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US 7,009,656 B2Granted
Video signal processing
AssigneeSnell & Wilcox Limited
InventorsRoderick M. Thomson, David M. Banks
Life of this patent
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Abstract
In video processing, a motion compensated process and an equivalent linear process are performed on an input signal, the processing errors of which are computed and compared. The comparison is then used to control a mix between the outputs of the two processes to produce an output signal.
Claims10
A method of video processing comprising the steps of:
- receiving an input signal;
- conducting a motion compensated video process on the input signal to form a motion compensated signal;
- conducting an equivalent linear process on the input signal to form a linear signal;
- forming a measure of relative errors in the motion compensated process and the linear process respectively;
- and
- utilising said measure to form an output signal which is a mix between the motion compensated signal and the linear signal, the relative proportions of the motion compensated signal and linear signal in said mix being determined by said measure.
3 more elements
A method of video processing comprising the steps of:
- conducting a motion compensated process on an input signal;
- conducting an equivalent linear process on the input signal;
- forming a first error signal from an output of the motion compensated process;
- forming a second error signal from an output of the linear process;
- and
- utilising the error signal to form a mix between the output of the motion compensated process and the output of the linear process.
3 more elements
A method of video processing comprising the steps of conducting a motion compensated process on an input signal;
- conducting an equivalent linear process on the input signal;
- forming a first difference signal from pictures undergoing the motion compensated process, forming a second difference signal from pictures undergoing the linear process;
- comparing the first and second difference signals;
- and utilising the comparison to form a mix between the output of the motion compensated process end the output of the linear process.
1 more element
Dependencies are inferred from the claim text.