نتایج جستجو برای: order optical flow constraints in each spatial neighborhood
تعداد نتایج: 17290414 فیلتر نتایج به سال:
An examination of urban rural links in each location requires the analysis of streams linking urban and rural settlements. Such links under the heading of "flow of space" are embodied in the framework of a network approach and include flows of capital, persons, goods, information, innovation, technology, and so on. These flows include a process that, in appropriate conditions They can bring tog...
We address unsupervised optical flow estimation for ego-centric motion. We argue that optical flow can be cast as a geometrical warping between two successive video frames and devise a deep architecture to estimate such transformation in two stages. First, a dense pixel-level flow is computed with a geometric prior imposing strong spatial constraints. Such prior is typical of driving scenes, wh...
in recent years, the number of research works devoted to applying the highly accurate numerical schemes, in particular compact finite difference schemes, to numerical simulation of complex flow fields with multi-scale structures, is increasing. the use of compact finite-difference schemes are the simple and powerful ways to reach the objectives of high accuracy and low computational cost. compa...
In this paper, we propose a new method for left ventricle (LV) motion estimation. The method is based on a pointconstrained optical flow algorithm for heart motion estimation. The constrained points are the corresponding point pairs in subsequent images. The motion estimation of these characteristic points can be obtained using techniques such as shapebased tracking of perceptually salient poin...
We propose a new method to analyse and characterise the hummingbird wing dynamics using statistical measures from an optical flow field. The method starts by computing a dense optical flow, using a multiscale spatial representation. First the pixels with larger velocities are retained as the support of the flow field, formed by the wings motion. Then, the global angular velocity is calculated a...
abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...
in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...
Urban areas today face a number of structural problems that have a lot of impact on the extent of damages. These changes are evident in most cases, in addition to the physical dimensions, in both social and economic dimensions, one of which is exhausting. The concept of urban resilience, considering the extent of these changes, seeks to predict the damage, as easily as to stabilize a system tha...
Semi-supervised clustering aims to improve clustering performance by considering user-provided side information in the form of pairwise constraints. We study the active learning problem of selecting must-link and cannot-link pairwise constraints for semi-supervised clustering. We consider active learning in an iterative framework; each iteration queries are selected based on the current cluster...
We introduce a new global constraint which combines together the lexicographic ordering constraint with some sum constraints. Lexicographic ordering constraints are frequently used to break symmetry, whilst sum constraints occur in many problems involving capacity or partitioning. Our results show that this global constraint is useful when there is a very large space to explore, such as when th...
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