Removal of Reflection from Nightscape Parallel Stereo Images of Distant View through Window

Camera images taken through window glass sometimes have a problem of reflection from the glass surface. It is conspicuous in night scenes because reflection intensity is considerable compared to the outside objects. This paper proposes a removing method of reflections of a planar object from night scene images taken through a window glass. Two different view point images are taken with parallel stereo camera. In the acquired images, the disparity of night scene is considered to be zero if the scene is of a distant view. In this paper, we treat the case that the relative positions of reflection and night scene in stereo images are known and the disparity appears only in the reflection as a predictable value. By calculating the pixel values of the relative position, the reflection is removed. Experimental results showed the effectiveness of the proposed method.