;
; ; SOURCE: spider/docs/techs/recon1/Procs/align.spi ; ; PURPOSE: Multi-reference alignment of an image series. ; Experimental images are aligned with reference projections via ; shifts (translations) and rotations. ; ; USAGE: clean ; ./spider spi/dat @align 0 ; ; I/O Registers & files are set in: recon-settings.spi ; ; VARIABLE REGISTERS: ; [r2] Alignment radius of object ; [alignsh] Translation shift allowed is +-[alignsh] ; [incore-yn] Incore images used ; ; INPUT FILES: ([win_dir] denotes input directory, '***' denotes group, '%' denotes subset) ; [sel_group] [win_dir]/sel_group Group selection file (one) ; [sel_parts] [win_dir]/sel_part_*** Group particle selection files (one/group) ; [unaligned_images] [win_dir]/data_*** CTF corrected, unaligned image stacks (one/group) (one/group) ; [ref_projs] [rec_dir]/projs_00 Reference projections (one) ; ; OUTPUT FILES: ('[rec_dir] denotes output directory and '%' denotes subset) ; [next_group_align_s] [rec_dir]/align_01_***_s% Alignment parameter doc files (two/group) ; [aligned_images] [rec_dir]/dala_***@ Rotationally aligned particle stacks (two/group) ; ; PROCEDURES CALLED: ; recon-settings recon-settings.spi ; ; -------------------------------- END BATCH HEADER ---------------------------- MD TR OFF ; Loop info turned off MD VB OFF ; File info turned off MD SET MP ; Use only a few processors if using master node!! 10 ; Get reconstruction parameters & file names [steptype] = 0 ; Alignment step @recon-settings([steptype],[num-grps],[pixsiz],[ang-step],[r2],[alignsh],[prj-radius],[winsiz],[incore-yn],[bp-type],[qsub]) SYS echo -e " Alignment shift: {%I0%[alignsh]} Alignment radius: {%I0%[r2]}" SYS echo " Projection radius: {%I0%[prj-radius]}" ; echo [iter] = 0 [next-iter] = 1 GLO [r2] = [r2] GLO [alignsh] = [alignsh] GLO [incore-yn] = 1 ; Processes experimental images in series by groups of images. ; Find alignment parameters ('AP SHC') which best align experimental images with ; optimal projection image. ; Rotate ('RT SF') original particle images using these rotational alignment parameters. DO [grp] = 1,[num-grps] ; Loop over all groups ----------------- @align-loop [grp] ENDDO ; End of: Loop over all groups -------- SYS echo -en ' Alignment completed' ; date '+ TIME: %x %X' ; echo EN