Paper ID | COM-3.3 | ||
Paper Title | SCALABLE CODING OF MOTION AND DEPTH FIELDS WITH SHARED BREAKPOINTS | ||
Authors | Reji Mathew, Yue Li, David Taubman, University of New South Wales, Australia | ||
Session | COM-3: Image and Video Communications | ||
Location | Area H | ||
Session Time: | Tuesday, 21 September, 13:30 - 15:00 | ||
Presentation Time: | Tuesday, 21 September, 13:30 - 15:00 | ||
Presentation | Poster | ||
Topic | Image and Video Communications: Lossy coding of images & video | ||
IEEE Xplore Open Preview | Click here to view in IEEE Xplore | ||
Abstract | A new breakpoint adaptive DWT, referred to as tri-break, is currently being considered by standardization efforts in relation to JPEG 2000 Part 17 extensions. We first provide a summary of the tri-break transform and then explore its performance for coding motion fields. Experimental results show that significant gains can be achieved for coding piecewise smooth motion flows by employing the tri-break transform. We demonstrate the feasibility of utilising a common set of breakpoints for compressing depth maps and motion fields anchored at the same frame. We also extend prior work to decode motion vector fields directly onto a triangular mesh, enabling operations such as view warping to be defined on triangular cells which can be efficiently processed by GPU based architectures. |