Motion detector and image stabilizing system
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorTakashi Sakaguchi
Life of this patent
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Abstract
A motion detector includes a flicker compensating circuit for removing flicker components from a video signal, and a motion vector detecting circuit for detecting a motion vector in response to an output signal from the flicker compensating circuit. An image stabilizing system includes a flicker compensating circuit for removing flicker components from a video signal, a motion vector detecting circuit for detecting a motion vector in response to an output signal from the flicker compensating circuit, and a motion compensating circuit for removing motion components from the video signal in response to the motion vector detected by the motion vector detecting circuit.
Claims18
A motion detector comprising:
- a flicker compensating circuit for removing flicker components from a video signal;
- and
- a motion vector detecting circuit for detecting a motion vector in response to an output signal from the flicker compensating circuit.
A video signal processing apparatus comprising:
- a first flicker compensating circuit for removing flicker components from a video signal;
- a motion vector detecting circuit for detecting a motion vector in response to an output signal from the first flicker compensating circuit;
- a second flicker compensating circuit, being separated from the first flicker compensating circuit, for removing flicker components from the video signal;
- and
- a video signal processing circuit for processing an output signal from the second flicker compensating circuit.
An image stabilizing system comprising:
- a flicker compensating circuit for removing flicker components from a video signal;
- a motion vector detecting circuit for detecting a motion vector in response to an output signal from the flicker compensating circuit;
- and
- a motion compensating circuit for removing motion components from the video signal in response to the motion vector detected by the motion vector detecting circuit.
A motion detector comprising:
- a flicker detecting circuit for detecting flicker components of an input video signal, the flicker components having a period corresponding to an interval of a plurality of fields;
- a flicker compensating circuit connected to the flicker detecting circuit for suppressing flicker components of the input video signal in response to an output signal of the flicker detecting circuit;
- and
- a motion vector detecting circuit connected to the flicker compensating circuit for detecting a motion vector in response to an output signal of the flicker compensating circuit:
- wherein the motion vector detecting circuit comprises means for memorizing an output signal of the flicker compensating circuit during a given time to provide a preceding output signal of the flicker compensating circuit, and means for comparing a current output signal of the flicker compensating circuit and the preceding output signal of the flicker compensating circuit to detect the motion vector.
An image stabilizing system comprising:
- a flicker detecting circuit for detecting flicker components of an input video signal, the flicker components having a period corresponding to an interval of a plurality of fields;
- a flicker compensating circuit connected to the flicker detecting circuit for suppressing flicker components of the input video signal in response to an output signal of the flicker detecting circuit;
- and
- a motion vector detecting circuit connected to the flicker compensating circuit for detecting a motion vector in response to an output signal of the flicker compensating circuit;
- a motion compensating circuit for removing motion components of the input video signal;
- and
- control means connected to the motion vector detecting circuit and the motion compensating circuit for controlling the motion compensating circuit in response to the motion vector detected by the motion vector detecting circuit;
- wherein the motion vector detecting circuit comprises means for memorizing an output signal of the flicker compensating circuit during a given time to provide a preceding output signal of the flicker compensating circuit, and means for comparing a current output signal of the flicker compensating circuit and the preceding output signal of the flicker compensating circuit to detect the motion vector.
Dependencies are inferred from the claim text.