Joshua Smith of Intel describes Electric Field Imaging, a non-contact means for tracking human body pose and motion that is now in broad commercial use for automobile passenger airbag suppression. This colloquia presentation also outlines FiberFingerprint, an authentication and identification technique for physical documents or objects that uses intrinsic, naturally occurring microscopic surface irregularities as a 'fingerprint.' Smith describes recent work with colleagues at Intel Research Seattle and University of Washington on WISP (Wireless Identification and Sensing Platform). WISP supports sensing, general purpose computation, and wireless communication, yet requires no batteries. WISPs are read and powered wirelessly, by ordinary standards-compliant Radio Frequency Identification (RFID) readers. From the Series:CSE Colloquia - 2005