Effect of Scene Emphasis by Pseudo Displacement of Viewing Distance in Stereoscopic Image

In a three-dimensional vision, as for the picture exhibited by a monitor or a screen, size and the aspect ratio of the images are usually fixed. However, we think that scenes can be visually emphasized more by changing the presentation position of an image, i.e., the position of a screen, or a viewing angle. In this research, we examined the displaying method that Pseudo-screen is placed in the Stereoscopic 3D (S3D) space. Pseudo-screen induce changing the viewing distance artificially. And pseudo-screen itself displays S3D images. We verified whether the scene would be emphasized, in other words, the sense of “watching it nearby”. The prior study or displaying method about previously described are uncommon. As a first step, we evaluated visual pattern of the pseudo-screen and surrounding by the impression evaluation experiment for students. At the second step, we displayed the visual stimulus, in which the position of pseudo-screen changes with the field of view of shots. These shots constituted a scene as montage. In the examination, we verified whether the stimulus caused change of viewing distance, emphasis of the scene, and is recognized as montage. Regarding the pattern evaluation, the images that wireframe or plane is extended from edge of the pseudo-screen are suitable for the display method. And, in the scene display examination, the shots constructed simple wireframe or plane are evaluated. Most participants recognized that the position of the screen is changed, and “watching it nearby”. As a result, we considered that changing viewing distance caused by changing position of pseudo-screen is effective for emphasis of the scene.