YOLO algorithm Grid Cell Coordinates

[Kaiju]

are bx, by coordinates relative to grid cell coordinates? i.e. 0 - 1 or is it relative to the image?
Does bx, by correspond to center of the object if the center is within the grid cell? or can the part of the object be within the grid cell with center elsewhere?
will the grid cell return bx, by if part of the object is detected, but the center is in another cell? Or does the first element of the prediction pc mean the center of the object is in the cell or center of the object in the cell?

[ai_curious]

Maybe take a look at this existing thread and let us know if it helps answer your questions…

Deep dive on the YOLO v2 localization predictions

YOLO v2 makes 3 types of predictions on an image region. Is there an object there at all? What is it? Where is it? This thread examines the latter, the localization predictions. There are five sets of numbers that play a role in these predictions; everything from converting 3^{rd} party training data to visualizing predicted bounding boxes on an image. There is some flexibility in the which set of numbers is used where, but they have to all be aligned and used consistently. Here are the p…