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Author Liu, Xu ♦ Doermann, David ♦ Li, Huiping
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Cross-platform Implementation ♦ Several Interesting Application ♦ Pointing Device ♦ General Camera Motion Estimation ♦ Efficient Motion Estimation Algorithm ♦ Fast Camera Motion Estimation ♦ Multi-resolution Scheme ♦ Camera-enabled Handheld Device ♦ Hand-held Device ♦ Camera Motion ♦ Search Space ♦ Camera Phone ♦ Handheld Device Present Unique Challenge ♦ Smooth Seamless Translation ♦ Mobile Phone
Description in Proc. 4th Int. Conf. Mobile and Ubiquitous Multimedia
In this paper we present an efficient motion estimation algorithm for camera-enabled handheld devices, such as mobile phones and PDAs. Compared to general camera motion estimation, the estimation of ego-motion of handheld devices presents unique challenges because most devices are limited in resources (processing power, memory and battery). The algorithm must be lightweight so it can be efficiently embedded and run fast enough to produce smooth seamless translation. Our solution includes a multi-resolution scheme which searches the match from coarse to fine; and optimization of the search space. As a demonstration, we implemented the algorithm on the Symbian based Nokia 3650/6600 camera phone, and explored several interesting applications, including using camera motion for browsing documents and as a pointing device. A cross-platform implementation is also discussed.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2005-01-01