A runtime reconfigurable very-large-scale integration （VLSI） architecture for image and video scaling by arbitrary factors with good antialiasing performance is presented in this paper. Video scal- ing is used in a ...A runtime reconfigurable very-large-scale integration （VLSI） architecture for image and video scaling by arbitrary factors with good antialiasing performance is presented in this paper. Video scal- ing is used in a wide range of applications from broadcast, medical imaging and high-resolution video effects to video surveillance, and video conferencing. Many algorithms have been proposed for these applications, such as piecewise polynomial kernels and windowed sinc kernels. The sum of three shifted versions of a B-spline function, whose weights can be adjusted for different applications, is adopted as the main filter. The proposed algorithm is confirmed to be effective on image scaling ap- plications and also verified by many widely acknowledged image quality measures. The reconfigu- rable hardware architecture constitutes an arbitrary scaler with low resource consumption and high performance targeted for field programmable gate array （FPGA） devices. The scaling factor can be changed on-the-fly, and the filter can also be changed during runtime within a unifying framework.展开更多
近来,看过影片《双面北野武》的朋友一定对它的片头有着相当深刻的印象,许多五彩缤纷的小图片拼合成北野武的图像,绚丽的视觉冲击,独特的魅力紧紧地抓住了观者的眼球。这就是镶嵌式的拼合视频效果,对于这样的片头制作,让我们一起利用Ado...近来,看过影片《双面北野武》的朋友一定对它的片头有着相当深刻的印象,许多五彩缤纷的小图片拼合成北野武的图像,绚丽的视觉冲击,独特的魅力紧紧地抓住了观者的眼球。这就是镶嵌式的拼合视频效果,对于这样的片头制作,让我们一起利用Adobe After Effects 6.5 Pro来尝试吧。展开更多
文摘对于世界杯上转瞬即逝的精彩,没有球迷愿意错过。他们想记录下64场比赛中的每次防守、进攻、射门以及进球等瞬间,难道只有用那台 VHS 录像机?当然不是,现在我们的记录方式旱已实现数字化,作为载体的光盘、硬盘已进入了生活中的方方面面,VHS录像机被 DVD 录像机、电视卡淘汰。下面就让我们去看看哪些产品能帮助我们记录下世界杯的难忘回忆。
基金Supported by the National Natural Science Foundation of China(No.60972126)the Joint Funds of the National Natural Science Foundation of China(No.U0935002/L05)+1 种基金the Beijing Municipal Natural Science Foundation(No.4102060)the State Key Program of the National Natural Science of China(No.61032007)
文摘A runtime reconfigurable very-large-scale integration （VLSI） architecture for image and video scaling by arbitrary factors with good antialiasing performance is presented in this paper. Video scal- ing is used in a wide range of applications from broadcast, medical imaging and high-resolution video effects to video surveillance, and video conferencing. Many algorithms have been proposed for these applications, such as piecewise polynomial kernels and windowed sinc kernels. The sum of three shifted versions of a B-spline function, whose weights can be adjusted for different applications, is adopted as the main filter. The proposed algorithm is confirmed to be effective on image scaling ap- plications and also verified by many widely acknowledged image quality measures. The reconfigu- rable hardware architecture constitutes an arbitrary scaler with low resource consumption and high performance targeted for field programmable gate array （FPGA） devices. The scaling factor can be changed on-the-fly, and the filter can also be changed during runtime within a unifying framework.
