From: http://image-net.org/download-bboxesRemark: In the bounding box annotations, there are two fields(<width> and <height>) indicating the size of the image. The location and size of a bounding box in the annotation file are relative to this size. However, this size may not be identical to the real image size in the downloaded package. (The reason is that the size in the annotation file is the displayed size in which the image was shown to an annotator). Therefore to locate the actual pixels on the original image, you might need to rescale the bounding boxes accordingly.
But there are inconsistencies within the xml file. How are you folks dealing with the problem? Currently, I am just ignoring such annotations.