Extract Body

The main idea of the algorithm is to use the color depth image to find regions, I iterate over these, and check if there is one that has a minimun area to be considered as a body and check if this one has 'heat' inside, checking the red pixels in each RGB, if those conditions are accomplished is probable that we have a body.

Difficulties

• find the proper values to do the segmentation stage, if this stage fails the whole result will be affected
• It is possible that fails if we have a big element that generates heat, since it will be accomplished the two conditions 'area and heat'
• The ilumination makes the segmentation process fail.

Complexity

Give an Image I(x,y) of dimensions N, M

• memory: O(KNM) K number of copies
• time: the method who is more expensive in time is extract.selectValidBodies, then I will just describe the complexity for this method O(len(contours) * K * N * M)

Results

Future work?

• check the shape, and if this shape has some features that describe a human body.
• It is slow, I propose think in other approach or migrated to c++
• there is some code that could be code in parallel, that will improve the performance

References

• Documentation OpenCV

Thanks for reading my code :v