bounding box information

[ziyi-yang]

Hello,

Thanks for open-sourcing the dataset. May I ask a few questions about the bounding box information?

First, in the json files, what does height, width, x and y stand for? E.g., does x and y stand for the middle point of the bounding box or the left upper corner?

Second, how can I find the overall width and height of the document? (This information is to normalize the bounding box coordinates between [0, 1])

Thanks.

[galaxyChen]

For the first question, the (x, y) is the left upper corner. For the second question, the overall width and height can be found by looking at the root element (the element with the smallest id).