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Table 2 The APLR and APHR values for various descriptors with K-99 database

From: A modified shape context method for shape based object retrieval

  Avg. precision
Descriptor Recall < =50% Recall >50% Average
BSC 86.01 51.25 68.63
MSC 89.11 56.87 72.99
BSC + GD 87.21 57.82 72.52
MSC + GD 90.77 62.43 76.60
ARTD 84.26 45.72 64.99
MI 81.96 44.74 63.35
ZMD 89.61 61.37 75.49
CSSD 82.32 44.11 63.22