Abstract
This study discusses the condition of Wide-Field-Integration (WFI) of optic flow to make it as a realistic guidance and navigation system for space probes. WFI of optic flow is a bio-inspired navigation system mimicking visual processing system of flying insects using their compound eyes. However, in a real system, photoreceptors on a spherical surface used in WFI of optic flow are replaced by pixels on flat image surfaces of cameras, and the camera's field of view is limited. This paper examines the effect of the realistic restrictions for WFI of optic flows on the estimation performance in numerical simulations. The estimation accuracy is evaluated for several parameters: the field of view and the resolution of a camera, which is used instead of photoreceptors. Effects of space probe motion and sensor noises are also evaluated. It is shown that a camera with a wider field of view shows better accuracy, when the total number of pixels (or photoreceptors) is same.
| Original language | English |
|---|---|
| Title of host publication | 65th International Astronautical Congress 2014, IAC 2014: Our World Needs Space |
| Publisher | International Astronautical Federation, IAF |
| Pages | 5151-5159 |
| Number of pages | 9 |
| Volume | 7 |
| ISBN (Electronic) | 9781634399869 |
| Publication status | Published - 2014 |
| Event | 65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014 - Toronto, Canada Duration: Sep 29 2014 → Oct 3 2014 |
Other
| Other | 65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014 |
|---|---|
| Country | Canada |
| City | Toronto |
| Period | 9/29/14 → 10/3/14 |
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All Science Journal Classification (ASJC) codes
- Space and Planetary Science
- Aerospace Engineering
- Astronomy and Astrophysics
Cite this
Wide-field-integration of optic flow for realistic estimation system for space probes. / Hokamoto, Shinji; Oishi, Masataka; Kobayashi, Naoto; Bando, Mai.
65th International Astronautical Congress 2014, IAC 2014: Our World Needs Space. Vol. 7 International Astronautical Federation, IAF, 2014. p. 5151-5159.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Wide-field-integration of optic flow for realistic estimation system for space probes
AU - Hokamoto, Shinji
AU - Oishi, Masataka
AU - Kobayashi, Naoto
AU - Bando, Mai
PY - 2014
Y1 - 2014
N2 - This study discusses the condition of Wide-Field-Integration (WFI) of optic flow to make it as a realistic guidance and navigation system for space probes. WFI of optic flow is a bio-inspired navigation system mimicking visual processing system of flying insects using their compound eyes. However, in a real system, photoreceptors on a spherical surface used in WFI of optic flow are replaced by pixels on flat image surfaces of cameras, and the camera's field of view is limited. This paper examines the effect of the realistic restrictions for WFI of optic flows on the estimation performance in numerical simulations. The estimation accuracy is evaluated for several parameters: the field of view and the resolution of a camera, which is used instead of photoreceptors. Effects of space probe motion and sensor noises are also evaluated. It is shown that a camera with a wider field of view shows better accuracy, when the total number of pixels (or photoreceptors) is same.
AB - This study discusses the condition of Wide-Field-Integration (WFI) of optic flow to make it as a realistic guidance and navigation system for space probes. WFI of optic flow is a bio-inspired navigation system mimicking visual processing system of flying insects using their compound eyes. However, in a real system, photoreceptors on a spherical surface used in WFI of optic flow are replaced by pixels on flat image surfaces of cameras, and the camera's field of view is limited. This paper examines the effect of the realistic restrictions for WFI of optic flows on the estimation performance in numerical simulations. The estimation accuracy is evaluated for several parameters: the field of view and the resolution of a camera, which is used instead of photoreceptors. Effects of space probe motion and sensor noises are also evaluated. It is shown that a camera with a wider field of view shows better accuracy, when the total number of pixels (or photoreceptors) is same.
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M3 - Conference contribution
VL - 7
SP - 5151
EP - 5159
BT - 65th International Astronautical Congress 2014, IAC 2014: Our World Needs Space
PB - International Astronautical Federation, IAF
ER -