Apparatus and method for reducing motion blur in a video signal
First Claim
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1. An apparatus for reducing motion blur in a video signal, comprising:
- an analysing means for determining edge characteristics of an input video signal and for providing a motion estimation of an edge within said input video signal;
a generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation; and
an adding means for adding the synthetic detail signal to the edge within the input video signal and for outputting an output video signal,wherein the generation means further includes;
a gain factor control means for calculating a gain factor (ag) that represents a height of the edge,a height independent detail signal generation means for generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, anda multiplication means for multiplying the height independent detail signal with the gain factor (ag) to obtain the synthetic detail signal, and for submitting the synthetic detail signal to the adding means.
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Abstract
The present invention relates to an apparatus for reducing motion blur in a video signal, comprising an analysing means for determining edge characteristics of an input video signal and for providing motion estimation of an edge within said input video signal, generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, and an adding means for adding the detail signal to the edge within the input video signal and outputting an output video signal.
The present invention further relates to a method for reducing motion blur in a video signal.
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Citations
21 Claims
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1. An apparatus for reducing motion blur in a video signal, comprising:
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an analysing means for determining edge characteristics of an input video signal and for providing a motion estimation of an edge within said input video signal; a generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation; and an adding means for adding the synthetic detail signal to the edge within the input video signal and for outputting an output video signal, wherein the generation means further includes; a gain factor control means for calculating a gain factor (ag) that represents a height of the edge, a height independent detail signal generation means for generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, and a multiplication means for multiplying the height independent detail signal with the gain factor (ag) to obtain the synthetic detail signal, and for submitting the synthetic detail signal to the adding means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for reducing motion blur in a video signal, comprising:
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an analysing means for determining edge characteristics of an input video signal and for providing a motion estimation of an edge within said input video signal; a generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation; and an adding means for adding the synthetic detail signal to the edge within the input video signal and for outputting an output video signal, wherein the generation means further includes; a gain factor control means for calculating a gain factor (ag) that represents a height of the edge, a height independent detail signal generation means for generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, the height independent detail signal generation means calculates the height independent detail signal based on information submitted by the analysing means, and the height independent detail signal generation means includes a first modelling means for modelling a transmission characteristics of an ideal transmission channel for providing a modelled ideal signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An apparatus for reducing motion blur in a video signal, comprising:
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an analysing means for determining edge characteristics of an input video signal and for providing a motion estimation of an edge within said input video signal; a generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation; and an adding means for adding the synthetic detail signal to the edge within the input video signal and for outputting an output video signal, wherein the generation means further includes; a gain factor control means for calculating a gain factor (ag) that represents a height of the edge, a height independent detail signal generation means for generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, the height independent detail signal generation means calculates the height independent detail signal based on information submitted by the analysing means, and the height independent detail signal generation means includes second modelling means for modelling transmission characteristics of a real transmission channel for providing a modelled real signal. - View Dependent Claims (18, 19)
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20. A system for providing an overall improvement of video signal quality, comprising:
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a segmentation means for segmenting a video signal into edges, homogeneous parts, and textures; an apparatus for reducing motion blur with respect to said edges including; an analysing means for determining edge characteristics of said video signal and for providing a motion estimation of said edge within said input video signal, a generation means for generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation, and an adding means for adding the synthetic detail signal to said edge within said video signal and for outputting an output video signal; a modified MCIF means for reducing motion blur with respect to said textures; and a combination means for combining motion blur reduced signals to said output video signal, wherein the generation means further includes; a gain factor control means for calculating a gain factor (ag) that represents a height of the edge, a height independent detail signal generation means for generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, and a multiplication means for multiplying the height independent detail signal with the gain factor (ag) to obtain the synthetic detail signal, and for submitting the synthetic detail signal to the adding means.
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21. A method for reducing motion blur in a video signal, the method comprising steps of:
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determining edge characteristics of an input video signal;
providing a motion estimation of an edge within said input video signal;generating a synthetic detail signal dependent on said edge characteristics and said motion estimation, said synthetic detail signal being artificially generated and being only dependent on said edge characteristics and said motion estimation; and adding the synthetic detail signal to the edge within the input video signal and outputting an output video signal, wherein the step of generating further includes the steps of; calculating a gain factor (ag) that represents a height of the edge, generating a height independent detail signal based on a position and an orientation of the edge, and the motion estimation, and multiplying the height independent detail signal with the gain factor (ag) to obtain the synthetic detail signal.
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Specification