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Generating virtual images from oblique frames
(2013-04-01)
Image acquisition systems based on multi-head arrangement of digital camerasare attractive alternatives enabling a larger imaging area when compared to a single framecamera. The calibration of this kind of system can be ...
Interactive volume segmentation with differential image foresting transforms
(Ieee-inst Electrical Electronics Engineers IncPiscatawayEUA, 2004)
Medical image retrieval based on complexity analysis
(SPRINGER, 2010)
Texture is one of the most important visual attributes used in image analysis. It is used in many content-based image retrieval systems, where it allows the identification of a larger number of images from distinct origins. ...
An image quality index based on coefficients of spatial association with an application to image fusion
(Elsevier, 2018-03)
In the last decade, image quality indices have received considerable attention to quantify the dissimilarity between two images. The codispersion coefficient, commonly used in spatial statistics to address the association ...
A support system for content-based medical image retrieval in object oriented databases
(1997-12-01)
This work describes both the concepts used in an Object Manager for storage of medical images as one more data type associated to objects, and a support system developed to offer this kind of tool to medical application ...
A photogrammetric method for single image orientation and measurement
(2005-06-01)
The aim of this paper is to present a photogrammetric method for determining the dimensions of flat surfaces, such as billboards, based on a single digital image. A mathematical model was adapted to generate linear equations ...
IFTrace: Video segmentation of deformable objects using the Image Foresting Transform
(Academic Press Inc. Elsevier B.V., 2012-02-01)
We introduce IFTrace, a method for video segmentation of deformable objects. The algorithm makes minimal assumptions about the nature of the tracked object: basically, that it consists of a few connected regions, and has ...
A New Family of Distance Functions for Perceptual Similarity Retrieval of Medical Images
(SPRINGER, 2009)
A long-standing challenge of content-based image retrieval (CBIR) systems is the definition of a suitable distance function to measure the similarity between images in an application context which complies with the human ...
Estimation of C2n based on scintillation of fixed targets imaged through atmospheric turbulence
(Optical Society Of America, 2015-12)
We define a pixel-based scintillation index for dynamic incoherent imaging of fixed high-contrast targets through atmospheric turbulence. We propose a simple setup to study this parameter varying the C2n constant in ...
Efficient parallelization on GPU of an image smoothing method based on a variational model
(2016-07-21)
Medical imaging is fundamental for improvements in diagnostic accuracy. However, noise frequently corrupts the images acquired, and this can lead to erroneous diagnoses. Fortunately, image preprocessing algorithms can ...