topic Can i get a display coordinate from World coordinate? in Items with no label

Can i get a display coordinate from World coordinate?

松拓也 — Wed, 22 Feb 2017 04:08:07 GMT

Can i get a display coordinate from World coordinate?

I want to know where i am looking at display.

(It's not world.image coordinate.)

Re: Can i get a display coordinate from World coordinate?

MartyG — Wed, 22 Feb 2017 08:07:53 GMT

Usually people want to convert color (display) to depth (world), so your request is reversed from the norm.

For your needs, an SDK instruction called ProjectCameraToColor may be suitable. "The ProjectCameraToColor function projects an array of world coordinates to the color image coordinates."

https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/projectcameratocolor_pxcprojection.html ProjectCameraToColor

Re: Can i get a display coordinate from World coordinate?

jb455 — Wed, 22 Feb 2017 10:39:30 GMT

How are you getting your world coordinates? I get mine from ProjectColourToCamera, which means the nth element in the world coordinates array is the nth pixel in the colour image, so as long as my world coordinates array stays in the same order I know which colour pixel it represents. If you don't currently do any mapping between the colour and depth images, Marty's suggestion might be easiest to implement.

Re: Can i get a display coordinate from World coordinate?

idata — Fri, 24 Feb 2017 21:03:29 GMT

Hi jazz_up_feeling_0809,

Do you still need assistance on this case? Did you find the answer you were looking for?

We'll be waiting for your response.

-Sergio A

Re: Can i get a display coordinate from World coordinate?

松拓也 — Mon, 27 Feb 2017 06:01:01 GMT

Hi.

Sorry for my late reply.

Many Thanks. I'll try it!

Re: Can i get a display coordinate from World coordinate?

松拓也 — Mon, 27 Feb 2017 06:07:32 GMT

I get the world coordinate to method below.

https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/doc_face_face_landmark_data.html Face Landmark Data [+JS,UWP]

Once, I'll try Marty's method.

Thank you for your help!

Re: Can i get a display coordinate from World coordinate?

idata — Mon, 27 Feb 2017 20:34:12 GMT

Hi jazz_up_feeling_0809,

Keep us updated on your progress. If you have any questions, don't hesitate to ask.

-Sergio A