https://github.com/pacocp/YOLOF
:video_camera: YOLO meets Optical Flow
https://github.com/pacocp/YOLOF
deeplearning object-detection optical-flow yolo
Last synced: about 2 months ago
JSON representation
:video_camera: YOLO meets Optical Flow
- Host: GitHub
- URL: https://github.com/pacocp/YOLOF
- Owner: pacocp
- Created: 2019-04-23T19:42:45.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2022-10-13T06:34:17.000Z (over 2 years ago)
- Last Synced: 2024-11-09T18:42:42.688Z (7 months ago)
- Topics: deeplearning, object-detection, optical-flow, yolo
- Language: Python
- Homepage:
- Size: 2.64 MB
- Stars: 8
- Watchers: 3
- Forks: 3
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-yolo-object-detection - pacocp/YOLOF
- awesome-yolo-object-detection - pacocp/YOLOF
README
# YOLOF
## YOLO meets Optical Flow
---
### 1. Introduction
Why to combine YOLO and Optical Flow?
- To compute only the optical flow of objects we look for.
- Reduce computational cost.
### 2. Algorithm
1. Object detection in the actual frame using YOLO.
2. Initialize a zero matrix with the same height and width as the frame.
3. For each object that has been detected:
1. Extract a *patch* corresponding to the object's bounding box in the frame.
2. Compute optical flow between that patch and its corresponding one in the previous frame.
3. Insert the computed optical flow in the matrix.
4. Show the matrix that has been created.
### 3. Implementation
- Python 3.6.
- YOLO [1] and Farneback [2] implementations in OpenCV 3.4.0.
- Numpy and imutils.
- Weights of YOLO Lite [3].
All the requirements are in the *requirements.txt* file.
```
pip install -r requirements.txt
pip install opencv-python
```
### Bibliography
[1] You only look once: Unified, real-time object detection. **J. Redmon, S. Divvala, R. Girshick, and A. Farhadi.**
[2] Two-frame motion estimation based on polynomial expansion. **G. Farnebäck.**
[3] Yolo-lite: A real-time object detection algorithm optimized for non-gpu computers. **R. Huang, J. Pedoeem, and C. Chen.**
#### Acknowledgments
Great help from this Github repository: https://github.com/iArunava/YOLOv3-Object-Detection-with-OpenCV