With developing of computer technology and TV technology

the amount of digital video program is larger and larger. In order to find out the content of the video program rapidly

a system of browsing video key-frames based on DVB(digital video broadcasting) is presented in the paper. Firstly

the video sequences are segmented into shots directly by making use of compressed parameters provided by MPEG compressed video

such as DCT coefficients

motion vector

the types of macroblock and so on. Secondly

the first I-frame is selected as key-frame

and DC image of the I-frame is reconstructed. Finally

based on the standard of DVB

the SI tables are extended to realize the data structure of encapsulating the key-frames so that the key-frames of video in TV stations can be picked-up and transferred. The system diagram and a real example of rapid browsing prototype based on DC image of key-frame are offered in the last of the paper. Because the method that presented in the paper makes use of the compressed parameters provided by MPEG compressed video and reducing the cost of decompressed

the method has the feature of lower computing cost and faster browsing.