Light Efficient Flutter Shutter
نویسنده
چکیده
Light&Efficient&Flutter&Shutter& ! Moshe!Ben)Ezra! August!2012! ! ! Abstract& ! Flutter! shutter! is! technique! in! which! the! exposure! is! chopped! into! segments! and! light! is! only! integrated!part!of! the! time.!By! carefully! selecting! the! chopping! sequence! it! is!possible! to!better! condition! the! data! for! reconstruction! problems! such! as!motion! deblurring,! focal! sweeping,! and! compressed!sensing.!!The!partial!exposure!trades!better!conditioning!for!less!energy.!In!problems! such!as!motion!deblurring!the!available!energy!is!what!caused!the!problem!in!the!first!place!(as! strong! illumination! allows! short! exposure! thus! eliminates! motion! blur).! It! is! still! beneficial! because!the!benefit!from!the!better!conditioning!outweighs!the!cost!in!energy.!! ! This!documents!is!focused!on!light!efficient!flutter!shutter!that!provides!better!conditioning!and! better!energy!utilization!than!conventional!flutter!shutter.! ! The!document!is!related!to!the!following!patent!and!patent!applications:! 1. US!Patent!7,756,407!Method!and!apparatus!for!deblurring!images.!! 2. US!Patent!App.!2011.024.2334!Time!Interleaved!Exposures!and!Multiplexed!Illumination.! ! ! & & & The MIT License
منابع مشابه
The Flutter Shutter Code Calculator
The goal of the flutter shutter is to make uniform motion blur invertible, by a “fluttering” shutter that opens and closes on a sequence of well chosen sub-intervals of the exposure time interval. In other words, the photon flux is modulated according to a well chosen sequence called flutter shutter code. This article provides a numerical method that computes optimal flutter shutter codes in te...
متن کاملThe Flutter Shutter Paradox
Acquiring good quality images of moving objects by a digital camera remains a valid question, particularly if the velocity of the photographed object is only partially known, it is virtually impossible to tune an optimal exposure time. The same question arises when a solid object is being photographed by a moving camera. This is not only frequent, but even necessary when the camera is embarked ...
متن کاملThe Flutter Shutter Camera Simulator
The proposed method simulates an embedded flutter shutter camera implemented either analogically or numerically, and computes its performance. The goal of the flutter shutter is to make motion blur invertible, by a “fluttering” shutter that opens and closes on a well chosen sequence of time intervals. In the simulations the motion is assumed uniform, and the user can choose its velocity. Severa...
متن کاملAnalysis of Motion Blur with a Flutter Shutter Camera for Non-linear Motion
Motion blurs confound many computer vision problems. The fluttered shutter (FS) camera [1] tackles the motion deblurring problem by emulating invertible broadband blur kernels. However, existing FS methods assume known constant velocity motions, e.g., via user specifications. In this paper, we extend the FS technique to general 1D motions and develop an automatic motion-from-blur framework by a...
متن کاملVelocity-Dependent Shutter Sequences for Motion Deblurring
We extend the flutter shutter method of Raskar et al. [1] to fast-moving objects by first demonstrating that no coded exposure sequence yields an invertible point spread function for all velocities. Thus, the shutter sequence must depend on object velocity, and we propose a method to compute such velocity-dependent sequences. We demonstrate improved image quality from velocity dependent sequenc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- CoRR
دوره abs/1509.01220 شماره
صفحات -
تاریخ انتشار 2015