Download zip file with example files: :Tiepoint Transform

There is a bug in the Visual Studio compiler (still) and the program may not run - you may need the Visual Studio 2008 Redistributable Package (also included in the zip)

There are two versions of the transform: the batch version, where images are processed

The transform is run from the command line with only one parameter - the name of the configuration file. If no parameter/configuration file specified, the executable will assume the configuration file is named config.ini. Use the command prompt to navigate to the directory where the executable is located and type in the name of the executable followed by the configuration file name, for example:

Transform_v0.93_x64_non-export.exe config.ini

The program will read 3 paths from the configuration file:

1. Image map file, containing the names of images and IDs associated with them. See a sample image map file
2. Seed point file, containing the mapped pixel values of the laser beams. See a sample seed point file
3. Image directory, where the source images defined in the image map file are located.

[FILES]
; List of images with image IDs: img1.jpg	1
; Default value assumed by program: "imagelist.txt"
IMAGE_LIST = imagelist.txt
 
; List of seed points in x y format: 100	200
SEED_LIST = winrock_5_beam.txt
 
; Directory where the images are located - this could be either a direct path to the directory, such as "C:/Documents And Settings/images" 
; or a folder that is in the same location as the  tiepoint executable, such as "images". Note the absence of backslash (/) at the end
IMAGES_DIR = images
 
; Solution file
SOLUTION_FILE = AFFINE_SOLUTION.txt
 
; ERDAS solution file
ERDAS_SOLUTION = ERDAS_SOLUTION.txt
 
 
 
[SETTINGS]
 
; Number of CPU cores available for multithreaded support
; Word of warning - make sure you have enough RAM to support multiple images being open
CPU_CORES = 2
 
 
; Size of batches in which images are processed as to not use up all the memory - do not change this unless you're experiencing problems
BATCH_SIZE = 10
 
 
; If you only need to recompute the affine and have the matches stored on disk
; 	(from a previous run of the program), then set RECOMPUTE_MATCHES to 0
RECOMPUTE_MATCHES = 1
 
; If you only need to recompute the affine & the matches and have the features stored on disk
; 	(from a previous run of the program), then set RECOMPUTE_FEATURES to 0
RECOMPUTE_FEATURES = 1
 
 
; Number of neighbors around each seed to be used in the computation of the affine
; 	transformation - less points will result in a less accurate answer, more points
; 	will result in a better answer - the trade off is that as the number of points 
;	increases, the chance that the points do not lie on the same plane also increases
;	If points don't lie on the same plane, the answer will be less accurate.
; 	Value of 20 works well. 6 is minimum (program will make sure)
NUM_NEIGHBORS = 20
 
 
; Number of iterations for the least squares algorithm for each image. Typically,
;	you won't have to changes this. Larger number may provide more accuracy but may take
;	a long time
NUM_LM_ITERATIONS = 150
 
; Tolerance for the least squares approximation of the residuals. Algorithm quits whenever 
;	this or NUM_LM_ITERATIONS is achieved
RESIDUAL_TOLERANCE = 0.0001

Kingston 447.jpg	001
Kingston 448.jpg	002
Kingston 449.jpg	003
Kingston 450.jpg	004
Kingston 451.jpg	005

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