15 research outputs found
Effect of nitric oxide on the pulmonary vascular pressure-flow relationship in a canine model of thrombolytic pulmonary hypertension
Recent advances in cardiovascular medicine
Consensus Panelinfo:eu-repo/semantics/publishe
Effects of Noradrenaline and Isoproterenol on Cardiopulmonary Function in a Canine Model of Acute Pulmonary Hypertension
Crisp Boundary Detection Using Pointwise Mutual Information
Detecting boundaries between semantically meaningful objects in visual scenes is an important component of many vision algorithms. In this paper, we propose a novel method for detecting such boundaries based on a simple underlying principle: pixels belonging to the same object exhibit higher statistical dependencies than pixels belonging to different objects. We show how to derive an affinity measure based on this principle using pointwise mutual information, and we show that this measure is indeed a good predictor of whether or not two pixels reside on the same object. Using this affinity with spectral clustering, we can find object boundaries in the image – achieving state-of-the-art results on the BSDS500 dataset. Our method produces pixel-level accurate boundaries while requiring minimal feature engineering.National Science Foundation (U.S.) (Award 1212849)Shell ResearchNational Science Foundation (U.S.). Graduate Research Fellowshi