My Problem ist actually simple: I am trying to take photos of flat surface items (large flags, large maps, antique rugs and so on) in a room that does not offer enough height.
I have been "researching" this matter for quite some time now but haven't found a solution for this yet. I am an absolute amateur in regards to photography, I am however quite capable in IT matters (programming, scripting).
The objects are too large or often too fragile to mount them on a wall, so taking the photo from the ceiling would be my approach. A "vertical setup" would be advantageous for the large quantity of items as they could just be laid out flat one piece at a time.
The measurements and forms vary but let's say that I need to capture about 5.50 x 4.50 meters from a maximum distance of 2.30 meters.
I do not need any depth/perspective. Just an orthogonal and planar surface image. Field of view, Zoom factor and focus may remain fixed as I would crop the items in Photoshop and due to the fixed nature of the room height.
Detail/Resolution need not be as high as in art photography. But color and form have to be as it were a single photo.
My ideal result would be something like what a flatbed scanner would create. Not mechanically of course but in terms of capturing.
I know about fisheye lenses, however I fear that correcting the distortion would not work on larger items or not even work at that distance and these dimensions. Details at the edge of the object cannot turn out to be blurry. Looking into panorama photography I've only found solutions for rotating cameras. I'd much more prefer a kind of matrix of multiple cameras. I reckon 2 or 3 cameras would suffice. Syncing multiple DSLRs or even GoPros seems to be a popular thing nowadays and there is lots of material to read, but everything i found concentrates on either 3D capturing, timelaps/bullet-effect or 360° videos. I have not been able to find a solution for an array of cameras just "scanning" or stitching together a surface. Except for satellite/drone image stitching which would be exactly what I wanted, but in one synced up shot and with all the automation which this fixed setup would theoretically allow.
My ideal setup would be as fixed as possible once calibrated. Actually the camera(s) would be dedicated and should not have to be touched at all and remain connected to a power source / cable or wifi at all time to avoid movement. I have looked into photo stitching with Hugin, but I am unsure how much automation would be possible. Also I am unsure which cameras (dslr or not) would be right (centralized trigger).
Let's assume that I would be willing to buy all equipment necessary as long as it is consumer grade price level. Lighting would be installed in the same step.
I have read through lots of answers here on stackexchange and elsewhere. There is one interesting comment here https://photo.stackexchange.com/a/57219 but the author (Unapiedra) does not describe the actual implementation of the solution sufficiently.
Thank you in advance for any helpful answers or pointers in the right direction.