CSCI1430 : Project 5 Tracking and Structure from Motion

yunzhang

The goal of this assignment is to reconstruct the 3D shape of an object from a series of video sequence.

Keypoint Selection

Top 500 strongest intesting ponts are tracked.

Feature Tracking

A KLT tracker with iterative refinement has been implemented.

Visualization of optical flow

2D paths of top 50 points with largest movement.

Points that have moved out of frame

Notice that green points have been moved out

Structure From Motion

A KLT tracker with iterative refinement has been implemented.

Strcture from different view points

Camera directions for each dimension

Extra Credit

Iterative refinement enhances the result of tracking. Maximum iteration number is 50. However, the loop will end if I_t start to increase, or the total differnece over frame is small than 50.