Invention Grant
- Patent Title: Estimation of point spread functions from motion-blurred images
- Patent Title (中): 从运动模糊图像估计点扩散函数
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Application No.: US12721263Application Date: 2010-03-10
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Publication No.: US08698905B2Publication Date: 2014-04-15
- Inventor: Artemy Baxansky , Meir Tzur
- Applicant: Artemy Baxansky , Meir Tzur
- Applicant Address: US CA San Jose
- Assignee: CSR Technology Inc.
- Current Assignee: CSR Technology Inc.
- Current Assignee Address: US CA San Jose
- Agency: Frommer Lawrence & Haug LLP
- Agent John W. Branch
- Main IPC: H04N5/228
- IPC: H04N5/228

Abstract:
Methods for estimating the point spread function (PSF) of a motion-blurred image are disclosed and claimed. In certain embodiments, the estimated PSF may be used to compensate for the blur caused by hand-shake without the use of an accelerometer or gyro. Edge spread functions may be extracted along different directions from straight edges in a blurred image and combined to find the PSF that best matches. In other embodiments, the blur response to edges of other forms may similarly be extracted, such as corners or circles, and combined to find the best matching PSF. The PSF may then be represented in a parametric form, where the parameters used are related to low-order polynomial coefficients of the angular velocity vx(t) and vy(t) as a function of time.
Public/Granted literature
- US20100231732A1 ESTIMATION OF POINT SPREAD FUNCTIONS FROM MOTION-BLURRED IMAGES Public/Granted day:2010-09-16
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