Factorization of nonuniform block orthogonal transforms
نویسندگان
چکیده
Block orthogonal transforms (BOT's) are commonly used for lots of applications. Conventional BOT's are based on uniform lter banks, however, nonuniform BOT's are often superior to uniform ones. In this research, we investigate the factorization of nonuniform BOT's which does not involve the tree structure. Therefore, optimal nonuniform BOT's are available in the sense of transform coding gain. Some design examples are included to con rm our theory. We also apply the nonuniform BOT to the transform image coding.
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