OpenCV Sample Code

https://user-images.githubusercontent.com/11009876/131844621-a7c43048-edd7-4f74-b85d-7c7bf74f53bb.mp4

undistortion_calibration

• Basic camera calibration using chessboard pattern

undistortion_manual_unified_projection

• Manual camera calibration using the unified projection model for fisheye / omnidirectional camera

projection_points_3d_to_2d

• Projection (3D points (world coordinate) to a 2D image plane) using editable camera parameters

https://user-images.githubusercontent.com/11009876/131841810-3901988e-223f-4ec8-967d-372c6a53de04.mp4

https://user-images.githubusercontent.com/11009876/131841829-4c38c713-fa71-4997-a9df-ca5e35ce348d.mp4

projection_image_3d_to_2d

• Projection (image in world coordinate to a 2D image plane) using editable camera parameters

https://user-images.githubusercontent.com/11009876/131841863-bee26051-f8c0-4dd2-a31c-a4b8f1df722b.mp4

transformation_topview_projection

• Transformation to top view image using projection

transformation_homography

• Homobraphy transformation

https://user-images.githubusercontent.com/11009876/132087422-79d37de1-3ea4-476c-88c1-eb53cf88b492.mp4

distance_calculation

• Distance calculation on ground plane

dnn_face

• Face Detection using YuNet
• Head Pose Estimatino Using SolvePnP
• Overlay icon with transparent mask

dnn_depth_midas

• Depth estimation using MiDaS small V2.1
• You need to download the model
  • from: https://github.com/isl-org/MiDaS/releases/download/v2_1/model-small.onnx
  • to: resource/mdoel/midasv2_small_256x256.onnx

https://user-images.githubusercontent.com/11009876/144711379-a3d4b3c4-86e9-4b33-a90e-b4ac0eb584e2.mp4

reconstruction_depth_to_3d

• 3D Reconstruction
  • Generate 3D point cloud from one single still image using depth map
  • Project these points onto 2D image with a virtual camera

https://user-images.githubusercontent.com/11009876/144705856-8714558e-610f-4087-a194-11e712517b9f.mp4

License

• Copyright 2021 iwatake2222
• Licensed under the Apache License, Version 2.0
  • LICENSE

Acknowledgements

• cvui
  • https://github.com/Dovyski/cvui
  • Copyright (c) 2016 Fernando Bevilacqua
  • Licensed under the MIT License (MIT)
  • Source code is copied
• OpenCV
  • https://github.com/opencv/opencv
  • Licensed under the Apache License, Version 2.0
  • Image files are copied
• OpenCV Zoo
  • https://github.com/opencv/opencv_zoo
  • Licensed under the Apache License, Version 2.0
  • Model files are copied
• MiDaS
  • https://github.com/isl-org/MiDaS
  • Copyright (c) 2019 Intel ISL (Intel Intelligent Systems Lab)
  • Licensed under the MIT License
• https://pixabay.com/ja/
  • room_00.jpg, room_01.jpg, room_02.jpg
• https://www.photo-ac.com
  • fisheye_00.jpg
• YouTube
  • dashcam_00.jpg (Copyright Dashcam Roadshow 2020. https://www.youtube.com/watch?v=tTuUjnISt9s )
• Others
  • https://lovelive-as.bushimo.jp/wp-content/uploads/2019/09/chara_09_stage.png (https://lovelive-as.bushimo.jp/member/rina/ )