iou_pred_cell_anchor = iou_pred_np[cell_ind, a, :]
_iou_mask[cell_ind, a, :] = cfg.object_scale * (1 - iou_pred_cell_anchor)
when there is no object or the best iou is smaller than thresh, why not just let the value in iou_mask is cfg.noobject_scale, when there is object, let _iou_mask[cell_ind, a, :] to be cfg.object_scale?
when there is no object or the best iou is smaller than thresh, why not just let the value in iou_mask is cfg.noobject_scale, when there is object, let _iou_mask[cell_ind, a, :] to be cfg.object_scale?