Enhancing Accuracy in a Touch Operation Biometric System: A Case on the Android Pattern Lock Scheme

Table 4

Feature extraction of objectives 1 and 2.

	Objective 1–simple TOD	Objective 1–simple TBD	Objective 2–complex TOD	Objective 2–complex TBD
Feature data per input cycle	10	8	14	12
No. of input cycles	3	3	3	3
Total data per user	30	24	42	36
No. of users	8	8	8	8
Total feature extracted data	240	192	336	288