Mobile Camera-Based User Interaction
We present an approach for facilitating user interaction on mobile devices, focusing on camera-enabled mobile phones. A user interacts with an application by moving their device. An on-board camera is used to capture incoming video and the scrolling direction and magnitude are estimated using a feature-based tracking algorithm. The direction is used as the scroll direction in the application, and the magnitude is used to set the zoom level. The camera is treated as a pointing device and zoom level control in applications. Our approach generates mouse events, so any application that is mouse-driven can make use of this technique.
Reflected confocal microscopy has been widely used in clinical application in dermatology. In recent years, ::: multiphoton microscopy has also emerged as an important minimally invasive bioimaging technique for the skin. In this ::: study, we combine reflected confocal microscopy and multiphoton microscopy for skin imaging. In the epidermis, ::: reflected confocal signals are expected to help in delineating cell borders while multiphoton signals provide cytoplasmic ::: morphologies. In the dermis, second harmonic generation signals provide the morphology of collagen fibers. When ::: three-dimensional images are projected, the detailed distribution of cellular component and extracellular matrix in skin ::: can be obtained. Properly developed, this technique is of great potential for in vivo clinical application.