Got wrong test results about AP(area=medium)

[IreneLu12]

Hi, I just cloned the code and installed cocoAPI from GitHub. But I got wrong test results about AP(area=medium) when I ran test.py as your introductions in OCHuman dataset. The model is 'pose2seg_release.pkl' and the test results are as follows.

Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.573
Average Precision (AP) @[ IoU=0.50 | area= all | maxDets=100 ] = 0.945
Average Precision (AP) @[ IoU=0.75 | area= all | maxDets=100 ] = 0.637
Average Precision (AP) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = -1.000
Average Precision (AP) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.073
Average Precision (AP) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.580
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 1 ] = 0.422
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 10 ] = 0.682
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.682
Average Recall (AR) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = -1.000
Average Recall (AR) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.550
Average Recall (AR) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.682
[POSE2SEG] AP|.5|.75| S| M| L| AR|.5|.75| S| M| L|
[segm_score] OCHumanVal 0.573 0.945 0.637 -1.000 0.073 0.580 0.422 0.682 0.682 -1.000 0.550 0.682

Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.547
Average Precision (AP) @[ IoU=0.50 | area= all | maxDets=100 ] = 0.937
Average Precision (AP) @[ IoU=0.75 | area= all | maxDets=100 ] = 0.582
Average Precision (AP) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = -1.000
Average Precision (AP) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.064
Average Precision (AP) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.549
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 1 ] = 0.379
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets= 10 ] = 0.649
Average Recall (AR) @[ IoU=0.50:0.95 | area= all | maxDets=100 ] = 0.649
Average Recall (AR) @[ IoU=0.50:0.95 | area= small | maxDets=100 ] = -1.000
Average Recall (AR) @[ IoU=0.50:0.95 | area=medium | maxDets=100 ] = 0.300
Average Recall (AR) @[ IoU=0.50:0.95 | area= large | maxDets=100 ] = 0.650
[POSE2SEG] AP|.5|.75| S| M| L| AR|.5|.75| S| M| L|
[segm_score] OCHumanTest 0.547 0.937 0.582 -1.000 0.064 0.549 0.379 0.649 0.649 -1.000 0.300 0.650

Why the AP(area=medium) are extremely low?

And I also have another question about the OCHuman dataset. I updated the dataset to the latest version, but I found the validation contains 4291 instances and the test contains 3819 instances, which is still not consistent with the description in the paper. Is there a problem with my dataset？