@inproceedings{rodriguez11, author = {M. {Cunill Rodr{\'i}guez} and J. A. {Delgado Atencio} and S. {V{\'a}zquez y Montiel} and B. {Morales Cruzado} and S. A. Prahl and J. {Castro Ramos}}, title = {Theoretical-Experimental Analysis of a Video Reflectometry Setup}, booktitle = {International Commission for Optics 22 General Congress}, year = {2011, poster}, abstract = {Video Reflectometry is a relatively simple technique to determine of the optical properties of biological tissues. The video image captures the spatially resolved diffuse reflectance, $R_d(r)$, generated by a narrow light beam normally incident on the surface of the tissue. The video system uses a CCD camera in combination with optical density filters that allows recording of the reflectance signal over a large dynamic range. In this paper, we describe the theoretical framework for evaluating experimental measurements using Monte Carlo simulations. The influence of various factors on the derived optical properties is presented. The specific factors explored are (1) mis-focusing of the camera on the surface, (2) tilting of incident beam, (3) finite beam diameter. We present experimental results of the performance of the system on using Teflon disks as optical standards. Finally, we report on the effect of the reading direction of CCD pixels on the profile of diffuse reflection curves.}, }