CATEGORIZATION AND ANALYSIS OF SURFACE DETERIORATIONS IN STRUCTURES USING REMOTE SENSING TECHNIQUES

Visual inspection by human inspectors is one among the most powerful and versatile non destructive tests and it is the first step in the e valuation of any structure. Effectiveness of visual inspection depends on the knowledge and the experience of the investigator. This approach presents some problems. The presence of damage is not quantitatively standardized and depends on the inspector’s qualitative criteria. Productivity is low because the inspectors typically use paper sheets in the field that are digitized afterwards in the office. Sometimes, the inspectors must work at heights and sometimes, the structures are not easily accessible, so it is not possible to perform the correct inspection of the structure.