You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Copy file name to clipboardExpand all lines: source/map-accuracy.rst
+13-33Lines changed: 13 additions & 33 deletions
Display the source diff
Display the rich diff
Original file line number
Diff line number
Diff line change
@@ -270,10 +270,9 @@ When previously mapped sites need revisited, OpenDroneMap can align multiple ver
270
270
Animated gif comparing two separately processed, but aligned digital surface models.
271
271
272
272
Plugin Time-SIFT
273
-
================
273
+
----------------
274
274
275
-
This script does Time-SIFT processing with ODM. Time-SIFT is a method
276
-
for multi-temporal analysis without the need to co-registrate the data.
275
+
The script at contrib/time-sift in the ODM repository does Time-SIFT processing with ODM. Time-SIFT is a method for multi-temporal analysis without the need to co-registrate the data.
277
276
278
277
D. Feurer, F. Vinatier, Joining multi-epoch archival aerial images in
279
278
a single SfM block allows 3-D change detection with almost
@@ -283,7 +282,7 @@ for multi-temporal analysis without the need to co-registrate the data.
It should make the Time-SIFT processing on the downloaded example data,
315
-
stopping after the filtered dense clouds step.
312
+
It should make the Time-SIFT processing on the downloaded example data, stopping after the filtered dense clouds step.
316
313
317
-
In the destination dir, you should obtain new directories, ``0_before``
318
-
and ``1_after`` at the same level as the ``time-sift-block`` directory.
319
-
These new directories contain all the results natively co-registered.
314
+
In the destination dir, you should obtain new directories, ``0_before`` and ``1_after`` at the same level as the ``time-sift-block`` directory. These new directories contain all the results natively co-registered.
320
315
321
-
You can then use `CloudCompare <https://cloudcompare.org/>`__ to compute
322
-
distance between the
323
-
``datasets/0_before/odm_filterpoints/point_cloud.ply`` and the
324
-
``datasets/1_after/odm_filterpoints/point_cloud.ply`` and obtain this
325
-
image showing the difference between the two 3D surfaces. Here, two soil
326
-
samples were excavated as can be seen on the image below. |image1|
316
+
You can then use `CloudCompare <https://cloudcompare.org/>`__ to compute distance between the ``datasets/0_before/odm_filterpoints/point_cloud.ply`` and the ``datasets/1_after/odm_filterpoints point_cloud.ply`` and obtain this image showing the difference between the two 3D surfaces. Here, two soil samples were excavated as can be seen on the image below. |image1|
327
317
328
318
Your own data
329
319
~~~~~~~~~~~~~
330
320
331
-
In your dataset directory (usually ``datasets``, but you can have chosen
332
-
another name) you have to prepare a Time-SIFT project directory (default
333
-
name : ``time-sift-block``, *can be tuned via a parameter*) that
334
-
contains : \* ``images/`` : a subdirectory with all images of all
335
-
epochs. This directory name is fixed as it is the one expected by ODM \*
336
-
``images_epochs.txt`` : a file that has the same format as the file used
337
-
for the split and merge ODM function. This file name *can be tuned via a
338
-
parameter*.
321
+
In your dataset directory (usually ``datasets``, but you can have chosen another name) you have to prepare a Time-SIFT project directory (default name : ``time-sift-block``, *can be tuned via a parameter*) that contains : \* ``images/`` : a subdirectory with all images of all epochs. This directory name is fixed as it is the one expected by ODM \*
322
+
``images_epochs.txt`` : a file that has the same format as the file used for the split and merge ODM function. This file name *can be tuned via a parameter*.
339
323
340
-
The ``images_epochs.txt`` file has two columns, the first column
341
-
contains image names and the second contains the epoch name as follows
324
+
The ``images_epochs.txt`` file has two columns, the first column contains image names and the second contains the epoch name as follows
342
325
343
326
::
344
327
@@ -358,10 +341,7 @@ Your directory, before running the script, should look like this :
358
341
├── images/
359
342
└── images_epochs.txt
360
343
361
-
At the end of the script you obtain a directory by epoch (at the same
362
-
level as the Time-SIFT project directory). Each directory is processed
363
-
with images of each epoch and all results are natively co-registered due
364
-
to the initial sfm step done with all images.
344
+
At the end of the script you obtain a directory by epoch (at the same level as the Time-SIFT project directory). Each directory is processed with images of each epoch and all results are natively co-registered due to the initial sfm step done with all images.
0 commit comments