t@b ZS4 for linux 

t@b ZS4 is a video compositing/editing system with more than 120 built-in video effects including excellent color and chroma keying. Also features custom output size and effect to audio wave form slaving. Visit http://www.zs4.net.
free t@b zs4 zwei-stein video editor editing compositor compositing effects multi-track multi track green screen greenscreen

t@b ZS4 for win32 

t@b ZS4 is a video compositing/editing system with more than 120 built-in video effects including excellent color and chroma keying. Also features custom output size and effect to audio wave form slaving. Visit http://www.zs4.net.
free t@b zs4 zwei-stein video editor editing compositor compositing effects multi-track multi track green screen greenscreen

PatchMaker 

PatchMaker is a 2D motion tracking program for video compositing. It can determine the motion of a selected object in the scene to a subpixel precision under a specified parametric motion model.
tracking motion stabilizing effect composing editing video montage overlay camera jitter transformation patch film