The invention discloses a method for splitting a news video program and a method and a
system for
cataloging news videos. The method for splitting the news video program comprises the following steps of: sequencing detection results according to a
time sequence to obtain an
event sequence by detecting characteristic information of titles of the news video, a headline, characteristic information of comperes, lens transformation, a mute point of an audio, a switching point, a keynote period sudden change point and the like; briefing the
event sequence by adopting a preset symbol set and a production rule, and judging rough positions of start points and end points of news sections in the
event sequence; calculating a union
posterior probability of a start position of each news section near the rough start position according to the event sequence, selecting the moment with the maximum
posterior probability as the accurate start position of each news section, splitting the news video, and thus obtaining the news video sections. According to the method, the adopted
algorithm is stable and effective; the structural information in the news video can be summarized effectively; the accurate positions of splitting points of the news sections can be determined; and the news video can be split stably and accurately.