Methods and systems for efficient video compression by recording various state signals of video cameras
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United States of America Patent
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Jul 11, 2006
Grant Date -
Mar 27, 2003
app pub date -
Sep 26, 2001
filing date -
Sep 26, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and systems for efficient video compression by recording various state signals of cameras. In accordance with the teaching of the present invention, a video camera with means to record the movement, zooming state, focus state, and aperture state of the video camera is provided. The luminous intensity, camera identification number and frame index are also recorded. These various state signals are recorded along with video and audio signals on recording media, such as magnetic tapes, memory cards, and hard drives in a predetermined data format. Additionally, video compression algorithms, which utilize such state signals to predict the current frame from previous reconstructed images, are provided. In particular, the information on the various states of the video camera is useful in obtaining accurate motion compensated images.
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