Close-Range

Photogrammetry,

Accident Analysis,

and

Site-Measurement Survey

Consulting

A photograph is a two-dimensional view of a three-dimensional (3D) scene. This 3D scene
can be dimensionally reconstructed to an accurate scale using the methods and techniques of
close-range photogrammetry. These services are efficient and cost effective; it is possible to
accurately position and reconstruct the displayed object(s).

Close-range photogrammetry (CRP) is ideal for adjusters, accident reconstructionists,
architects,engineers, litigation of all types, and many other applications. CRP may be the only

method available to determine the dimensions required of an event site. Time, weather, and man
can change an event site such that previously identifiable marks and object positions are no
longer as they were immediately after the event.

James R. Williamson, Ph.D., has over 35 years experience in photogrammetry, and as a
Graduate Civil Engineer has been a member of the American Society for Photogrammetry and Remote Sensing (ASPRS) since 1966. He is an ASPRS Certified Photogrammetrist. Curriculum Vitae and rates provided upon request. Send email to, jamesw@123photogrammetry.com, or call (281) 412-0154.