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Table 3 Performance comparison of different image auto-focusing algorithms with variation of light intensity index

From: An image auto-focusing algorithm for industrial image measurement

  Brake pad Bearing
AF1 AF2 AF3 AF4 AF1 AF2 AF3 AF4
RMSE(mm) 0.0053 0.0093 0.0095 0.0024 0.0057 0.0089 0.0089 0.0028
SD(mm) 0.0044 0.0068 0.0063 0.0024 0.0051 0.0063 0.0076 0.0023
T(mm) 0.0180 0.0330 0.0370 0.0050 0.0280 0.0370 0.0290 0.0052
  Big standard cuboid Small standard cuboid
RMSE(mm) 0.0110 0.0110 0.0140 0.0021 0.0107 0.0121 0.0137 0.0020
SD(mm) 0.0099 0.0106 0.0132 0.0020 0.0101 0.0115 0.0131 0.0019
T(mm) 0.0290 0.0270 0.0310 0.0060 0.0280 0.0330 0.0320 0.0060