Presentation 2005-03-18
Stabilizing Ego-Motion Estimation by Active Wearable Cameras using Local Bundle Adjustment
Tomohiko IKEDA, Akihiro SUGIMOTO,
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Abstract(in English) The binocular independent fixation control is the camera control of two mounted active cameras where each of them independently and automatically fixates its optical axis to its own fixation point. A method using this camera control was proposed to incrementally estimate ego-motion from two time-series frames. The method, however, has a problem that estimation accuracy gradually becomes worse as the motion trajectory becomes longer and longer. This is due to accumulation of estimation errors incurred in each estimation step. To keep estimation accuracy stable even for a long trajectory, we propose to locally apply the bundle adjustment to each estimated motion so that the modified estimation becomes geometrically consistent with time-series frames acquired so far. This modification realizes stable estimation of a long motion trajectory.
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Keyword(in English) ego-motion estimation / local bundle adjustment / fixation point / optical flow / active camera
Paper # TL2004-87,PRMU2004-255
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Conference Information
Committee PRMU
Conference Date 2005/3/11(1days)
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Registration To Pattern Recognition and Media Understanding (PRMU)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Stabilizing Ego-Motion Estimation by Active Wearable Cameras using Local Bundle Adjustment
Sub Title (in English)
Keyword(1) ego-motion estimation
Keyword(2) local bundle adjustment
Keyword(3) fixation point
Keyword(4) optical flow
Keyword(5) active camera
1st Author's Name Tomohiko IKEDA
1st Author's Affiliation School of Science and Technology, Chiba University()
2nd Author's Name Akihiro SUGIMOTO
2nd Author's Affiliation National Institute of Informatics
Date 2005-03-18
Paper # TL2004-87,PRMU2004-255
Volume (vol) vol.104
Number (no) 742
Page pp.pp.-
#Pages 6
Date of Issue