A Multimodal User Authentication System Using Faces and Gestures

Algorithm 1

Pseudocode for the decision module.

Input: Feature matrices of face and gesture for a

probe video with user ID and a threshold

Output: Authentication Result (Accept/Reject)

(1)    Find a gallery data with user ID

(2)   Calculate the distance using (1)

(3)   Align the gesture feature matrix and using DTW

          algorithm

           and have same size.

(4)   Calculate the distance using (1)

(5)   Calculate the likelihood ratio, using (2)

(6)   if    then

(7)         Probe video is accepted

(8)   else

(9)         Probe video is rejected

(10) end if