An automatic parallax adjustment method for stereoscopic augmented reality systems

This paper presents an automatic parallax adjustment method that considers the border effect to produce more realistic stereo images on a stereoscopic augmented reality system. Three-dimensional (3D) imaging is an emerging method of displaying three-dimensional information and providing an immersive and intuitive experience with augmented reality. However, the protruding parts of displayed stereoscopic images may be blurry and cause viewing discomfort. Furthermore, the border effect may make it difficult for an imaging system to display regions next to screen borders, even with considerable negative parallax. This paper proposes a method of automatically adjusting the parallax of displayed stereo images by analyzing the feature points in regions near screen borders to produce better stereo effects. Experimental results and a subjective assessment of human factor issues indicate that the proposed method makes stereoscopic augmented reality systems significantly more attractive and comfortable to view.