Title :
A low-power image convolution algorithm for variable voltage processors
Author :
Kwon, Hyugjin ; Kim, Jihong
Author_Institution :
Sch. of Comput. Sci. & Eng., Seoul Nat. Univ., South Korea
Abstract :
We describe a low-power image convolution algorithm for variable voltage processors. The algorithm takes advantages of common properties of popular kernels. Unlike a direct algorithm of convolution operation where the dynamic voltage scaling (DVS) feature of variable voltage processors cannot be used, our algorithm modifies the sequence of computing convolution sums so that DVS can be effectively utilized. Our implementation on Itsy, a DVS research platform from Compaq, shows the energy saving of up to 71% over that of the direct algorithm without any performance degradation.
Keywords :
convolution; digital signal processing chips; image processing; power consumption; Compaq; DVS research platform; Itsy; dynamic voltage scaling; energy saving; kernels; low-power image convolution algorithm; variable voltage processors; Application software; Circuits; Clocks; Computer science; Convolution; Dynamic voltage scaling; Energy consumption; Kernel; Threshold voltage; Voltage control;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1202457
