Changes between Version 19 and Version 20 of GsocDSMGenerationToolForOSSIM

Timestamp:

Jul 26, 2014, 7:09:30 AM (10 years ago)

Author:

martidi

Comment:

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GsocDSMGenerationToolForOSSIM

@@ -346 +346 @@
 
 I'm still working on the theoretical problem for finding the correct image transformation for epipolar images generation.
+
+
+
+=== Weekly Report 10 (2014, July 25) ===
+
+'''Week 10:'''
+
+WHAT I GET DONE THIS WEEK:
+
+I have found and implemented a new image transformation model for epipolar generation: I have ralized that nor af affine transformation neither a pure rototranslation without scale were sufficient to find a good epipolarity. Therefore this week I wrote a rigorous model to estimate a transformation on the generated TPs, which is able to return images with null parallax error and whatever disparity on the sinlge TP.
+It still remains some little issue that seems to disappear once outliers in TPs are scratched out.
+
+I have modified the code in order to be able to use a 16bit .tif image (and not a compressed one) and not to loose the radiometric information of the raw images: as a matter of fact I noticed that by deteriorating the radiometric information the SGM alghoritm solution was compromised, and therefore tha Disparity Map was not properly generated.
+
+I have solved some minor warning in the ossim-opencv app building, related to “deprecated conversion” and “unappropriate comparison” in the code.
+
+I have created two classes:
+TP generator
+Disparity Map
+and implemented it into the app. To do it I have reorganized the app structure.
+
+I have implemented the Disparity Map class for disparity map generation.
+
+I have realized that one of the major problem in finding the correct image transformation for epipolar images generation, was due to the wrong median computation in Boost library accumulators, that I have used to implement the transformation computation: this fact caused me a lot of misunderstanding in results interpretation. I'm implementing a new median algorithm.
+
+[[BR]]
+WHAT I PLAN ON DOING NEXT WEEK:
+
+To solve the problem on which I am stuck.
+
+To test the new rigorous model for epipolar generation and upload the mathematical model.
+
+To begin thinking how to implement the conversion from the disparity map into a geocoded DSM.
+
+To test and control implementation efficacy – discuss results with mentors.
+
+[[BR]]
+SOMETHING ON WHICH I AM BLOCKED:
+
+---
+