Fixed-point arithmetic for mobile devices: a fingerprinting verification case study
Yiu-Sang Moon, Franklin T. Luk, Ho C. Ho, T. Y. Tang, Kit Chak Chan, C. W. Leung · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
Mobile devices use embedded processors with low computing capabilities to reduce power consumption. Since floating-point arithmetic units are power hungry, computationally intensive jobs must be accomplished with either digital signal processors or hardware co-processors. In this paper, we propose to perform fixed-point arithmetic on an integer hardware unit. We illustrate the advantages of our approach by implementing fingerprint verification on mobile devices.