An Incremental Two-Dimensional Principal Component Analysis for Object Recognition

Table 6

Comparison of the running memory on the ORL database.

	2DPCA [12]		I2DPCA		RC2DPCA [18]		IRC2DPCA
	Feature extraction memory(B)	Classification memory(B)	Feature extraction memory(B)	Classification memory(B)	Feature extraction memory(B)	Classification memory(B)	Feature extraction memory(B)	Classification memory(B)
1	8413	8298	8441	8355	8474	8298	8413	8206
2	9060	8351	8421	8339	9252	8302	8437	8306
3	12427	8339	8396	8343	12658	8323	8404	8306
4	15810	8294	8404	8323	16142	8206	8421	8206
5	19169	8318	8404	8327	19603	8227	8429	8231