traffic_light detection with int8

[leizi111]

System information

• OS Platform and Distribution (e.g., Linux Ubuntu 18.04): Ubuntu 20.04
• Apollo installed from (source or binary): source
• Apollo version (3.5, 5.0, 5.5, 6.0): 9.0
• Output of apollo.sh config if on master branch: master

Steps to reproduce the issue:

Hello! When i use NVIDIA AGX orin run traffic_light perception with cyber_launch start modules/perception/launch/perception_trafficlight.launch, then terminal report an error: E0909 09:33:15.069639 61219 rt_net.cc:51] [mainboard]4: [standardEngineBuilder.cpp::initCalibrationParams::1460] Error Code 4: Internal Error (Calibration failure occurred with no scaling factors detected. This could be due to no int8 calibrator or insufficient custom scales for network layers. Please see int8 sample to setup calibration correctly.) traffic_light detection model download from https://apollo.baidu.com/community/article/1236. how can I fix this issue?

[chenjian88888]

我也遇见了这个问题

E1022 17:38:31.408428 32422 rt_net.cc:51] 4: [standardEngineBuilder.cpp::initCalibrationParams::1460] Error Code 4: Internal Error (Calibration failure occurred with no scaling factors detected. This could be due to no int8 calibrator or insufficient custom scales for network layers. Please see int8 sample to setup calibration correctly.)

[chenjian88888]

将detection.cc和classify.cc中的

  rt_net_.reset(inference::CreateInferenceByName(model_type, proto_file,
                                                 weight_file, net_outputs_,
                                                 net_inputs_, model_path));

改为如下，可强制使用FP32推理，临时解决问题

  rt_net_.reset(inference::CreateInferenceByName(model_type, proto_file,
                                                 weight_file, net_outputs_,
                                                 net_inputs_));