Photoconsortium is an association of photographic archives that contributed over 450.000 images of early photography to Europeana. In this contribution we discuss lessons learned, in particular on digitization and copy‐ right issues and describe the activities involved in managing state-of-the-art digi‐ tized photographic archives. We discuss follow-on project activities such as Europeana Space...

Photography is a 2-dimensional medium which represents 3-dimensional space, as a central projection on a plane. As it is possible to represent 3D space by a photograph, it is also possible, using mathematical methods, to obtain data about 3-dimensional structures from the data registered on photographs. We used two methods to obtain spatial data from photographs: restitution of perspective imag...

The compositing of two or more people into a single image is a common form of manipulation. We describe how such composites can be detected by estimating a camera’s intrinsic parameters from the image of a person’s eyes. Differences in these parameters across the image are used as evidence of tampering.

Although photographic papers have been manufactured for at least as long as film has been made, there is little in the literature on their image microstructure properties. One of the earliest comprehensive experimental investigations of the “sharpness” (really the MTF) of photographic papers is that reported by Ruth Stapleton.1 One of the general conclusions of her work was that the Modulation ...

This field study assessed whether areas in an alleged haunt and a control site, and active and inactive areas within the haunt site, differed with respect to the presence of contextual variables that might contribute to haunt experiences and exhibited differential incidences of photographic anomalies. Contextual (aesthetic, physical, and structural) variables were measured, and randomized photo...

The aim of this study was to assess agreement in the diagnosis of dental fluorosis performed by a standardized digital photographic method and a clinical examination (gold standard). 49 children (aged 7-9 years) were clinically evaluated by a trained examiner for the assessment of dental fluorosis. Central incisors were evaluated for the presence or absence of dental fluorosis and were photogra...

Construction materials used in building structures, such as masonry, wood, and reinforced concrete, deteriorate over time because of many factors including poor design, defective materials or manufacture, and poor workmanship. This article is concerned with estimates of masonry deterioration and the effects of covariates on the damage to bricks on the walls of Ž ve multiple-story buildings of a...

BACKGROUND Due to the absence of accurate tools and appropriate photographic material there is a paucity of objective studies on facial aging in the modern literature. OBJECTIVES To measure changes in two elements of the face: brow ptosis and cheek mass migration, using an objective tool that we developed which we then used to evaluate facial aging in two subjects studying serial professional...

Automatic linguistic indexing of pictures is an important but highly challenging problem for researchers in computer vision and content-based image retrieval. In this paper, we introduce a statistical modeling approach to this problem. Categorized images are used to train a dictionary of hundreds of statistical models each representing a concept. Images of any given concept are regarded as inst...