silu                     [128, 68, 120]      [128, 68, 120]      948736
(27)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1096704
(28)    shortcut_add_linear: 25       [128, 68, 120]      [128, 68, 120]      -
(29)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1113600
(30)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1261568
(31)    shortcut_add_linear: 28       [128, 68, 120]      [128, 68, 120]      -
(32)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1278464
(33)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1426432
(34)    shortcut_add_linear: 31       [128, 68, 120]      [128, 68, 120]      -
(35)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1443328
(36)    conv_silu                     [128, 68, 120]      [128, 68, 120]      1591296
(37)    shortcut_add_linear: 34       [128, 68, 120]      [128, 68, 120]      -
(38)    route: 37, 17                 -                   [256, 68, 120]      -
(39)    conv_silu                     [256, 68, 120]      [256, 68, 120]      1657856
(40)    conv_silu                     [256, 68, 120]      [512, 34, 60]       2839552
(41)    conv_silu                     [512, 34, 60]       [256, 34, 60]       2971648
(42)    route: 40                     -                   [512, 34, 60]       -
(43)    conv_silu                     [512, 34, 60]       [256, 34, 60]       3103744
(44)    conv_silu                     [256, 34, 60]       [256, 34, 60]       3170304
(45)    conv_silu                     [256, 34, 60]       [256, 34, 60]       3761152
(46)    shortcut_add_linear: 43       [256, 34, 60]       [256, 34, 60]       -
(47)    conv_silu                     [256, 34, 60]       [256, 34, 60]       3827712
(48)    conv_silu                     [256, 34, 60]       [256, 34, 60]       4418560
(49)    shortcut_add_linear: 46       [256, 34, 60]       [256, 34, 60]       -
(50)    conv_silu                     [256, 34, 60]       [256, 34, 60]       4485120
(51)    conv_silu                     [256, 34, 60]       [256, 34, 60]       5075968
(52)    shortcut_add_linear: 49       [256, 34, 60]       [256, 34, 60]       -
(53)    conv_silu                     [256, 34, 60]       [256, 34, 60]       5142528
(54)    conv_silu                     [256, 34, 60]       [256, 34, 60]       5733376
(55)    shortcut_add_linear: 52       [256, 34, 60]       [256, 34, 60]       -
(56)    conv_silu                     [256, 34, 60]       [256, 34, 60]       5799936
(57)    conv_silu                     [256, 34, 60]       [256, 34, 60]       6390784
(58)    shortcut_add_linear: 55       [256, 34, 60]       [256, 34, 60]       -
(59)    conv_silu                     [256, 34, 60]       [256, 34, 60]       6457344
(60)    conv_silu                     [256, 34, 60]       [256, 34, 60]       7048192
(61)    shortcut_add_linear: 58       [256, 34, 60]       [256, 34, 60]       -
(62)    conv_silu                     [256, 34, 60]       [256, 34, 60]       7114752
(63)    conv_silu                     [256, 34, 60]       [256, 34, 60]       7705600
(64)    shortcut_add_linear: 61       [256, 34, 60]       [256, 34, 60]       -
(65)    conv_silu                     [256, 34, 60]       [256, 34, 60]       7772160
(66)    conv_silu                     [256, 34, 60]       [256, 34, 60]       8363008
(67)    shortcut_add_linear: 64       [256, 34, 60]       [256, 34, 60]       -
(68)    conv_silu                     [256, 34, 60]       [256, 34, 60]       8429568
(69)    conv_silu                     [256, 34, 60]       [256, 34, 60]       9020416
(70)    shortcut_add_linear: 67       [256, 34, 60]       [256, 34, 60]       -
(71)    route: 70, 41                 -                   [512, 34, 60]       -
(72)    conv_silu                     [512, 34, 60]       [512, 34, 60]       9284608
(73)    conv_silu                     [512, 34, 60]       [1024, 17, 30]      14007296
(74)    conv_silu                     [1024, 17, 30]      [512, 17, 30]       14533632
(75)    route: 73                     -                   [1024, 17, 30]      -
(76)    conv_silu                     [1024, 17, 30]      [512, 17, 30]       15059968
(77)    conv_silu                     [512, 17, 30]       [512, 17, 30]       15324160
(78)    conv_silu                     [512, 17, 30]       [512, 17, 30]       17685504
(79)    shortcut_add_linear: 76       [512, 17, 30]       [512, 17, 30]       -
(80)    conv_silu                     [512, 17, 30]       [512, 17, 30]       17949696
(81)    conv_silu                     [512, 17, 30]       [512, 17, 30]       20311040
(82)    shortcut_add_linear: 79       [512, 17, 30]       [512, 17, 30]       -
(83)    conv_silu                     [512, 17, 30]       [512, 17, 30]       20575232
(84)    conv_silu                     [512, 17, 30]       [512, 17, 30]       22936576
(85)    shortcut_add_linear: 82       [512, 17, 30]       [512, 17, 30]       -
(86)    route: 85, 74                 -                   [1024, 17, 30]      -
(87)    conv_silu                     [1024, 17, 30]      [1024, 17, 30]      23989248
(88)    conv_silu                     [1024, 17, 30]      [512, 17, 30]       24515584
(89)    maxpool                       [512, 17, 30]       [512, 17, 30]       -
(90)    maxpool                       [512, 17, 30]       [512, 17, 30]       -
(91)    maxpool                       [512, 17, 30]       [512, 17, 30]       -
(92)    route: 88, 89, 90, 91         -                   [2048, 17, 30]      -
(93)    conv_silu                     [2048, 17, 30]      [1024, 17, 30]      26616832
(94)    conv_silu                     [1024, 17, 30]      [512, 17, 30]       27143168
(95)    upsample                      [512, 17, 30]       [512, 34, 60]       -
(96)    route: 95, 72                 -                   [1024, 34, 60]      -
(97)    conv_silu                     [1024, 34, 60]      [256, 34, 60]       27406336
(98)    route: 96                     -                   [1024, 34, 60]      -
(99)    conv_silu                     [1024, 34, 60]      [256, 34, 60]       27669504
(100)   conv_silu                     [256, 34, 60]       [256, 34, 60]       27736064
(101)   conv_silu                     [256, 34, 60]       [256, 34, 60]       28326912
(102)   conv_silu                     [256, 34, 60]       [256, 34, 60]       28393472
(103)   conv_silu                     [256, 34, 60]       [256, 34, 60]       28984320
(104)   conv_silu                     [256, 34, 60]       [256, 34, 60]       29050880
(105)   conv_silu                     [256, 34, 60]       [256, 34, 60]       29641728
(106)   route: 105, 97                -                   [512, 34, 60]       -
(107)   conv_silu                     [512, 34, 60]       [512, 34, 60]       29905920
(108)   conv_silu                     [512, 34, 60]       [256, 34, 60]       30038016
(109)   upsample                      [256, 34, 60]       [256, 68, 120]      -
(110)   route: 109, 39                -                   [512, 68, 120]      -
(111)   conv_silu                     [512, 68, 120]      [128, 68, 120]      30104064
(112)   route: 110                    -                   [512, 68, 120]      -
(113)   conv_silu                     [512, 68, 120]      [128, 68, 120]      30170112
(114)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30187008
(115)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30334976
(116)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30351872
(117)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30499840
(118)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30516736
(119)   conv_silu                     [128, 68, 120]      [128, 68, 120]      30664704
(120)   route: 119, 111               -                   [256, 68, 120]      -
(121)   conv_silu                     [256, 68, 120]      [256, 68, 120]      30731264
(122)   conv_silu                     [256, 68, 120]      [256, 34, 60]       31322112
(123)   route: 122, 108               -                   [512, 34, 60]       -
(124)   conv_silu                     [512, 34, 60]       [256, 34, 60]       31454208
(125)   route: 123                    -                   [512, 34, 60]       -
(126)   conv_silu                     [512, 34, 60]       [256, 34, 60]       31586304
(127)   conv_silu                     [256, 34, 60]       [256, 34, 60]       31652864
(128)   conv_silu                     [256, 34, 60]       [256, 34, 60]       32243712
(129)   conv_silu                     [256, 34, 60]       [256, 34, 60]       32310272
(130)   conv_silu                     [256, 34, 60]       [256, 34, 60]       32901120
(131)   conv_silu                     [256, 34, 60]       [256, 34, 60]       32967680
(132)   conv_silu                     [256, 34, 60]       [256, 34, 60]       33558528
(133)   route: 132, 124               -                   [512, 34, 60]       -
(134)   conv_silu                     [512, 34, 60]       [512, 34, 60]       33822720
(135)   conv_silu                     [512, 34, 60]       [512, 17, 30]       36184064
(136)   route: 135, 94                -                   [1024, 17, 30]      -
(137)   conv_silu                     [1024, 17, 30]      [512, 17, 30]       36710400
(138)   route: 136                    -                   [1024, 17, 30]      -
(139)   conv_silu                     [1024, 17, 30]      [512, 17, 30]       37236736
(140)   conv_silu                     [512, 17, 30]       [512, 17, 30]       37500928
(141)   conv_silu                     [512, 17, 30]       [512, 17, 30]       39862272
(142)   conv_silu                     [512, 17, 30]       [512, 17, 30]       40126464
(143)   conv_silu                     [512, 17, 30]       [512, 17, 30]       42487808
(144)   conv_silu                     [512, 17, 30]       [512, 17, 30]       42752000
(145)   conv_silu                     [512, 17, 30]       [512, 17, 30]       45113344
(146)   route: 145, 137               -                   [1024, 17, 30]      -
(147)   conv_silu                     [1024, 17, 30]      [1024, 17, 30]      46166016
(148)   route: 121                    -                   [256, 68, 120]      -
(149)   conv_logistic                 [256, 68, 120]      [21, 68, 120]       46171413
(150)   yolo                          [21, 68, 120]       -                   -
(151)   route: 134                    -                   [512, 34, 60]       -
(152)   conv_logistic                 [512, 34, 60]       [21, 34, 60]        46182186
(153)   yolo                          [21, 34, 60]        -                   -
(154)   route: 147                    -                   [1024, 17, 30]      -
(155)   conv_logistic                 [1024, 17, 30]      [21, 17, 30]        46203711
(156)   yolo                          [21, 17, 30]        -                   -

DS 6.1 Config

[property]
gpu-id = 0
model-color-format = 0
labelfile-path = /labels.txt
uff-input-blob-name = input_image
process-mode = 1
num-detected-classes = 2
interval = 0
batch-size = 1
gie-unique-id = 1
is-classifier = 0
maintain-aspect-ratio = 1
network-mode = 2
workspace-size = 9000
net-scale-factor = .0039215697906911373
cluster-mode = 2
offsets = 0;0;0
force-implicit-batch-dim = 1
infer-dims = 3;544;960
custom-network-config = /best_ap.cfg
model-file=/best_ap.wts
model-engine-file = /fp16.engine
parse-bbox-func-name = NvDsInferParseYolo
custom-lib-path = /opt/nvidia/deepstream/deepstream-6.1/sources/nvdsinfer_custom_impl_Yolo/libnvdsinfer_custom_impl_Yolo.so
engine-create-func-name = NvDsInferYoloCudaEngineGet

[class-attrs-0]
#class = P
post-cluster-threshold = 0.83

[class-attrs-1]
#class = R
post-cluster-threshold = 0.85


DS 6.1.1 Config

[property]
gpu-id = 0
model-color-format = 0
labelfile-path = /labels.txt
uff-input-blob-name = input_image
process-mode = 1
num-detected-classes = 2
interval = 0
batch-size = 1
gie-unique-id = 1
is-classifier = 0
maintain-aspect-ratio = 1
network-mode = 2
workspace-size = 9000
net-scale-factor = .0039215697906911373
cluster-mode = 2
offsets = 0;0;0
force-implicit-batch-dim = 1
infer-dims = 3;544;960
custom-network-config = /best_ap.cfg
model-file=/best_ap.wts
model-engine-file = /fp16.engine
parse-bbox-func-name = NvDsInferParseYolo
custom-lib-path = /opt/nvidia/deepstream/deepstream-6.1/sources/nvdsinfer_custom_impl_Yolo/libnvdsinfer_custom_impl_Yolo.so
engine-create-func-name = NvDsInferYoloCudaEngineGet

[class-attrs-0]
post-cluster-threshold = 0.83

[class-attrs-1]
post-cluster-threshold = 0.85

[property]
gpu-id = 0
model-color-format = 0
labelfile-path = /labels.txt
uff-input-blob-name = input_image
process-mode = 1
num-detected-classes = 2
interval = 0
batch-size = 1
gie-unique-id = 1
is-classifier = 0
maintain-aspect-ratio = 1
network-mode = 2
workspace-size = 9000
net-scale-factor = .0039215697906911373
cluster-mode = 2
offsets = 0;0;0
force-implicit-batch-dim = 1
infer-dims = 3;544;960
custom-network-config = /best_ap.cfg
model-engine-file = /fp16.engine
parse-bbox-func-name = NvDsInferParseYolo
model-file=/best_ap.wts
custom-lib-path = /opt/nvidia/deepstream/deepstream-6.2/sources/nvdsinfer_custom_impl_Yolo/libnvdsinfer_custom_impl_Yolo.so
engine-create-func-name = NvDsInferYoloCudaEngineGet

[class-attrs-0]
post-cluster-threshold = 0.87

[class-attrs-1]
post-cluster-threshold = 0.9


each deepstream is running in its own docker container separate to the other