Space research organizations, hospitals and military air surveillance activities, among others, produce a huge amount of data in the form of images hence a large storage space is required to record this information. In hospitals, data produced during medical examination is in the form of a sequence of images and are very much correlated; because these images have great importance, some kind of ...

Diabetic retinopathy is the leading cause of blindness in the adult population. In order to effectively identify patients suffering from the disease, mass-screening efforts are underway during which digital images of the retina are captured and then assessed by an ophthalmologist. In order to identify features such as exudates and microaneurysms, which are typically very small in extent, retina...

Compression is a process, in which the given size of data is compressed to a smaller size. Storing and sending images to its original form can present a problem in terms of storage space and transmission speed. Compression is efficient for storing and transmission purpose. Based on the reconstruction quality, compression can be lossy or lossless. Images used for biomedical research or astrophys...

In L1-distortion limited compression each single pixel value is only changed by maximal grey values. In this paper we present a theoretical framework for L1-distortion limited compression that covers several recently proposed methods. The basics of each of these methods are described. We give a comparison of coding results for the Lenna test image, a coronary angiogram, and a Landsat image. Res...

Colour in spaces plays an important role on inhabitants' mood. In interior design colour has been used to decorate spaces in order to lift and change mood in people. It has been already proved that certain colours relax people while other colours have an opposite e ect. However, not all the colours have been researched, and especially their e ects on teenagers' moods have not been researched. T...

In laboratory and applied learning experiments, researchers have extensively investigated the optimal distribution of two learning sessions (i.e., initial learning and one relearning session) for the learning of verbatim material. However, research has not yet provided a satisfying and conclusive answer to the optimal scheduling of three learning sessions (i.e., initial learning and two relearn...