Height and gradient from shading
International Journal of Computer Vision
Surface shape and curvature scales
Image and Vision Computing
IEEE Transactions on Pattern Analysis and Machine Intelligence
Densification of Digital Terrain Elevations Using Shape from Shading with Single Satellite Imagery
ICCS '01 Proceedings of the International Conference on Computational Science-Part II
IJCAI'85 Proceedings of the 9th international joint conference on Artificial intelligence - Volume 2
Optimization of DTM Interpolation Using SFS with Single Satellite Imagery
The Journal of Supercomputing
Spatial enhancement of digital terrain model using shape from shading with single satellite imagery
ICCSA'03 Proceedings of the 2003 international conference on Computational science and its applications: PartI
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The technique of stereo measurements is mainly applied to extract Digital Terrain Model (DIM) height data from stereo images in photogrammetry and remote sensing. Tremendous amounts of local and global DTM data with different specifications are now available. However, there are numerous geoscience and engineering applications which need denser DTM grid data than available. Advanced space technology has provided much single (if not stereo) high-resolution satellite imageries almost worldwide. In cases where only monocular images are available, reconstruction of the object surfaces becomes more difficult. Shape from Shading (SFS) is one of the methods to derive the geometric information about the objects from the analysis of the monocular images. This paper discusses the use of SFS methods with single high resolution satellite imagery to density regular grids of heights. Three different methodologies are explained and implemented with both simulated and real data. Very encouraging results are obtained and briefly discussed.