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[Bug 1005078] [NEW] Singular matrix in vig_optimize

 

Public bug reported:

I noticed a project was causing Hugin to hang when doing a photometric
optimization.   I tried running vig_optimize on the command line to see
what was happening and got:

$ ./vig_optimize -v -o /tmp/xx.pto  '/Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4452-_MG_4556.pto'
loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4452.jpg
downscaling: 1000x667  500x334  250x167  
loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4454.jpg
downscaling: 1000x667  500x334  250x167  
...
loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4550.jpg
downscaling: 1000x667  500x334  250x167  
loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4553.jpg
downscaling: 1000x667  500x334  250x167  
loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4556.jpg
downscaling: 1000x667  500x334  250x167  

Selected 71 points                                                              
Vignetting Optimization, , Iteration: 30, error: 5.188565: /                    Singular matrix A in dlevmar_LUinverse_noLapack()!
: | 


This is from hugin-mac-2011.5.0.5783

Brent

** Affects: hugin
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1005078

Title:
  Singular matrix in vig_optimize

Status in Hugin - Panorama Tools GUI:
  New

Bug description:
  I noticed a project was causing Hugin to hang when doing a photometric
  optimization.   I tried running vig_optimize on the command line to
  see what was happening and got:

  $ ./vig_optimize -v -o /tmp/xx.pto  '/Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4452-_MG_4556.pto'
  loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4452.jpg
  downscaling: 1000x667  500x334  250x167  
  loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4454.jpg
  downscaling: 1000x667  500x334  250x167  
  ...
  loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4550.jpg
  downscaling: 1000x667  500x334  250x167  
  loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4553.jpg
  downscaling: 1000x667  500x334  250x167  
  loading: /Users/bst/Desktop/TMP Export/4452-HDRPano LR/_MG_4556.jpg
  downscaling: 1000x667  500x334  250x167  

  Selected 71 points                                                              
  Vignetting Optimization, , Iteration: 30, error: 5.188565: /                    Singular matrix A in dlevmar_LUinverse_noLapack()!
  : | 

  
  This is from hugin-mac-2011.5.0.5783

  Brent

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