Research On Softedge Blending Technology Application In Large-scale Live Event

Nowadays, along with the rapid development of China’s economy, more andmore large-scale performances, business promotion activities, large-scale celebrationof the governmental organizations and world-class sports, cultural events,graduallycome into people’s life.In2008, the remarkable Beijing Olympic Games opening ceremony, huge LEDscrolls on the ground, showing five thousand years history of China. In2010, theShanghai World Expo,128meters long,6meters wide dynamic " Along the riverduring ching ming festival " has become the biggest highlight of the China Pavilion.That’s a vivid record of people life in the twelfth century.2012CCTV Spring FestivalGala, transformed LED screen, make audience feel like being in the real scene, toenjoy a visual feast.2013, Shanghai Oriental TV New Year’s Eve countdown, stagedin the Bund4D light show to create universal grand scene of the New Year.The important role of large-scale activities in these event not only gives us astrong visual sensory impact, let us know the marvel of digital technology, at the sametime, also have re-cognitive thinking of expression of large-scale activities.In these large-scale events, we always pursue the brighter color and larger screen,high-resolution and high-definition display, The traditional TV wall projection, hasbeen difficult to meet our requirements, then what kind of technology we need toachieve such a magnificent effect? Seamless (edge blend) technology is the latestvideo technology, undoubtedly being gradually adapt to this demand.Edge blend technology make the several overlapped images looks like one imagewith smooth transition and same color balance. The technology is based on computerprogram and it can match the SIFT feature of images to make them blendedseamlessly. This technology is gradually used in large-scale image projection, anddefinitely played a positive role. It is also apply in the international high-endlarge-scale activities. Playing an important role in the development of digital stagebackground and multimedia theatrical arts. We use edge blend video technology inlarge-scale events, not only from the point of view of technology research anddevelopment, also combined with the theatrical arts. This technology still has morecontent for us to study, and also has the imaginable future.