Closure to "Discussion of `Verification of an Internal Close-Range Photogrammetry Approach for Volume Determination during Triaxial Testing' by S. E. Salazar, L. D. Miramontes, A. Barnes, M. L. Bernhardt-Barry, and R. A. Coffman"

A detailed discussion of the technical manuscript entitled "Verification of an Internal Close-Range Photogrammetry Approach for Volume Determination during Triaxial Testing" was presented by Li and Li. The closure herein addresses the issues raised by the discussers and provides further clarification of the information provided in the original publication.