/sci/ - Science & Math » Thread #12934322

33KiB, 155x199, IMG_20210406_194236.jpg

View Same Google iqdb SauceNAO

Anonymous Tue 06 Apr 12:48:11 2021 No.12934322 View Reply Original Report

Quoted By: >>12934366

what can i do to find position(red), length(blue),angle(green) of given 3d subject in 2d screen. how many ways does there exist

Anonymous

Anonymous Tue 06 Apr 2021 13:05:11 No.12934366 Report

Quoted By: >>12934382 >>12934785

>>12934322
Do you have some reference to measure length? Do you have some reference to the coordinate system? Otherwise you can choose one of the points to be the origin (0,0,0)

The angle looks like a right angle given the perspective.

Anonymous

Anonymous Tue 06 Apr 2021 13:12:51 No.12934382 Report

Quoted By:

>>12934366
i see.. of course it s a right angle. then is the length also true to original 3d shape or is it tweaked by the perspective

Anonymous

Anonymous Tue 06 Apr 2021 13:23:39 No.12934416 Report

Quoted By: >>12934527 >>12934554

this will probably be overly advanced, but look into bundle adjustment

Anonymous

Anonymous Tue 06 Apr 2021 14:01:02 No.12934527 Report

Quoted By:

>>12934416
seems very mechanical and works for 3d precision..... mine is only 2d screenspace...

Anonymous

Anonymous Tue 06 Apr 2021 14:07:45 No.12934554 Report

Quoted By:

>>12934416
i mean is it the same?

Anonymous

Anonymous Tue 06 Apr 2021 15:06:29 No.12934785 Report

Quoted By:

>>12934366
no the angle is not rigt angle in perspective

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches