Unable to run the LPR model in a Jetson nano

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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Creating Pipeline

Creating Source

Creating H264Parser

Creating Decoder

Creating H264 Encoder
Creating H264 rtppay
Playing file /dli/task/my_apps/auto-sentry/videos/img_1280.264
Warning: ‘input-dims’ parameter has been deprecated. Use ‘infer-dims’ instead.
Unknown or legacy key specified ‘process_mode’ for group [property]
Warn: ‘threshold’ parameter has been deprecated. Use ‘pre-cluster-threshold’ instead.
Adding elements to Pipeline

*** DeepStream: Launched RTSP Streaming at rtsp://localhost:8554/ds-test ***

Starting pipeline

Opening in BLOCKING MODE
Opening in BLOCKING MODE
0:00:00.411950373 1233 0xccd1260 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 2]: Warning from NvDsInferContextImpl::initialize() <nvdsinfer_context_impl.cpp:1161> [UID = 2]: Warning, OpenCV has been deprecated. Using NMS for clustering instead of cv::groupRectangles with topK = 20 and NMS Threshold = 0.5
0:00:07.727722926 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 2]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1900> [UID = 2]: deserialized trt engine from :/opt/nvidia/deepstream/deepstream-6.0/sources/deepstream_python_apps/my_apps/model/LP/LPR/lpr_us_onnx_b16.engine
INFO: [FullDims Engine Info]: layers num: 3
0 INPUT kFLOAT image_input 3x48x96 min: 1x3x48x96 opt: 4x3x48x96 Max: 16x3x48x96
1 OUTPUT kINT32 tf_op_layer_ArgMax 24 min: 0 opt: 0 Max: 0
2 OUTPUT kFLOAT tf_op_layer_Max 24 min: 0 opt: 0 Max: 0

ERROR: [TRT]: 3: Cannot find binding of given name: output_bbox/BiasAdd
0:00:07.729057903 1233 0xccd1260 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 2]: Warning from NvDsInferContextImpl::checkBackendParams() <nvdsinfer_context_impl.cpp:1868> [UID = 2]: Could not find output layer ‘output_bbox/BiasAdd’ in engine
ERROR: [TRT]: 3: Cannot find binding of given name: output_cov/Sigmoid
0:00:07.729128529 1233 0xccd1260 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 2]: Warning from NvDsInferContextImpl::checkBackendParams() <nvdsinfer_context_impl.cpp:1868> [UID = 2]: Could not find output layer ‘output_cov/Sigmoid’ in engine
0:00:07.729159415 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 2]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2004> [UID = 2]: Use deserialized engine model: /opt/nvidia/deepstream/deepstream-6.0/sources/deepstream_python_apps/my_apps/model/LP/LPR/lpr_us_onnx_b16.engine
0:00:07.757646286 1233 0xccd1260 INFO nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus: [UID 2]: Load new model:sgie2_config.txt sucessfully
0:00:08.382378544 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 2]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1900> [UID = 2]: deserialized trt engine from :/opt/nvidia/deepstream/deepstream-6.0/sources/deepstream_python_apps/my_apps/model/LP/LPD/usa_pruned.etlt_b16_gpu0_fp16.engine
INFO: [Implicit Engine Info]: layers num: 3
0 INPUT kFLOAT input_1 3x480x640
1 OUTPUT kFLOAT output_bbox/BiasAdd 4x30x40
2 OUTPUT kFLOAT output_cov/Sigmoid 1x30x40

0:00:08.383557632 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 2]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2004> [UID = 2]: Use deserialized engine model: /opt/nvidia/deepstream/deepstream-6.0/sources/deepstream_python_apps/my_apps/model/LP/LPD/usa_pruned.etlt_b16_gpu0_fp16.engine
0:00:08.499819644 1233 0xccd1260 INFO nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus: [UID 2]: Load new model:sgie1_config.txt sucessfully
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
~~ CLOG[/dvs/git/dirty/git-master_linux/deepstream/sdk/src/utils/nvmultiobjecttracker/include/modules/NvMultiObjectTracker/NvTrackerParams.hpp, getConfigRoot() @line 54]: [NvTrackerParams::getConfigRoot()] !!![WARNING] Invalid low-level config file caused an exception, but will go ahead with the default config values
gstnvtracker: Batch processing is ON
gstnvtracker: Past frame output is OFF
~~ CLOG[/dvs/git/dirty/git-master_linux/deepstream/sdk/src/utils/nvmultiobjecttracker/include/modules/NvMultiObjectTracker/NvTrackerParams.hpp, getConfigRoot() @line 54]: [NvTrackerParams::getConfigRoot()] !!![WARNING] Invalid low-level config file caused an exception, but will go ahead with the default config values
[NvMultiObjectTracker] Initialized
0:00:08.546134872 1233 0xccd1260 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::initialize() <nvdsinfer_context_impl.cpp:1161> [UID = 1]: Warning, OpenCV has been deprecated. Using NMS for clustering instead of cv::groupRectangles with topK = 20 and NMS Threshold = 0.5
0:00:09.080365836 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1900> [UID = 1]: deserialized trt engine from :/opt/nvidia/deepstream/deepstream-6.0/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_fp16.engine
INFO: [Implicit Engine Info]: layers num: 3
0 INPUT kFLOAT input_1 3x368x640
1 OUTPUT kFLOAT conv2d_bbox 16x23x40
2 OUTPUT kFLOAT conv2d_cov/Sigmoid 4x23x40

0:00:09.081373514 1233 0xccd1260 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2004> [UID = 1]: Use deserialized engine model: /opt/nvidia/deepstream/deepstream-6.0/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_fp16.engine
0:00:09.088661434 1233 0xccd1260 INFO nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus: [UID 1]: Load new model:pgie_config.txt sucessfully
NvMMLiteOpen : Block : BlockType = 261
NVMEDIA: Reading vendor.tegra.display-size : status: 6
NvMMLiteBlockCreate : Block : BlockType = 261
NvMMLiteOpen : Block : BlockType = 4
===== NVMEDIA: NVENC =====
NvMMLiteBlockCreate : Block : BlockType = 4
/dvs/git/dirty/git-master_linux/nvutils/nvbufsurftransform/nvbufsurftransform.cpp:3885: => VIC Configuration failed image scale factor exceeds 16, use GPU for Transformation
0:00:09.457638433 1233 0xce0ef70 WARN nvinfer gstnvinfer.cpp:1376:convert_batch_and_push_to_input_thread: error: NvBufSurfTransform failed with error -2 while converting buffer
0:00:09.458394231 1233 0xce0ef70 WARN nvinfer gstnvinfer.cpp:2288:gst_nvinfer_output_loop: error: Internal data stream error.
0:00:09.458501629 1233 0xce0ef70 WARN nvinfer gstnvinfer.cpp:2288:gst_nvinfer_output_loop: error: streaming stopped, reason error (-5)
0:00:09.458678768 1233 0xce0ef70 WARN nvinfer gstnvinfer.cpp:1376:convert_batch_and_push_to_input_thread: error: NvBufSurfTransform failed with error -3 while converting buffer
Error: gst-stream-error-quark: NvBufSurfTransform failed with error -2 while converting buffer (1): /dvs/git/dirty/git-master_linux/deepstream/sdk/src/gst-plugins/gst-nvinfer/gstnvinfer.cpp(1376): convert_batch_and_push_to_input_thread (): /GstPipeline:pipeline0/GstNvInfer:secondary2-nvinference-engine
0:00:09.488175817 1233 0xce0ef70 WARN nvinfer gstnvinfer.cpp:1376:convert_batch_and_push_to_input_thread: error: NvBufSurfTransform failed with error -3 while converting buffer

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There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks

Hi,
The latest release for Jetson Nano is Jetpack 4.6.3 + DeepStream SDK 6.0.1. Please make sure you use this release. If you use the latest release and the issue still exists, please share the command so that we can give it a try.

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