Onin-vivoskin topography metrology and replication techniques

Abstract

On in-vivo skin topography metrology and replication techniques. Abstract. Human skin metrology is an area of growing interest for many disciplines both in research and for commercial purposes. Changes in the skin topography are an early stage diagnosis tool not only for diseases but also give indication of the response to medical and cosmetic treatment. This paper focuses on the evaluation of in vivo and in vitro methodologies for accurate measurements of skin and outlines the quantitative characterisation of the skin topography. The study shows the applicability of in-vivo skin topography characterisation and also the advantages and limitations compared to conventional replication techniques. Finally, aspects of stripe projection methodology and 3D characterisation are discussed as a background to the proposed methodology in this paper. Journal of Physics

Skin Surface Topography and Texture Analysis of Sun-Exposed Body Sites in View of Sunscreen Application

“…For the noninvasive assessment of skin roughness, indirect replica-based techniques and direct in vivo techniques are in use [24,25]. Although fast and convenient direct methods that are appropriate for the clinical setting have been developed based on interference fringe profilometry and the use of CCD cameras [26,27,28], the preparation of replicas remains the most frequently used technique with a vast body of data available [3,4,5,8,10,12,13,17,18,29,30,31].…”

Objective measurements of skin surface roughness after microdermabrasion treatment

“…Application area on the skin must be free of cosmetics and in a natural position. Skin should not be too tight due to potential facial expression . The periorbital area was chosen for the scanning, as it is characterized by the appearance of many wrinkles.…”

Measuring Skin Topographic Structures through Capacitance Image Analysis

“…Skin topography analyses carried out by employing replication techniques have been recently discussed in [5]. Also, the authors prove the reliability of an optical device to extract topographic features from images of the skin by comparing results obtained through profilometric analysis of a silicone replica of the same body site area.…”

“…Nowadays, to achieve skin topography measurements, most of the methods are still based on profilometric analyses [5,3]. These approaches give accurate measures of the skin surface, but they are indirect since a polymer replica of the skin is needed.…”