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    Training custom yolov8 model

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    • KnightHawk06K
      KnightHawk06
      last edited by

      I am following the tutorial below to train a custom yolov8 model with 295 photos of a fuel canister. I'm training the model on a GCP instance with a NVIDIA Tesla P4. Instead of using the full COCO database, I'm only using 0=background and 1=fuel_canister. I am getting flooded with 'should not reach here' error logs when trying to run voxl-tflite-server. I have tried both configs below. Any ideas?

      https://gitlab.com/voxl-public/support/voxl-train-yolov8.git

      voxl2:~$ journalctl -u voxl-tflite-server -n 20 --no-pager
      
      -- Logs begin at Thu 2023-03-02 12:58:02 UTC, end at Tue 2025-05-13 00:18:20 UTC. --
      
      May 13 00:18:15 m0054 bash[10642]: Error in TensorData<float>: should not reach here
      
      May 13 00:18:16 m0054 bash[10642]: Error in TensorData<float>: should not reach here
      
      May 13 00:18:16 m0054 bash[10642]: Error in TensorData<float>: should not reach here
      
      May 13 00:18:16 m0054 bash[10642]: Current pipeline throughput: 4.64115 frames per second
      
      1) docker build -t yolov8-train:latest .
      2) docker run --gpus all -it --shm-size=8g -v "$(pwd)":/app/ yolov8-train:latest /bin/bash
      3) /app python3 train.py
      4) /app yolo task=detect mode=val model=/app/runs/detect/fuel_canister_exp12/weights/best.pt data=/app/dataset.yaml split=test name=fuel_canister_test_eval
      5) /app yolo export model=./runs/detect/fuel_canister_exp12/weights/best.pt format=tflite imgsz=640 nms=False half=True
      
      cat fuel_canister_labels.txt
      0   background
      1   fuel_canister
      
      cat /etc/modalai/voxl-tflite-server
      /**
      * voxl-tflite-server Configuration File
      *
      * skip_n_frames       - how many frames to skip between processed frames. For 30 Hz
      *                         input, skip 5  ^g^r 5 Hz inference. Set 0 for full rate.
      * model               - which model to use. Bundled choices include mobilenet,
      *                         fastdepth, posenet, deeplab, yolov5, yolov8.
      * input_pipe          - which camera pipe to read (tracking, hires, stereo, etc.).
      * delegate            - hardware acceleration: gpu, cpu, or nnapi.  "gpu" is best
      *                         on VOXL 2 for float16 models.
      * allow_multiple      - if true, removes single-instance lock so multiple servers
      *                         can run (one per config file).
      * output_pipe_prefix  - prefix added to the default output pipes when
      *                         allow_multiple is true.
      */
      {
         "skip_n_frames": 0,
         "model": "/etc/modalai/tflite_models/fuel_canister_yolov8_custom.tflite",
         "input_pipe": "/run/mpa/hires_front_small_color",
         "delegate": "cpu",
         "requires_labels": true,
         "labels": "/etc/modalai/tflite_models/fuel_canister_labels.txt",
         "allow_multiple": false,
         "output_pipe_prefix": "fuel_canister",
         "output_meta_type": "YOLO_V8",
         "debug_en": false,
         "confidence_threshold": 0.1
      }
      
      /**
       * voxl-tflite-server Configuration File
       *
       * skip_n_frames       - how many frames to skip between processed frames. For 30 Hz
       *                         input, skip 5 ⇒ 5 Hz inference. Set 0 for full rate.
       * model               - which model to use. Bundled choices include mobilenet,
       *                         fastdepth, posenet, deeplab, yolov5, yolov8.
       * input_pipe          - which camera pipe to read (tracking, hires, stereo, etc.).
       * delegate            - hardware acceleration: gpu, cpu, or nnapi.  "gpu" is best
       *                         on VOXL 2 for float16 models.
       * allow_multiple      - if true, removes single-instance lock so multiple servers
       *                         can run (one per config file).
       * output_pipe_prefix  - prefix added to the default output pipes when
       *                         allow_multiple is true.
       */
      {
          "skip_n_frames": 0,
          "model": "/etc/modalai/tflite_models/fuel_canister_yolov8_custom.tflite",
          "input_pipe": "/run/mpa/hires_front_small_color",
          "delegate": "cpu",
          "requires_labels": true,
          "labels": "/etc/modalai/tflite_models/fuel_canister_labels.txt",
          "allow_multiple": false,
          "output_pipe_prefix": "fuel_canister",
          "confidence_threshold": 0.5
      }
      
      voxl2:~$ voxl-version
      ────────────────────────────────────────────────────────────────────────────────
      system-image: 1.8.02-M0054-14.1a-perf
      kernel: #1 SMP PREEMPT Mon Nov 11 22:47:44 UTC 2024 4.19.125
      ────────────────────────────────────────────────────────────────────────────────
      hw platform: M0054
      mach.var: 1.0.1
      ────────────────────────────────────────────────────────────────────────────────
      voxl-suite: 1.4.3
      ────────────────────────────────────────────────────────────────────────────────
      Packages:
      Repo: http://voxl-packages.modalai.com/ ./dists/qrb5165/sdk-1.4/binary-arm64/
      Last Updated: 2025-04-17 20:21:35
      List:
      kernel-module-voxl-fsync-mod-4.19.125 1.0-r0
      kernel-module-voxl-gpio-mod-4.19.125 1.0-r0
      kernel-module-voxl-platform-mod-4.19.125 1.0-r0
      libfc-sensor 1.0.7
      libmodal-cv 0.5.16
      libmodal-exposure 0.1.3
      libmodal-journal 0.2.3
      libmodal-json 0.4.3
      libmodal-pipe 2.10.6
      libqrb5165-io 0.4.9
      libvoxl-cci-direct 0.2.5
      libvoxl-cutils 0.1.1
      modalai-slpi 1.1.19
      mv-voxl 0.1-r0
      qrb5165-bind 0.1-r0
      qrb5165-dfs-server 0.2.0
      qrb5165-imu-server 1.1.3
      qrb5165-rangefinder-server 0.1.5
      qrb5165-slpi-test-sig 01-r0
      qrb5165-system-tweaks 0.3.5
      qrb5165-tflite 2.8.0-2
      voxl-bind-spektrum 0.1.1
      voxl-camera-calibration 0.5.9
      voxl-camera-server 2.1.2
      voxl-ceres-solver 2:1.14.0-10
      voxl-configurator 1.0.0
      voxl-cpu-monitor 0.5.3
      voxl-cross-template 0.0.1
      voxl-docker-support 1.3.1
      voxl-elrs 0.4.2
      voxl-esc 1.5.1
      voxl-feature-tracker 0.5.2
      voxl-flow-server 0.3.6
      voxl-fsync-mod 1.0-r0
      voxl-gphoto2-server 0.0.10
      voxl-gpio-mod 1.0-r0
      voxl-io-server 0.0.5
      voxl-jpeg-turbo 2.1.3-5
      voxl-lepton-server 1.3.3
      voxl-lepton-tracker 0.0.4
      voxl-libgphoto2 0.0.4
      voxl-libuvc 1.0.7
      voxl-logger 0.5.0
      voxl-mavcam-manager 0.5.8
      voxl-mavlink 0.1.4
      voxl-mavlink-server 1.4.5
      voxl-modem 1.1.5
      voxl-mongoose 7.7.0-1
      voxl-mpa-to-ros 0.3.9
      voxl-mpa-tools 1.3.7
      voxl-open-vins 0.4.17
      voxl-open-vins-server 0.3.0
      voxl-opencv 4.5.5-2
      voxl-osd 0.1.3
      voxl-platform-mod 1.0-r0
      voxl-portal 0.7.9
      voxl-px4 1.14.0-2.0.98
      voxl-px4-imu-server 0.1.2
      voxl-px4-params 0.6.7
      voxl-qvio-server 1.1.1
      voxl-remote-id 0.0.9
      voxl-reset-slpi 0.0.1
      voxl-state-estimator 0.0.4
      voxl-streamer 0.7.5
      voxl-suite 1.4.3
      voxl-tag-detector 0.0.4
      voxl-tflite-server 0.3.9
      voxl-utils 1.4.6
      voxl-uvc-server 0.1.7
      voxl-vision-hub 1.8.20
      voxl-vtx 1.2.2
      voxl2-io 0.0.3
      voxl2-system-image 1.8.02-r0
      voxl2-wlan 1.0-r0
      
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