Image scaling is the process of resizing a digital image, wherein an image is converted from one resolution/dimension to another resolution/dimension without losing the visual content. It has many terminologies in literature such as Image Interpolation, image re-sampling, digital zooming, image magnification or enhancement, etc [1] [2]. Image interpolation algorithms can be grouped in two categ...

This paper presents a locally-adaptive perceptual quanti-zation scheme for visual data compression. The strategy is to exploit human visual masking properties by deriving masking thresholds in a locally-adaptive fashion based on a sub-band decomposition. The derived masking thresholds are used in controlling the quantization stage by adapting the quantizer reconstruction levels to the local amo...

Laz spatial adverbs are notional lexical items making up rather numerous and semantically diverse groups. They play a significant role in linguistic representation of structures determining which circumstances with what features an action, conveyed by verb, proceeds. satellites outside verb stem; sentences, they occur as adverbial modifiers convey space-related information: direction movement p...

This paper proposes an effective anomaly detection algorithm for a forward-looking ground-penetrating radar (FLGPR). One challenge for threat detection using FLGPR is its high dynamic range in response to different kinds of targets and clutter objects. The application of a fixed threshold for detection often yields a large number of false alarms. We propose a locally-adaptive detection method t...

BACKGROUND In total, 3.1 million young children die every year from under-nutrition. Greater understanding of associations between socio-economic status (SES) and the biological factors that shape under-nutrition are required to target interventions. AIM To establish whether SES inequalities in under-nutrition, proxied by infant size at 12 months, operate through maternal and early infant siz...

PURPOSE To investigate ocular dimensions in African Americans with the long anterior zonule (LAZ) trait. METHODS A total of 61 African American LAZ subjects and 61 age-matched, race-matched, and sex-matched controls were compared with respect to central corneal thickness, central corneal curvature, axial length (AL), and subjective refraction. RESULTS LAZ right eyes had a mean SR=+1.75±1.82...

Thirion's Demons is a popular algorithm for nonrigid image registration because of its linear computational complexity and ease of implementation. It approximately solves the diffusion registration problem by successively estimating force vectors that drive the deformation toward alignment and smoothing the force vectors by Gaussian convolution. In this article, we show how the Demons algorithm...

In this paper we address the problem of producing an enlarged picture from a given digital image (zooming). We propose a method that takes into account information about discontinuities or sharp luminance variations while zooming the input picture. This is realized by a nonlinear iterative procedure of the zoomed image and could hence be implemented with limited computational resources. The alg...