. 2021 Dec 3;10(12):1269. doi: 10.3390/biology10121269

Table 1.

Composition of the Wits Face Database [41] CCTV data and detailed data loss experienced during database development as a result of the CCTV systems’ technical limitations.

Database Cohort Organization	Unique Individuals	Photographs	Corresponding CCTV ¹ Recordings	Data Loss (%)
ST ² CCTV ¹—ST ² Photographs	98	980	89	9.2%
Eye-level CCTV ¹—ST ² Photographs	108	1080	76	29.6%
ST ² CCTV ¹ with Cap—ST ² Photographs	45	450	34	24.4%
ST ² CCTV ¹ with Cap—ST ² Photographs	41	410	31	24.4%
Total IP ³ CCTV ¹ Data	292	2920	230	21.2%
Analogue CCTV ¹—ST ² Photographs	111	1110	107	3.6%
CCTV ¹ Grand Totals	403	4030	337	16.4%

¹ CCTV = closed-circuit television; ² ST = standard; ³ IP = internet protocol.