This paper presents an approach for generating urban 3D colour models using a stereoscopic technique and the commercial highresolution satellite image data. The concept and result of the approach is presented. The paper demonstrates that it is possible to model an urban environment in natural colour 3D using the new commercial high-resolution satellite image data. The approach is fast and effec...

We present a design technique for colours that lower the energy consumption of the display device. Our approach relies on a screen space variant energy model. Guided by perceptual principles, we present three variations of our approach for finding low energy, distinguishable, iso-lightness colours. The first is based on a set of discrete user-named (categorical) colours, which are ordered accor...

This research is aimed at understanding how colour affects users’ decision-making processes in the context of warning banner messages. So far, little research has examined this complex psychological and cognitive process wherein the psychology of colour can play an important role in the relationship between the warning message and the user’s decision-making process. We closed the existing resea...

Based on a model of transverse chromatic aberration (TCA) of the eye and perceptual effects previously discussed by the same author, it was predicted that colour induced binocular depth perception (chromostereopsis) is possible from images containing red or blue along with achromatic information (grey and black); that the direction of the perceived depth from certain colours should differ for t...

Colour is an important and useful feature for object tracking and recognition in computer vision. However, it has the difficulty that the colour of the object changes if the illuminant colour changes. But under known illuminant colour it becomes a robust feature. There are more and more computer vision applications tracking humans, for example in interfaces for human computer interaction or aut...

In this paper scalar and vector data are visualised by suited colour scales based on perceptive and uniform colour models. Using opportune colour scales, colour information is created from the two-dimensional scalar data computed at different time steps. Direction and magnitude of computed vector data are represented employing circular colour look-up tables (LKT). In a scientific computing envi...

The authors suggest the convenience of using luminance contrast for a normalised threshold in the foreground segmentation process for video-based surveillance applications. An individual pixel is part of the foreground when its contrast is greater than a given threshold. This method presents two major advantages: it simplifies the background model and increases the processing speed. The backgro...

The effects of slice thickness, microwave pre-treatment, and drying temperature on drying orange kumara slices were investigated. The highest drying rate, with minimal loss of colour, occurred at 80°C. Slice thickness did not significantly influence colour but drying time increased with slice thickness. The drying curves fitted the Page thin-layer drying model. Two minutes microwave pre-treatme...

It is common to represent a mutualistic network as a bipartite graph in which nodes represent plant and pollinator species and lines represent interactions between plant pollinator pair. Many pollination ecologists recognize that a pollinator species that has a colour preference may be expected to have higher visit frequencies for plants of that colour. In contrast, no visits may be expected be...

Biologists have long been fascinated by the amazing diversity of animal colour patterns. Despite much interest, the underlying evolutionary and developmental mechanisms contributing to their rich variety remain largely unknown, especially the vivid and complex colour patterns seen in vertebrates. Here, we show that complex and camoufl aged animal markings can be formed by the ‘ blending ’ of si...