Matsushita Electric Industrial Co., Ltd.

Masataka Higuchi

Seigo Asada

Shigeatsu Asari

Masaaki Kobayashi

Akira Iketani

Tadashi Ono

Masaaki Higashida

Junji Yoshida

Souichirou Fujioka

Hiroyuki Uenaka

Toshihiko Fukai

A local server records compressed digital video data according to a first image compression format at normal and four times speeds, while a main server records compressed digital video data according to a second image compression format at normal speed. An image format converter converts compressed digital video data according to the first image compression format output at normal speed from the local server to compressed digital video data according to the second image compression format to be sent to the main server. The image format converter also converts compressed digital video data according to the second image compression format output at normal speed from the main server to compressed digital video data according to the first image compression format to be sent to the local server.

Compressed video data processing with conversion of image compression format

The present invention provides a VTR collecting system in which various data such as, for example, a representative still picture, start time, stop time, OK/NG flag, etc., of each scene is recorded as editorial base data to the memory card when collecting, and a position of each necessary scene can be searched for with references to the recorded editorial base data without reproducing the video tape from the start to the end at the time of editing, and therefore, the editorial work can be performed quickly and easily.

Video/audio information collecting system using video camera and its editing system

A local server records compressed digital video data according to a first image compression format at normal and four times speeds, while a main server records compressed digital video data according to a second image compression format at normal speed. An image format converter is provided between the local and main servers. The image format converter converts compressed digital video data according to the first image compression format output at normal speed from the local server to compressed digital video data according to the second image compression format to be sent to the main server. The image format converter also converts compressed digital video data according to the second image compression format output at normal speed from the main server to compressed digital video data according to the first image compression format to be sent to the local server. Then, compressed digital video data can be input and output at a high speed when digital video data compressed are recorded after the image conversion format is changed and compressed digital video data are output for reproduction after the image conversion format is changed.

To reduce an amount of image data to transmit, and thereby achieve efficient utilization of a data transmission line, only coarse image information containing at least DC components of compressed image data stored in compressed form in a video server is transferred into a personal computer for display, and based on the displayed image, an editor performs edit work on the image of interest and produces additional information relating to the image.

Image editing apparatus

The video signal processing apparatus of the invention includes a representative component extractor which receives a video signal including a signal representing representative components and a signal representing non-representative components, thereby extracting the signal representing the representative components from the video signal.

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Toyono-gun, Japan

Masataka Higuchi