Wiener filtering for generalized error resilient time domain lapped transform

In this paper, we revisit the design of the time-domain lapped transform for error resilient image transmission. A general structure is first proposed whose solution is given by a Wiener filter. Two simplified schemes with different tradeoffs between complexity and performance are then developed, for which Wiener filter solutions also exist. We show that the existing method is a special case of the general scheme. Design examples and image coding experiments verify that the performance of our new approach is significantly better than existing techniques.