This paper describes an algorithm for the reconstruction of 3D medical objects from ultrasound images. Reconstruction is performed by ®ltering and interpolating the available data using an optimal Bayesian criterion. A Rayleigh model is adopted to describe the image formation process. Ó 2000 Elsevier Science B.V. All rights reserved.

In 1990, one of us (Jackson) offered a hypothesis as an attempt to explain simultaneously all observations regarding the Shroud image (Ref 1). This hypothesis was ventured only after a systematic study of alternatives had failed to account for various image characteristics (Ref 2) and, though unconventional, this hypothesis makes a variety of testable predictions that are a-priori falsifiable b...

BACKGROUND Little evidence about the effects of antenatal iron supplementation on infant anaemia is available. The aim was to compare effects on six-month-old infants' Haemoglobin (Hb) concentration and anaemia of daily iron-folic acid (IFA), twice-weekly IFA with or without other micronutrients (MMN) and usual antenatal care in rural Vietnam. METHODS AND FINDINGS Secondary data analysis from...

OBJECTIVE The present literature review aimed to review the evidence for community-based distribution (CBD) of iron-folic acid (IFA) supplementation as a feasible approach to improve anaemia rates in low- and middle-income countries. DESIGN The literature review included peer-reviewed studies and grey literature from PubMed, Cochrane Library, LILAC and Scopus databases. SETTING Low- and mid...

Background Several epidemiological studies from low- and middle-income countries have reported a protective effect of maternal antenatal iron/folic acid (IFA) on childhood mortality. Objective The current study aimed to evaluate the effect of maternal antenatal IFA supplementation on childhood mortality in Pakistan. Design A propensity score-matched sample of 8,512 infants live-born within the ...

We present a Bayesian approach to color constancy which utilizes a nonGaussian probabilistic model of the image formation process. The parameters of this model are estimated directly from an uncalibrated image set and a small number of additional algorithmic parameters are chosen using cross validation. The algorithm is empirically shown to exhibit RMS error lower than other color constancy alg...

Image denoising by block matching and threedimensionaltransform filtering (BM3D) is a two steps state-ofthe-art algorithm that uses the redundancy of similar blocks innoisy image for removing noise. Similar blocks which can havesome overlap are found by a block matching method and groupedto make 3-D blocks for 3-D transform filtering. In this paper wepropose a new block grouping algorithm in th...

In many computer vision applications, segmenting and extraction of moving objects in video sequences is an essential task. Background subtraction, by which each input image is subtracted from the reference image, has often been used for this purpose. In this paper, we offer a novel background-subtraction technique for real-time dynamic background generation using color images that are taken fro...

Coherent image formation in step transform algorithm is realized by overlapped subapertures in both range and cross range direction. Subaperture formation principle is treated as multiplication of target backscatter signature with a set of overlapped and shifted complex, conjugate reference functions and subsequent spectral analysis. A polyphase filter bank interpretation of step transform is p...