This paper describes a 21-OT~k protocol that can be reduced to a single execution of UOT by using privacy amplification with extractors.

This paper investigates privacy amplification, in which there exists a binary disrete memoryless broad- cast source which transmitting data at very high a rate, and an adversary s memory capacity is limited, no as- sumption about his computing power is made.

This paper investigates the effect of side-information,obtained by the opponent through an initial reconciliation step,on the size of the secret-key that can be distilled safely by subsequent privacy amplification in uncoditionally-secure secret-key agreement protocol based on smooth entropy,and obtains the size of the secret-key with some probability.

Real-time Consistent Illumination Based Video Images in Augmented Reality System;

Study of augmented reality based on artificial mark;

Registration using natural features for augmented reality systems;

Study of three-color fiducial registration for augment reality;

AR(augment reality) is a growing area in virtual reality.

One of the critical technologies of augment reality——the registration of virtual object in augment reality is investigated.