Abstract: According to the need of realtime video splicing, we proposed a method of realtime video splicing based on small region fusion and lookup table mapping. Firstly, we used color correction algorithm to deal with color correction of the mosaic camera video. Secondly, we estimated the image transformation parameters and the small region fusion weights at the initialization stage and stored image in the form of index tables. Finally, we used lookup table method for realtime video splicing in the video mosaic stage. The experimental results show that this method can well eliminate ghosting and splicing gap, meanwhile, the average splicing time of each frame is reduced to about 0.03 s. The method has good performance in speed and effect of video splicing.

Key words: small region fusion, color correction, video splicing