High Dynamic Range Imaging for Dynamic Scenes

Although the currently available digital cameras typically provide 256 levels of brightness data at each pixel, a real world scenes contains a very wide range of brightness variations. High Dynamic Range (HDR) images contain wider range of brightness information than a normal image and are a new trend in photography. In the conventional method multiple photographs of same scene are captured at different exposures and then combined to produce HDR images. Clearly these methods require a still scene and are not able to produce HDR image for moving scene or moving camera. We present a method based on Spatial Varying Exposure (SVE) system. Here we capture only a single photograph of the scene but vary the exposure spatially. By this method it is possible to create the HDR image for dynamic scene by trading-off spatial resolution.