We present an optical-flow-based algorithm to smoothly interpolate between two images. We reason about the depth ordering of objects, and show how bidirectional flow can be used to reduce holes in the estimated flow at the interpolated time and perform occlusion reasoning. We develop a purely pixel-wise algorithm and then add spatial regularization. We evaluate our algorithm on the interpolatio...

Image interpolation is a common problem in imaging applications. However, most interpolation algorithms in existence suffer visually the effects of blurred edges and jagged artifacts in the image to some extent. This paper presents an adaptive feature preserving bidirectional flow process, where an inverse diffusion is performed to sharpen edges along the normal directions to the isophote lines...

This paper describes the shape optimization of impeller blades for a anti-heeling bidirectional axial flow pump used in ships. In general, a bidirectional axial pump has an efficiency much lower than the classical unidirectional pump because of the symmetry of the blade type. In this paper, by focusing on a pump impeller, the shape of blades is redesigned to reach a higher efficiency in a bidir...

We present a new method for analyzing imagebased motion data with topological methods for flow fields. A video sensor captures motion of subjects and yields discrete samples of velocity vectors in the image domain. We show how to construct a smooth, continuous, globally defined bidirectional flow field which evaluates determined vectors at given samples. We then apply a topological analysis of ...

Contactless power transfer is an emerging technology. It is widely used in industrial and consumer electronic products. In this paper, a bidirectional contactless power transfer system for wireless vehicle charger is presented based on quantum modulation method. By applying this novel amplitude modulation method, switching losses and electromagnetic noise are greatly reduced and the whole syste...

There are some controversies regarding the usefulness of leaving additional pulmonary blood flow when establishing a bidirectional cavopulmonary shunt. From April 2002 to September 2008, 13 patients (mean age, 24 +/- 16 months) underwent a bidirectional cavopulmonary shunt procedure with fine adjustment of additional pulmonary blood flow, as an intermediate step before the Fontan operation. The...

BACKGROUND Additional antegrade pulsatile pulmonary blood flow obtained by leaving the main pulmonary artery patent during bidirectional cavopulmonary shunt has been shown to give additional benefits to the bidirectional Glenn cavopulmonary anastomosis. We retrospectively evaluated our 20-patient pulsatile Glenn series in order to find out whether these salutary effects were valid or not. MET...