Improvement of the Discrete Cosine Transform calculation by means of a recursive method
作者： María Teresa Signes , Juan Manuel García , Higinio Mora
DOI: 10.1016/J.MCM.2009.05.004
关键词: Weighting 、 Mathematics 、 Discrete cosine transform 、 Compression (functional analysis) 、 JPEG 、 Table (database) 、 Transmission (telecommunications) 、 Function (mathematics) 、 Algorithm
摘要: This paper presents a recursive method for function evaluation. The proposal argues the use of more complete primitive, namely weighted sum, which converts calculation values into operation defined by two input table. sum can be tuned different weighting parameters that hold features concrete evaluated function. Discrete Cosine Transform (DCT) is improved this provides decrease count as well an acceptable error bound. These results have repercussions on compression standard JPEG, purposes storage and transmission in web-based applications
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