This book focuses on the two psychological factors of naturalness and ease of viewing of three-dimensional high-definition television (3D HDTV) images. It has been said that distortions peculiar to stereoscopic images, such as the "puppet theater" effect or the "cardboard" effect, spoil the sense of presence. Whereas many earlier studies have focused on geometrical calculations about these distortions, this book instead describes the relationship between the naturalness of reproduced 3D HDTV images and the nonlinearity of depthwise reproduction. The ease of viewing of each scene is regarded as one of the causal factors of visual fatigue. Many of the earlier studies have been concerned with the accurate extraction of local parallax; however, this book describes the typical spatiotemporal distribution of parallax in 3D images. The purpose of the book is to examine the correlations between the psychological factors and amount of characteristics of parallax distribution in order to understand the characteristics of easy- and difficult-to-view images and then to seek to create a new 3D HDTV system that minimizes visual fatigue for the viewer. The book is an important resource for researchers who wish to investigate and better understand various psychological effects caused by stereoscopic images.

Autorentext
Dr. Yamanoue is a senior researcher of NHK Science and Technology Research Laboratories (STRL) and a member of Institute of Image Information and Television Engineers of Japan (ITE).

He has received the following awards.
-Technical Development Award regarding Shooting Technologies of 3D HDTV from Motion Picture and Television Engineering Society of Japan in 1993.
-Best Paper Award from The Institute of Image Information and Television Engineers in 1994.
-Fujio Frontier Award for making stereoscopic test materials from The Institute of Image Information and Television Engineers in 1998.

(STRL is the sole research institute in Japan specializing in broadcasting technology. As a division of NHK, Japan's national public broadcaster which broadcasts on two terrestrial television channels, three satellite television channels, and three radio channels, STRL has the role of leading Japan in broadcasting technology and enriching broadcasting culture. )

Inhalt
Individual Variation in 3-D Viewing Functions.- Research on 3-D Image Distortions Caused by Shooting and Viewing Conditions.- Research on Difference between the Characteristics of Left and Right Images.- The Development of a 3D HDTV Camera and Display.- Test materials.- Parallax distribution and psychological effects in stereoscopic HDTV.- Visual fatigue on viewing stereoscopic television.