Stage 1 - Initial Load

The first stage of building the shape model was to bring in the first set of images and generate landmarks from them. The following figure illustrates the general process of this stage.

First, the images are imported into the SPC system and converted into the SPC internal format. Then the alignment of the images is improved. Next, a set of initial landmarks is generated with a GSD of 120cm at a spacing of 20 degrees. Batch processing then generates the topography and improves the landmark registration.

The following table details the steps, specific procedures and the programs used to accomplish this stage:

Step

Procedure Name

Executable

Step 1-1

Import

process_img

Step 1-2

Sumfiles

make_sumfiles

Step 1-3

Register

register

Step 1-4

Create Lanmarks

lithos or tyler

Step 1-5

Init landmarks

lithos

Step 1-6

Align landmarks

lithos

Step 1-7

Build Topo

lithos

Step 1-8

Batch Topo

make_scriptP, lithosP

Step 1-9

Evaluate

residuals

Step 1-10

Build Shape

dumber, densify