Yoshifumi Kitamura

Three-dimensional data acquisition by trinocular vision

For recognition of three-dimensional (3D) shapes and measurement of 3D positions of objects it is important for a vision system to be able to measure the 3D data of dense points in the environment. One approach is to measure the distance on the basis of the triangulation principle from the disparity of two images. However, this binocular vision method has difficulty in finding a correspondence of features between two images. This correspondence problem can be solved geometrically by adding another camera, i.e. by trinocular vision. This paper presents the principles and implementation details of trinocular vision. On the basis of the proposed method, we carried out several experiments, from which we found that many correct correspondences could be established, even for images of a complex scene, by only the geometrical constraint of trinocular vision. However, when there are dense points in the image, multiple candidate points are found and a unique correspondence cannot be established. Two approaches to solve this problem are discussed in this paper

D-FLIP: Dynamic 38; Flexible Interactive PhotoShow

We propose D-FLIP, a novel algorithm that dynamically displays a set of digital photos using different principles for organizing them. A combination of requirements for photo arrangements can be flexibly replaced or added through the interaction and the results are continuously and dynamically displayed. D-FLIP uses combinatorial optimization and emergent computation approach, where parameters such as location, size, and photo angle are considered to be functions of time; dynamically determined by local relationships among adjacent photos at every time instance. Consequently, the global layout of all photos is automatically varied.Interactive technology has been one of the most important inseparable wheels of SIGGRAPH Asia, and the Emerging Technologies program plays a vital role in driving the development of research communities all over the world to pursue technological innovations that will have an impact on everyday life. To drive research that will help our lives in future, extensive research on creating working prototypes with novel technological innovations is crucial. n nThis year, the Emerging Technologies program presents a broad scope of topics, reflecting the innovation of interactive technologies and a maturation of the field as it expands to include interactive visualization and other graphics-related technologies. n nBe fascinated by hands-on demonstrations that expand the limits of current display technologies, and exciting new hardware that enable sophisticated and nuanced user input, innovative interaction techniques that enable more complex interaction with application data and functionality, as well as excellent examples of haptics developed to support multi-/cross-modality scenarios.