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'2021/10/14'에 해당되는 글 2건

2021.10.14 imx 8m plus NPU 에러 추적
2021.10.14 번호판 인식(tesseract)

imx 8m plus NPU 에러 추적

어떤 라이브러리에서 하나 뒤져보는데 일단 tensorflow 소스에는 없고

file system에서 뒤져보는데 /usr/lib/libovxlib.so.1.1.0 파일에서 발견된다.

후.. 추적은 일단 포기

lrwxrwxrwx 1 root root      18 Mar  9  2018 /usr/lib/libovxlib.so.1 -> libovxlib.so.1.1.0
lrwxrwxrwx 1 root root      18 Mar  9  2018 /usr/lib/libovxlib.so.1.1 -> libovxlib.so.1.1.0
-rwxr-xr-x 1 root root 3705768 Mar  9  2018 /usr/lib/libovxlib.so.1.1.0

INFO: Loaded model my_model.tflite
INFO: resolved reporter
INFO: Created TensorFlow Lite delegate for NNAPI.
INFO: Use NNAPI acceleration.
WARNING: Operator RESIZE_BILINEAR (v3) refused by NNAPI delegate: Operator refused due performance reasons.
INFO: Applied NNAPI delegate.
W [vsi_nn_op_eltwise_setup:178]Output size mismatch, expect 917504, but got 50176
E [setup_node:448]Setup node[52] PRELU fail
W [vsi_nn_op_eltwise_setup:178]Output size mismatch, expect 917504, but got 50176
E [setup_node:448]Setup node[52] PRELU fail
ERROR: NN API returned error ANEURALNETWORKS_BAD_DATA at line 4151 while running computation.

ERROR: Node number 56 (TfLiteNnapiDelegate) failed to invoke.

ERROR: Failed to invoke tflite!

+

coco ssd mobilenet v1 - object detection은 정상적으로 작동한다

# time ./label_image -m 1.tflite -a 1
INFO: Loaded model 1.tflite
INFO: resolved reporter
INFO: Created TensorFlow Lite delegate for NNAPI.
INFO: Use NNAPI acceleration.
WARNING: Operator CUSTOM (v1) refused by NNAPI delegate: Unsupported operation type.
INFO: Applied NNAPI delegate.
INFO: invoked
INFO: average time: 13.178 ms
INFO: 0.00389769: 3 great white shark
INFO: 0.0038741: 2 goldfish

real    0m5.722s
user    0m5.573s
sys     0m0.136s

[링크 : https://www.tensorflow.org/lite/examples/object_detection/overview]

저작자표시

'embeded > i.mx 8m plus' 카테고리의 다른 글

imx 8m plus NPU 에러 추적 (0)	2021.10.14
i.MX 8M PLUS tensorflow NPU (0)	2021.10.13
i.MX 8M PLUS (0)	2021.10.13

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번호판 인식(tesseract)

처음 패키지가 본체(?)고 그 위에는 한글언어 인식 데이터 패키지

$ sudo apt install tesseract-ocr tesseract-ocr-kor tesseract-ocr-script-hang tesseract-ocr-script-hang-vert

도움말을 보는데 도움은 안된다(응?)

리눅스에서 실행시 outputbase를 stdout으로 하면 콘솔에 텍스트로 출력된다.

$ tesseract --help
Usage:
  tesseract --help | --help-extra | --version
  tesseract --list-langs
  tesseract imagename outputbase [options...] [configfile...]

OCR options:
  -l LANG[+LANG]        Specify language(s) used for OCR.
NOTE: These options must occur before any configfile.

Single options:
  --help                Show this help message.
  --help-extra          Show extra help for advanced users.
  --version             Show version information.
  --list-langs          List available languages for tesseract engine.

$ tesseract --list-langs
List of available languages (5):
Hangul
Hangul_vert
eng
kor
osd

LSTM 학습

[링크 : https://hongjong.tistory.com/19]

[링크 : https://diyworld.tistory.com/114]

[링크 : https://davelogs.tistory.com/70]

[링크 : https://davelogs.tistory.com/72]

[링크 : https://tesseract-ocr.github.io/tessdoc/]