My graduation project is indoor navigation system for blind people so I need to implement obstacle detection using android and open CV, I followed these steps but accuracy is not good :
1- convert to grayscale
2-canny function to detect edges
3- dilate the detected edges by 500%
4- blur the image using a Gaussian blur
5- use findContours function to detect closed shapes and draw bounding circles around the shapes
any help with paper or algorithm I should follow??
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