Invention Grant
- Patent Title: Method and apparatus for detecting displacement with sub-pixel accuracy
- Patent Title (中): 用亚像素精度检测位移的方法和装置
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Application No.: US12020699Application Date: 2008-01-28
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Publication No.: US08090221B2Publication Date: 2012-01-03
- Inventor: Hsin Chia Chen , Tzu Yi Chao
- Applicant: Hsin Chia Chen , Tzu Yi Chao
- Applicant Address: TW Hsin-chu County
- Assignee: Pixart Imaging Inc.
- Current Assignee: Pixart Imaging Inc.
- Current Assignee Address: TW Hsin-chu County
- Agency: Lowe, Hauptman, Ham & Berner, LLP
- Priority: TW96124918A 20070709
- Main IPC: G06K9/32
- IPC: G06K9/32
Abstract:
A method for detecting displacement with sub-pixel accuracy includes the steps of: capturing a first array image and a second array image; interpolating the first array image to form a reference image; interpolating the second array image to form a comparison image; comparing the reference image with the comparison image so as to obtain a displacement. The present invention also provides an apparatus for detecting displacement with sub-pixel accuracy.
Public/Granted literature
- US20090016646A1 METHOD AND APPARATUS FOR DETECTING DISPLACEMENT WITH SUB-PIXEL ACCURACY Public/Granted day:2009-01-15
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