Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Collapse
Brand Logo

ModalAI Forum

  1. ModalAI Support Forum
  2. VOXL 2 and VOXL 2 Mini
  3. Stereo Camera Extrinsics

Stereo Camera Extrinsics

Scheduled Pinned Locked Moved Unsolved VOXL 2 and VOXL 2 Mini
voxl-2
5 Posts 3 Posters 1.0k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • Abdullah01A Offline
    Abdullah01A Offline
    Abdullah01
    Contributor
    wrote on last edited by
    #1

    Hi,

    I am working on a custom vox2 body frame, and working on a custom stereo camera extrinsics file as well.

    I came cross some thing unclear which are the imu_apps - Stereo front/lower upper translation & Rotation.

    It is not clear what distances are they for the front and upper. Can you clear what distances are they?

    thank you

    Abdullah01A 1 Reply Last reply
    0
    • Abdullah01A Abdullah01

      Hi,

      I am working on a custom vox2 body frame, and working on a custom stereo camera extrinsics file as well.

      I came cross some thing unclear which are the imu_apps - Stereo front/lower upper translation & Rotation.

      It is not clear what distances are they for the front and upper. Can you clear what distances are they?

      thank you

      Abdullah01A Offline
      Abdullah01A Offline
      Abdullah01
      Contributor
      wrote on last edited by
      #2

      @Abdullah01

      for more details, this a pic of the drone setup Here

      As you can see VOXL2 is filliped and rotates. Also, the Custom Extrinsixs Config for this setup like this

      			"parent":	"imu_px4",
      			"child":	"imu_apps",
      			"T_child_wrt_parent":	[0.02525, -0.01375, 0.0],
      			"RPY_parent_to_child":	[0, 0, 0]
      		}, {
      			"parent": "imu_apps",
      			"child":  "tracking",
      			"T_child_wrt_parent": [-0.1125, 0.0055, 0.018],
      			"RPY_parent_to_child":    [0, -45, -90]
      		}, {
      			"parent": "imu_px4",
      			"child":  "tracking",
      			"T_child_wrt_parent": [-0.08775, -0.0066, 0.018],
      			"RPY_parent_to_child":    [0, -45, -90]
      		}, {
      

      thank you

      tomT 1 Reply Last reply
      0
      • Abdullah01A Abdullah01

        @Abdullah01

        for more details, this a pic of the drone setup Here

        As you can see VOXL2 is filliped and rotates. Also, the Custom Extrinsixs Config for this setup like this

        			"parent":	"imu_px4",
        			"child":	"imu_apps",
        			"T_child_wrt_parent":	[0.02525, -0.01375, 0.0],
        			"RPY_parent_to_child":	[0, 0, 0]
        		}, {
        			"parent": "imu_apps",
        			"child":  "tracking",
        			"T_child_wrt_parent": [-0.1125, 0.0055, 0.018],
        			"RPY_parent_to_child":    [0, -45, -90]
        		}, {
        			"parent": "imu_px4",
        			"child":  "tracking",
        			"T_child_wrt_parent": [-0.08775, -0.0066, 0.018],
        			"RPY_parent_to_child":    [0, -45, -90]
        		}, {
        

        thank you

        tomT Offline
        tomT Offline
        tom
        admin
        wrote on last edited by
        #3

        @Abdullah01 Have you read through?: https://docs.modalai.com/configure-extrinsics/

        Abdullah01A 1 Reply Last reply
        0
        • tomT tom

          @Abdullah01 Have you read through?: https://docs.modalai.com/configure-extrinsics/

          Abdullah01A Offline
          Abdullah01A Offline
          Abdullah01
          Contributor
          wrote on last edited by
          #4

          @tom Yes I have read it, but it did not mentioned any thing about Stereo front/lower upper

          S 1 Reply Last reply
          0
          • Abdullah01A Abdullah01

            @tom Yes I have read it, but it did not mentioned any thing about Stereo front/lower upper

            S Offline
            S Offline
            SMRazaRizvi
            Regular
            wrote on last edited by
            #5

            @Abdullah01 Hi, did you solve this?

            1 Reply Last reply
            0

            Reading along? Create a free ModalAI Forum account to join in.

            With an account you can reply, ask your own question, get an email when a ModalAI engineer answers, and mark the reply that solved it. Your place in each thread is saved between visits.

            Questions about VOXL, Flight Core, ESCs and ModalAI drones are answered here by the engineers who build them.

            Register Login
            Reply
            • Reply as topic
            Log in to reply
            • Oldest to Newest
            • Newest to Oldest
            • Most Votes


            ModalAI
            Categories Recent Tags ModalAI.com Docs
            © 2026 ModalAI® · Accelerating autonomy for smaller, smarter, safer drones · Powered by NodeBB
            • Login

            • Don't have an account? Register

            • Login or register to search.
            • First post
              Last post
            0
            • Categories
            • Recent
            • Tags
            • Popular
            • Users
            • Groups