PanoTools:
Re: Stitching ultra large panoramas
Luca Vascon 2006-May-30 16:16:04
One issue could be:
1: Focusing: using a long tele this is chritical. You may have misfocused
parts or you will have to refocus the lens: This changes the FOV. Not so
noticeable with a very long telelens, I hope....
----- Original Message -----
From: "reinhard schartel" <#removed#>
To: <#removed#>
Sent: Tuesday, May 30, 2006 10:19 AM
Subject: [PanoTools] Stitching ultra large panoramas
> Hi, everyone.
>
> The largest "panos" I stitched are (164256 x 63840 pixel) ( 10,4 GPixel)
> (10.May 2006)
> another pano (322944 x 77440 pixel) ( 24 Gigapixel) (25.May 2006)
>
>
> It is not a REAL panorama because the 2835 Source-Images are
> Computer generated to test my Software. All other steps to create the
> panos are REAL.
> It is not a problem to stitch ultra large Panos ( 50 GPixel and more )
> because the
> required hardware-resources ( Diskspace and Computertime )are linear
> in "NumberOfSourceImages" (see below).
>
> But three problems I have still to solve.
> 1.)-I don't know how to handle that large OutputPanoFile ( 30 Gbyte).
> To handle that huge File, I split the Outputfile into 70 TIFF-Files,
> 435MB each.
> What can I do with such an ultra large pano? Is there any application ?
> Now it's only a challenge.
> 2.)-creating the Controlpoints of a REAL 10.4 GPixel pano.
> 3.)-shut the 2500 Source-Images.
>
> The software is ready to stich a REAL 10 GigaPixel pano.
> First of all, I have to get a computer-controlled motorized camera to shut
> about 2500 Images.
>
> I'll report again, when it's done.
> Reinhard
>
>
> Details 10Gpixel pano: (10.May 2006)
> ====================================
> panosize: 164256 x 63840 pix
> 354^ x 137^ (degrees)
> 105 images per row
> 27 images per collumn
>
>
> Source imagesize: 2304 x 3072 pix ( 7 Mpixel)
>
> Computer: Intel Celeron-Processor
> 700 MHz ;174 MFLOPS,
> read RAM 358MB/sec, write RAM 112 MB/sec
> 512 MB RAM ( 1 GB if the Source-Images are larger than
> 7Mpixel)
> ( 1 GB if the overlap between two Source-Images is
> larger then 30% )
> 127 GB IDE Disk ( NTFS, 4k Cluster)
> 300 GB IDE Disk ( NTFS, 4k Cluster)
> seq.read 52MB/sec, seq.write 34MB/sec
> OS: Wndows XP pro
>
>
> Software: PTStitcher (pano12.dll) by Helmut Dersch
> PTOptimizer (pano12.dll) by Helmut Dersch
> CPG2 (own software package)
>
> Diskspace used : approx. 120 GB
> diskspace = ( SourceImageSize * 4 * NoOfSourceImages ) + ( PanoSize * 3 )
> + TempSpace(~10GB)
> 2304 * 3072 * 4 * 2835 + 164256 * 63840 *
> 3
>
> Computertime:
> optimizer : 30 min. or much more (depends on the precision
> of positioning the camera)
> (PTOptimizer)
> converting images : 4 days 21 hours ( approx. 2min 30sec per
> SourceImage ) (PTStitcher)
> preparing stitching mask : 3h 30min
> arranging Outputfiles : 3h 20min
> blending ( multi-resolution-spline) : ???
>
> restrictions:
> The Source-images are in a regular arrangement.
> Indicate the Source-images by Column (c) and Row (r) P(r,c) then :
> yaw(r,c+1) = yaw(r,c) + deltaYaw
> yaw(r+1,c) = yaw(r,c)
> pitch(r+1,c) = pitch(r,c) + deltaPitch
> pitch(r,c+1) = pitch(r,c)
>
> deltaYaw is the rotating angle between two neighbour Source-images of the
> same row.
> deltaYaw is identical for all rows.
> deltaPitch is the pitch-angle between two rows .
>
>
> It is possible to use a finite number of computers to reduce the
> computertime
>
> Details 24GPixel pano: (25.Mai 2006)
> =====================================
> panosize: 322944 x 77440 pix
> 348^ x 84^ (degrees)
> 206 images per row
> 31 images per collumn
> 6386 Source-images
> 37595 Controlpoints
>
> Source imagesize: 2304 x 3072 pix ( 7 Mpixel)
>
> computertime: ( Computing-time below, when using only one computer for the
> steps
> "converting images" , "blending" and "preparing stitching
> mask".
> Only one computer is possible calculating :
> "optimizer" and "arranging Outputfiles" )
> optimizer : 4h (with the possibility of "morph to fit")
> (depends also on the positioning-precision
> of the camera)
> : 45min ( without the possibility of "morph to
> fit" )
> converting images : 14 days 1 hours ( approx. 3min 10sec per
> SourceImage )
> preparing stitching mask : 4h 10min
> arranging Outputfiles : 7h 20min
> blending ( multi-resolution-spline) : 4 days 5h
>
> No. of outputfiles: 160 , 429MB each ( 68.6 GByte)
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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