The paper brings forward ways to solve the problem of estimating trunk diameter using data airborne laser scanning (LIDAR) relevant for forest inventory. At first stage studying, it was defined regularities tree height and relations various species, as well coefficients coupling equations significance “height-diameter” based on field data. second stage, calculated crown parameters (diameter vol...

Abstract The umbu tree is an endemic species and found in the Brazilian semi-arid. Umbu highly appreciated for its socioeconomic importance significant diversity of quality attributes. This study aims to explore color-related variations between matrices, evaluate correlation main biometric attributes quality. With this, 14 matrices were explored at commercial ripening stage submitted colorimetr...

BACKGROUND AND PURPOSE Posterior fossa malformations are a common finding in prenatal diagnosis. The objectives of this study are to re-evaluate existing normal MR imaging biometric data of the fetal posterior fossa, suggest and evaluate new parameters, and demonstrate the possible clinical applications of these data. MATERIALS AND METHODS This was a retrospective review of 215 fetal MR imagi...

In this paper we will look at the detection and segmentation of the iris and its influence on the overall performance of the iris-biometric tool chain. We will examine whether the segmentation accuracy, based on conformance with a ground truth, can serve as a predictor for the overall performance of the iris-biometric tool chain. That is: If the segmentation accuracy is improved will this alway...

This paper presents a 3-level RDWT biometric watermarking algorithm to embed the voice biometric MFC coefficients in a color face image of the same individual for increased robustness, security and accuracy. Phase congruency model is used to compute the embedding locations which preserves the facial features from being watermarked and ensures that the face recognition accuracy is not compromise...

Privacy Protecting Biometric Authentication Systems As biometrics gains popularity and proliferates into the daily life, there is an increased concern over the loss of privacy and potential misuse of biometric data held in central repositories. The major concerns are about i) the use of biometrics to track people, ii) non-revocability of biometrics (eg. if a fingerprint is compromised it can no...

The present study investigated basic statistics for biometric traits as well as non-genetic factors that may affect these traits in the Moghani breed of sheep. The data-set was computed by using biometric records of the Moghani sheep breeding and raising station over a period of 15 years (1996 to 2012). Year of birth, month of birth, birth type and lamb's sex and dam permanent environment were ...

In this work, we present a novel trained method for combining biometric matchers at the score level. The new method is based on a combination of machine learning classifiers trained using the match scores from different biometric approaches as features. The parameters of a finite Gaussian mixture model are used for modelling the genuine and impostor score densities during the fusion step. Sever...