Title :
Direct computation of length-N DHT from three adjacent length-N/3 DHT coefficients
Author :
Wu, Jiasong ; Wang, Lu ; Shu, Huazhong ; Senhadji, Lotfi
Author_Institution :
Lab. of Image Sci. & Technol. (LIST), Southeast Univ., Nanjing, China
Abstract :
A fast direct method for obtaining the length-N discrete Hartley transform (DHT) coefficients from three adjacent length-N/3 DHT coefficients is presented. The proposed method reduces significantly the number of arithmetic operations compared to the traditional approach. Furthermore, it is easy to implement.
Keywords :
discrete Hartley transforms; DHT coefficient; arithmetic operation; discrete Hartley transform coefficient; Algorithm design and analysis; Biomedical imaging; Computational complexity; Discrete cosine transforms; Image coding; Signal processing algorithms; compressed-domain processing; discrete Hartley transform; fast algorithm;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5648074
