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Scalable Coding of Motion and Depth Fields with Shared Breakpoints

Citation Author(s):
Reji Mathew, Yue Li, David Taubman
Submitted by:
Reji Mathew
Last updated:
20 September 2021 - 12:49am
Document Type:
Presentation Slides
Document Year:
2021
Event:
Presenters Name:
Reji Mathew
Paper Code:
1965
Categories:

Abstract 

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.

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