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Robust tracking of deformable object like catheter or vascular structures in X-ray images is an important technique used in image guided medical interventions for effective motion compensation and dynamic multi-modality image fusion. Tracking of such anatomical structures and devices is very challenging due to large degrees of appearance changes, low(More)
Vessel segmentation is an important problem in medical image analysis and is often challenging due to large variations in vessel appearance and profiles, as well as image noises. To address these challenges, we propose a solution by combining heterogeneous context-aware features with a discriminative learning framework. Our solution is characterized by(More)
Studies have found strong correlation between the risk of rupture of intracranial aneurysms and various physical measurements on the aneurysms, such as volume, surface area, neck length, among others. Accuracy of risk prediction relies on the accuracy of these quantities , which in turn, is determined by the precision of the underlying segmentation(More)
The objective of this study was to compare capacity of antioxidant enzymes between Khon Kaen 3 (KK3), a drought-tolerant, and Suphanburi 72 (SP72), a drought-sensitive sugarcane variety. Young sugarcane plants were grown under controlled conditions. Water stress was imposed at 4 leaf stage by withholding water supply for 4, 6 and 8 days as compared to(More)
In this paper, we developed a novel approach for interfacing a microfluidic two-dimensional droplet array to a high-speed capillary electrophoresis (HSCE) system. Picoliter-scale sample injection (ca. 200 pL) from a nanoliter-scale droplet array covered by nonvolatile oil was automatically achieved using the spontaneous injection mode, without the(More)
Tracking of curvilinear structures (CS), such as vessels and catheters, in X-ray images has become increasingly important in recent interventional applications. However, CS is often barely visible in low-dose X-ray due to overlay of multiple 3D objects in a 2D projection, making robust and accurate tracking of CS very difficult. To address this challenge,(More)
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