A new approach for automatic selection and transfer of corresponding image points in digital video image sequences

J. R. Tsay, I. C. Lee

研究成果: Conference article同行評審

摘要

We present a new approach for automatic selection and transfer of corresponding image points in digital video (DV) image sequences. This approach utilizes and extends some well-known techniques and theories (e.g. the optical flow theory) as well as a designed simple error-detection mechanism to achieve a much better efficiency than the well-known Lucas-Kanade optical flow estimation (LK) method. Our test results use the SONY DCR-PC115 DV image sequences and show that the trackable range of 3-4 pixels in the LK method can apparently be enlarged to 30 pixels in this new approach. The proposed error-detection mechanism simply utilizes the average gradient, normalized cross-correlation, and a simple image registration aided by least squares adjustment. Test results show that it can efficiently detect and delete wrong tracked points, and thus improve the quality of point transfer, and provide accurate coordinates of a large number of corresponding image points in DV image sequences. This work aims at high precision automatic image triangulation for the automatic real-time mobile mapping vehicle system (MMVS). Some future works need to be done.

原文English
頁(從 - 到)725-729
頁數5
期刊International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
35
出版狀態Published - 2004 一月 1
事件20th ISPRS Congress Technical Commission V - Istanbul, Turkey
持續時間: 2004 七月 122004 七月 23

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Geography, Planning and Development

指紋 深入研究「A new approach for automatic selection and transfer of corresponding image points in digital video image sequences」主題。共同形成了獨特的指紋。

引用此