The principle how CCD camera causes vertical blooming is investigated,and a technique based on vertical driving timing is presented.Based on the control principle of CCD vertical driving timing,a special driving timing with a vertical shift timing inserted between two frames,which can transfer the remaining charge,is used for clearing the vertical blooming of the high-intensity-pixel.The driving timing is tested on a CCD demo board of ICX205,and the testing results show that the vertical blooming is deleted...