RESEARCHES
Smart Vision & Robotic Sensing
![](https://robotics.hiroshima-u.ac.jp/wp/wp-content/uploads/2020/04/img_idaku_ishii.jpg)
Professor, Robotics Laboratory
Smart Innovation Program, Graduate School of Advanced Science and Engineering
Hiroshima University
Smart Innovation Program, Graduate School of Advanced Science and Engineering
Hiroshima University
Idaku ISHII
- >> Research Contents
- In order to establish high-speed robot senses that are much faster than human senses, we are conducting research and development of information systems and devices that can achieve real-time image processing at 1000 frames/s or greater. As well as integrated algorithms to accelerate sensor information processing, we are also studying new sensing methodologies based on vibration and flow dynamics; they are too fast for humans to sense.
3D Shape Measurement Using a Multi-Sided Mirror
![](https://robotics.hiroshima-u.ac.jp/wp/assets/images/hyper_human_applications/mirror3D/spacetransform.jpg)
In this study, we proposed a new idea for high-speed and high-resolution 3D shape measurement based on light-section method by setting a multi-sided mirror between an image sensor and a measured object, and developed a prototype system for 3D shape measurement based on a high speed vision hardware, which can process a 1024×1024 pixels image at 1000fps.
The light-section method, that is a well-known active 3D shape measurement method, is not so efficient for high-speed 3D shape measurement, because it can only obtain an intersected 3D profile from a 2D image. Assuming planar objects to be measured, spatial transforms of the image area of the image sensor by using a multi-sided mirror in our method, enable a wider measurement range in a direction than the spatial resolution of an image sensor based on the light-section method.
![](https://robotics.hiroshima-u.ac.jp/wp/assets/images/hyper_human_applications/mirror3D/mirror1.jpg)
Wedemonstrated the effectiveness of the 3D shape measurement system by showing the measurement results for the 3D shapes of solders on a printed circuit board.
![](https://robotics.hiroshima-u.ac.jp/wp/assets/images/hyper_human_applications/mirror3D/mirror2.jpg)
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mouse shape MPG(2.0M) |
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printed circuit board MPG(1.1M) |