Performance of the Lapped Orthogonal Transform

Daniel Veiner <dveiner@Stanford.Edu>

I plan to work on the Lapped Orthogonal Transform project. A Lapped
Orthogonal Tranform coder will be implemented in Matlab. Attention will
be paid to efficency in computation. The coder will be compared to the
standard DCTII coder, and a comparison's will be made for varying PSNR's
and varying block-lengths. As the Lapped Orthogonal Transform is meant
to alleve blocking effects and ringing effects, visual comparisons will
also be made to determine if these effects are truly eliminated for
coarse quantization scales. Uniform Entropy coding will be assumed but a
Huffman Code will not actually be implemented, just simulated. PSNR - R
curves will be generated to compare methods. In summary, the LOT will be
compared to the DCTII in terms of distortion and visual effects.