Research, standards and thoughts for the digital world

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MPEG: vision, execution, results and a conclusion

Introduction In 1987, a few months before MPEG was the established, ISO TC 97 Data Processing became the ISO/IEC Joint Technical Committee 1 (JTC 1) on Information Technology. With this operation the data processing industry, renamed information technology industry on the occasion, was able to concentrate on a single Technical Committee (TC) all standardisation activities needed by that industry, including those “electrical”, until then the exclusive purview of IEC. Thirty-two years later, JTC 1 has become a very large TC,…

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Who “decides” in MPEG?

If MPEG were a typical company, the answer to this question would be simple. Persons in charge of different levels of the organisation “decide”. But MPEG is not a company and there is no chain of command where A tells B to do C or else. Decisions are made, but how? As an autocracy, an oligarchy or a democracy? To answer these questions, let’s first see how the work in MPEG is organised. The convenor chairs the 3 plenary sessions.…

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What is the difference between an image and a video frame?

The question looks innocent enough. A video is a sequence of images (called frames) captured and eventually displayed at a given frequency. However, by stopping at a specific frame of the sequence, a single video frame, i.e. an image, is obtained. If we talk of a sequence of video frames, that would always be true. It would also be true if an image compression algorithm (an “intra-frame” coding system) is applied to each individual frame. Such coding system may not…

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MPEG and JPEG are grown up

Introduction A group of MPEG and JPEG members have developed a proposal seek to leverage the impact MPEG and JPEG standards have had on thousands of companies and billions of people all over the world. A few numbers related to 2018 tell a long story. At the device level, the installed base of MPEG-enabled devices was worth 2.8 trillion USD and the value of devices in that year was in excess of 1 trillion USD. At the service level, the…

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