Wednesday, 25 June 2014

Summary of Weekly Meeting - (15)

I. To validation:
    - Take videos from Webcam
    - Use only few points: 4 is decided
    - Do "3D-World-position -> 2D-webcam-Image-position of points" with output parameters of EPnP including Rp, Tp, and Intrinsic
    - Read references and document related to "Ray tracing" & "3D coordinate from 2D calibrated camera (...interesting approach)"

George's hint.


II. Preliminary testing results for Kin2Webcam with EPnP:

Case 1: Chessboard lies on the table.



Case 2: Chessboard lies on the table.



Case 3: Chessboard lies above the table.



Case 4: Chessboard lies above the table.


III. Write a report to list and summarize my steps for how to using EPnP


IV. Write codes to do "3D-World-position -> 2D-webcam-Image-position of points", a pre-testing result like following:

     - In this case, the error is 3.419 by using EPnP+Gaussian

Left: Kinect frame (3D Info); Right: Webcam Img (2D Info)


Top: Projection result of 4 selected points from 3D-World-Coord -> 2D-Webcam-Img-Coord; Bottom: "+GT" is in Kinect-World-Coord and "+EGN/+E" is in Webcam-Img-Coord. GT means ground truth 3D position, +EGN/+EN means values computing by EPnP.






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