- #1

DaveC426913

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Say I want to obtain an image of an object (eg. a toy car) from every possible angle in 3-dimensions, in, say, 15 degree increments. How many pictures would I need to take?

The immediate answer is 576.

1] Rotate the car around X axis through 360 degrees in 15 degree increments. Take 24 pictures.

2] Now rotate the car around Y axis by 15 degrees.

3] Repeat steps 1 and 2 23 more times.

24x24=576.

But here's the thing, many shots will be duplicates, merely the same angle of the object but with the image rotated.

So, what is the

__minimum__number of pictures I would need to take?

It occurs to me that this might be simpler if I left the object stationary and moved the camera. Then I would sidestep the whole duplicate angle thing...