how to calculate Camera_FOV by focal and princpt in dataset??

Question

how to calculate Camera_FOV by focal and princpt in dataset??

Opened this issue 8 months ago · 4 comments

MouseChannel commented 8 months ago

thanks

Answer 1 · 2024-02-29T06:19:18.000Z

https://www.edmundoptics.com/knowledge-center/application-notes/imaging/understanding-focal-length-and-field-of-view/

Answer 2 · 2024-02-29T07:10:54.000Z

https://www.edmundoptics.com/knowledge-center/application-notes/imaging/understanding-focal-length-and-field-of-view/

so fov_x = 2 * np.arctan(667 / (2 * camera_param['focal'][1])) where the 667 means the image width.
Is that right?
and princpt is not neccessary in calculate FOV

Answer 3 · 2024-02-29T07:29:09.000Z

https://www.edmundoptics.com/knowledge-center/application-notes/imaging/understanding-focal-length-and-field-of-view/

and the result of fov is about 0.25, there must be something I did wrong

Answer 4 · 2024-02-29T07:36:58.000Z

https://www.edmundoptics.com/knowledge-center/application-notes/imaging/understanding-focal-length-and-field-of-view/

I think image size is not the same thing as Camera_Sensor_size and where I can get the Sensor_Size?