DocumentCode
3288710
Title
A new type of integer DCT transform radix and its rapid algorithm
Author
Wu Junqin ; Li Yanli
Author_Institution
Inf. Eng. Inst., Jiangxi Univ. of Sci. & Technol., Gan´zhou, China
fYear
2011
fDate
15-17 April 2011
Firstpage
1063
Lastpage
1066
Abstract
Without changing the features of the integer DCT transform radix, improve on its matrix filling rules and get a new type of integer DCT transform radix. Other than orthogonality, such a variety of integer DCT transform radix also meet the quantity relationships between elements of an integer as a matrix, and the normalized coefficients matrix have similar characteristic with the original DCT matrix. This type of transform radix can be implemented by rapid butterfly algorithm, in such fast algorithm implementation of integer DCT, no multiplication, just additions and shifts operations. This fast algorithm of integer DCT ensure the accuracy of transformation operations, reduce the complexity of the transformation operations.
Keywords
discrete cosine transforms; matrix algebra; video coding; DCT; image coding; integer transform radix; matrix filling rules; normalized coefficients matrix; video compression; Accuracy; Complexity theory; Discrete cosine transforms; Encoding; Matrix decomposition; Quantization; complexity; integer DCT transform; rapid algorithm; transform radix;
fLanguage
English
Publisher
ieee
Conference_Titel
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-8036-4
Type
conf
DOI
10.1109/ICEICE.2011.5778056
Filename
5778056
Link To Document