The anchors for 640 input size

[liamsun2019]

Hi author,

Thanks for your excellent work. For yolo pose, the default anchors in models/hub/yolov5s6_kpts_ti_lite.yaml look the same as "anchors_p6_1280" defined in models/hub/anchors.yaml. My question is, if I select 640 as the training input size, should I apply "anchors_p6_640" instead of "anchors_p6_1280" correspondingly? Appreciate your help and thanks for your time.