This paper presents a novel solution to the High Dynamic Range (HDR) image compression problem using level set framework. Using level set framework, this method separates the HDR image into detail and profile. Then it uses a global tone mapping function to compress the profile. Finally it produces a low dynamic range version of the image for display by adding the details to the compressed profi...

Today, neuroscientists are interested in discovering human brain functions through brain networks. In this regard, the evaluation of dynamic changes in functional connectivity of the brain regions by using functional magnetic resonance imaging data has attracted their attention. In this paper, we focus on two model-based approaches, called the exponential weighted moving average model and the d...

While tone mapping operation of high dynamic range (HDR) images for realistic display is commonly researched, scientific visualization for analysing scene luminance within HDR image has much less attention from researches. This paper has presented and implemented an approach for the reproduction and visualization of the colour information in HDR images. We attempt several simple colour visualiz...

The dynamic range of a scene is the contrast ratio between its brightest and darkest parts Low dynamic range images usually represent pixels with pixel values ranging as integers between and High dynamic range pixels are capable of representing light quantities of one to a million and beyond and can express more exact than the usual dynamic range But it was di cult to model an object with high ...

In this paper, an efficient residue to binary converter design for the new high dynamic range moduli set {2-1,2+1,2,2+1,2-1} is presented. The reverse conversion in the four-moduli set {2, 2+1, 2+1, 2-1} has been proposed in literature. Hence, the converters are based on the new moduli set {2-1, (2-1)(2+1)(2+1)2} and propose its residue to binary converter using New Chinese Remainder Theorem 2 ...

Tone Mapping Operators (TMOs) compress High Dynamic Range (HDR) contents to address Low Dynamic Range (LDR) displays. While many solutions have been designed over the last decade, only few of them can cope with video sequences. Indeed, these TMOs tone map each frame of a video sequence separately, which results in temporal incoherency. Two main types of temporal incoherency are usually consider...

The high dynamic range of illumination may cause serious distortions and problems in the view and further processing of digital images. In this paper a new fuzzy based tone reproduction pre-processing algorithm is introduced which may help in developing the hardly or non viewable features and content of the images making easier the further processing.

Experiments at storage ring light sources as well as at next-generation light sources increasingly require detectors capable of high dynamic range operation, combining low-noise detection of single photons with large pixel well depth. XFEL sources in particular provide pulse intensities sufficiently high that a purely photon-counting approach is impractical. The High Dynamic Range Pixel Array D...

The presentation discusses the requirements on the characteristics of antenna and RFsubsystem of a FMCW Imaging Radar with respect to the dynamic range and presents the design of an advanced demonstrator. The discussion is based on experience with the HiVision-Radar system /1/ which observes the ground from an elevated position (e.g. airborne platform, see also /2/) and employs a frequency scan...

Here, we report results from psychophysical experiments aimed to assess the performance of the Samsung OLED display as contrasted to that of a typical LCD display in the context of high-dynamic range (HDR) image rendering. Our test scenes depict ”blobbie” objects embedded in an environment that contains regions with strong shadows. In the assessments described here we examined 8 variations of t...