Research on eliminating organic pollutants in water by using heterogeneous photocatalysts such as nano-TiO2 abound. However, the question is whether metabolites, resulting from optical dispersion of environmental pollutants, are still toxic to aquatic organisms. Therefore, this study was designed to evaluate the effect of a co-exposure to paraquat and TiO2-NPs on blood bio...

The work starts with a short introduction concerning the history of road lighting, outlining the trends and changes that have taken place in road lighting research during the past century. The introduction is followed by a review of trends, directions, and problems in current road lighting research and practice. The following part of the work introduces an advanced approach to road lighting mea...

This paper describes a new fiducial detection method for use under varying lighting conditions without manual control of any parameters. We developed the algorithm especially for vision-based Augmented Reality (AR) systems. The major problem in Augmented Reality is the registration between the virtual world and the real world. The user’s pose in both worlds should be exactly the same. Vision-ba...

Lighting estimation from face images is an important task and has applications in many areas such as image editing, intrinsic image decomposition, and image forgery detection. We propose to train a deep Convolutional Neural Network (CNN) to regress lighting parameters from a single face image. Lacking massive ground truth lighting labels for face images in the wild, we use an existing method to...

Camera based tasks are commonly perfcrmed during orbital operations, and orbital lighting conditions, such as high contrast shadowing and glare, are a factor in performance. Computer based training using virtual environments is a common tool used to make and keep crew members proficient. If computer based training included some of these harsh lighting conditions, would the crew increase their p...

Abstract The aim of the paper is to present partial outputs from continual measurement light conditions in office environment during common work activity. volunteers worn head mounted dosimetric devices – Lightwatchers, collect individual and realistic data contrary fixed photometric devices. confirm that natural activity workers has a great influence on recorded illuminance levels. It shows an...

In [1] we introduced a linear statistical model of joint color changes in images due to variation in lighting and certain non-geometric camera parameters. We did this by measuring the mappings of colors in one image of a scene to colors in another image of the same scene under different lighting conditions. Here we increase the flexibility of this color flow model by allowing flow coefficients ...

Inverse lighting is a technique for recovering the lighting environment of a scene from a single image of an object. Conventionally, inverse lighting assumes that a pixel value is proportional to radiance value, i.e. the response function of a camera is linear. Unfortunately, however, consumer cameras usually have unknown and nonlinear response functions, and therefore conventional inverse ligh...