Could you please explain why we do not need the bw and bh parameters? (I got it that we can take 1 of the 2 since it is a square)
In the lecture, it was told that bx and by are the centers of the rectangle (or square here). But to know the exact shape of the square, we need a length parameter (or a relative length in terms of the grid-cell size)?
Also, is anchoring meaningful when the dimensions of anchor are more than the dimensions of the grid-cell. (like the girl standing before the car example in Andrew Sir’s lecture)
Generally speaking, I did not really get the use of bw and bh in different scenarios say with and without and anchoring. Like they have not been emphasised much in the lectures.
Given that the soft drink can appear as the same size in the image, we know the diameter of the circle.
I found this question a bit vague as well.
Just because
the soft drink can always appear the same size in the image.
doesn’t mean we know what that size is (without the bh and bw).
Perhaps it’s just me, but I would consider rephrasing that question slightly to make it clearer.
If you were running a soda packaging company and knew that there was going to be only 1 type of soda can, wouldn’t you feed this information to your machine? If you did that, there should be no need for the machine to detect width and height.
That requires an assumption of how the system is being used that isn’t specified in the question. Requiring assumptions to be made (no matter how obvious they may be to one person) in order to come to the correct answer seems wrong to me.
I’ve asked a staff to chat with you regarding this.
- Thanks
Hi Christopher_Badman,
I have suggested that the assumption about the size of the can be made explicit in the question. Thanks for your comment!
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