On: Apple's Dimensional Drawings

[elyall]

https://www.carsized.com/en-us/

[dllu → elyall]

That's not the same thing as those are photos with perspective distortion.

[qingcharles → dllu]

Interesting point. They need to photograph them with slit-scan photography.

[dllu → qingcharles]

haha, I see you recognized me from my line scan photography work. But unfortunately that only gets rid of perspective in one axis but not the other.

Probably just taking photos with a really long telephoto lens would be good.

In theory, you'd use a telecentric lens [1], but then the lens would need to be bigger than the subject, which is not super feasible for a car-sized subject. I guess for line scan, the telecentric lens just needs to cover a small vertical strip of the car so it just needs to be really tall.

[1] https://en.wikipedia.org/wiki/Telecentric_lens

[qingcharles → dllu]

Haha, I didn't recognize your username, but now I look at your blog it was your work I was thinking of :)

Well, that screws my idea then. Best to just 3D scan the cars and model them in 3D with no perspective then!

[IshKebab → dllu]

Presumably they scale the photo to the actual measured dimension though, so at worst it will make the car look a bit weird.