In this paper, an approach of principal component analysis (PCA) with local pixel grouping (LPG) is used to de-noising the noisy historical document image. This technique ensures the preservation of historic document image local structure. This is due to block matching based LPG which carries out classification to allow only the sample blocks with similar contents used in the calculation for PC...

This paper describes and evaluates the background, methodology and successful application of a historic landscape characterisation project undertaken between 1999 and 2000 in Lancashire (NW England). It begins with a description of the need and context for the project, from the perspective of English Heritage as a part of a national programme, from the viewpoint of Lancashire County Council who...

Cultural heritage preservation makes necessary to produce an initial technical documentation to be able to establish the plans which allow to develop suitable approaches for protecting. Recent developments in the scientific methods of documentation influenced the conservation approaches to historic areas. In the past, conservation efforts focused on absolute preservation which meant preventing ...

Abstract We explore femtosecond laser cleaning of materials used in the construction historic monuments, such as stone and steel covered typical contaminants caused by harsh environments that may be found urban areas. address these from a conservation perspective, taking examples preservation iconic structures granite Sydney Harbour Bridge, Hawkesbury sandstone, popular building material variet...