[PATCH] TSX COSAR driver and 'pixel validity mask'
|Reported by:||pmar||Owned by:||chaitanya|
|Severity:||normal||Keywords:||cosar driver pixel_validity_mask|
The current COSAR reader/driver implementation does not correctly resolve for the 'pixel validity mask': it shifts the whole range line, including the 'no valid' pixels, rather then masking them out.
The listed patch fixes the problem.
The patch was tested on a stack of Stripmap data, and by visual comparison of the GDAL output with GeoTiff Quicklooks (that are provided with images). Moreover, interferometric processing done on the COSAR data pre-processed by GDAL and patched COSAR driver, resulted in an expected values (no missing lines/pixels) and coherent interferometric signal.
- patch: cosar_dataset_validity_mask.patch
- screenshot 1: problem.png (run with trunk cosar_dataset.cpp)
- screenshot 2: patched.png (run with patched cosar_dataset.cpp)
- screenshot 3: interferometric_check.png
TX-GS-DD-3307 : TerraSAR-X Level 1b product format specification
Change History (16)
comment:2 by , 14 years ago
|Component:||default → GDAL_Raster|
|Summary:||[PATCH] TerraSAR-X COSAR Format Driver, does not correctly account for the 'pixel validity mask' → [PATCH] TSX COSAR driver and 'pixel validity mask'|