Thank you Julien for responding. Following are steps, that I performed to 
generate DSM. It is now working fine. However, can you guide me as how can 
I generate Point Cloud out of Stereo.

*STEPS:*

otbcli_ExtractROI -in 
F:\Pleiades_Melb\MELB_TRI_P\IMG1\IMG1\IMG_PHR1A_P_201202250025329_SEN_PRG_FC_5110-001_R1C1.JP2
 
-out tri_melb1.tif uint16 -startx 25020 -starty 11863 -sizex 1024 -sizey 
1024

otbcli_ExtractROI -in  
F:\Pleiades_Melb\MELB_TRI_P\IMG3\IMG3\IMG_PHR1A_P_201202250026276_SEN_PRG_FC_5109-001_R1C1.JP2
 
-out tri_melb3.tif uint16 -startx 24926 -starty 12480 -sizex 1024 -sizey 
1024

otbcli_StereoRectificationGridGenerator -io.inleft tri_melb3.tif 
-io.inright tri_melb1.tif -io.outleft tri_melb3_grd.tif -io.outright 
tri_melb1_grd.tif -epi.elevation.default 20.45

otbcli_GridBasedImageResampling -io.in tri_melb3.tif -io.out 
tri_melb3_epi.tif -grid.in tri_melb3_grd.tif -out.sizex 1245 -out.sizey 1245

otbcli_GridBasedImageResampling -io.in tri_melb1.tif -io.out 
tri_melb1_epi.tif -grid.in tri_melb1_grd.tif -out.sizex 1245 -out.sizey 1245

otbcli_ConcatenateImages -il tri_melb3_epi.tif tri_melb1_epi.tif -out 
tri_melb_anaglyph.tif

otbcli_BlockMatching -io.inleft "tri_melb3.tif?&skipcarto=true" -io.inright 
"tri_melb1.tif?&skipcarto=true" -io.out tri_melb_disp_ncc2.tif -bm.minhd 
-40 -bm.maxhd 40 -bm.minvd 0 -bm.maxvd 0 -mask.nodata 0 -mask.variancet 100 
-io.outmetric 1 -bm.metric ncc

otbcli_BandMath -il tri_melb_disp_ncc.tif -out tri_melb_disp_ncc_bm.tif 
-exp "if(im1b3>0.9,im1b1,-1000)"

otbcli_DisparityMapToElevationMap -io.in tri_melb_disp_ncc.tif -io.left 
tri_melb3.tif -io.right tri_melb1.tif -io.lgrid tri_melb3_grd.tif -io.rgrid 
tri_melb1_grd.tif -hmin 0 -hmax 80 -elev average -step 1 -elev.default 
20.45 -io.out tri_melb_disp_dsm.tif

Regards,

Hafeez


On Monday, March 9, 2015 at 1:02:03 PM UTC+5, Julien Michel wrote:
>
> Le 06/03/2015 21:20, [email protected] <javascript:> a écrit : 
> > Though I am unable to process the desired result. I have also removed 
> > skipcarto=true but no desirable results. 
> Hi, 
>
> Can you be more specific about what is happening with the step by step 
> method ? Which step is failing, and with what kind of error ... 
>
> Regards, 
>
> Julien 
>
> -- 
> Julien MICHEL 
> CNES - DCT/SI/AP - BPI 1219 
> 18, avenue Edouard Belin 
> 31401 Toulouse Cedex 09 - France 
> Tel: +33 561 282 894 - Fax: +33 561 283 109 
>
>

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