Re: [mediacapture-image] Add pan and tilt constraints

> Many of these cameras reporting pan and tilt have it as a feature of the CMOS chip used, like this one here.

That sensor has max 1 degree rotation. Lets say, with 50-60 deg FOV for webcam, that would not be much of a pan / tilt.

> EDIT: Doing some more research, it's a bit of a jumble on what this is called in literature, but it's usually electronic or digital pan/tilt/zoom. Sometimes called ePTZ or digital PTZ.

If I remember correctly term digital PTZ is mostly used for security IP cams with ultra wide FOV. Stream from such cameras can be projected (perspective projection) to normal FOV and users can pan / tilt digitally.

@dsanders11 Do you think pan / tilt rotations need to be with less than 1 degree steps? Can `long` be used instead of `double`? If you think that roll can be added later, I think it is fine. In my opinion, roll can be important for leveling horizon when mechanical pan/tilt/roll is used, gimbals, drones, etc. BTW, did you check my question about pan tilt roll order? I still think it is important, that is why it is PanTilt or PanTiltRoll, standard Euler angles rotation order (ZYX, yaw-pitch-roll)

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Received on Monday, 19 June 2017 07:58:17 UTC