Removing gaps between the boundary or filling inside the boundary

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BlueBee77 2016-5-5

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评论： BlueBee77 2016-5-9

Can anyone help in how to join the discontinuous boundary of this image. And how to fill inside this boundary. the image is obtained using 'Sobel edge detector in Matlab'.

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Answer 1

Image Analyst 2016-5-5

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Sobel is probably not good, or not enough. If it's a video of a person walking, try optical flow. Why do you think edge detection is the best approach?

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BlueBee77 2016-5-9

I tried the other edge detectors but they are giving some extra details. Sobel is good because it gives less detail and i am interested only in the boundary. Dilation and erosion gives exactly what i need (filling inside the boundary). But the problem comes when there is a long gap in the boundary. I need a perfect human silhouette, does optical flow can help me in getting a perfect boundary? And what you think about Viola jones?

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