Scalable multiple descriptions on packets networks via the n-dimensional Mojette transform
Benoît Parrein, Pierre Verbert, Nicolas Normand, Jeanpierre Guédon · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2001
The Mojette transform is a discrete projector generating bins from ixels (information elements) values. The initial bitstream is first rearranged into a 2D or n-dimensional box of ixels. Each bin value (belonging to a (n-1)-dimensional projection) is computed as the XOR addition of ixels belonging to a discrete line which fix the projection direction. The major advantage of this transform is the linear complexity (both in the number of ixels and the number of projections) for encoding and decoding. Each packet contains a projection, and additional projections can be computed without slowing the network flow. The size of this n-dimensional buffer is tuned according to the real- time constraints and to the desired packet size.