Noise reduction apparatus, noise reduction method, program and medium
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShuji Yano, Takeshi Hamasaki
Life of this patent
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Abstract
A noise reduction apparatus with simultaneous processing for allowing Simultaneous processing of image signals of a portion containing a noise processing object pixel to be inputted, wherein the image signals are existing at Spatially different locations or the image signals are contained in fields or frames at different times. A filtering is performed by low pass filter. A noise component extractor extracts noise components based upon outputs of the filter operation and noise attenuation means of attenuating noise using outputs of the noise components extraction means with respect to the noise processing object pixel within the outputs of the simultaneous processing means.
Claims11
A noise reduction apparatus, comprising:
- simultaneous processing means of allowing to simultaneously processing image signals of a portion containing a noise processing object pixel to be inputted, wherein (a) the image signals are existing in spatially different locations, or (b) the image signals are contained in fields or frames at different times in terms of time;
- filter operation means of performing filter operations with respect to outputs of the simultaneous processing means;
- noise components extraction means of extracting noise components based upon outputs of the filter operation means;
- and
- noise attenuation means of attenuating noise using outputs of the noise components extraction means with respect to the noise processing object pixel within the outputs of the simultaneous processing means.
A noise reduction method, comprising:
- simultaneous processing step of allowing to simultaneously processing image signals of a portion containing a noise processing object pixel to be inputted, wherein (a) the image signals are existing in spatially different locations, or (b) the image signals are contained in fields or frames at different times in terms of time;
- filter operation step of performing filter operations with respect to outputs of the simultaneous processing means;
- noise components extraction step of extracting noise components based upon outputs of the filter operation step;
- and
- noise attenuation step of attenuating noise using outputs of the noise components extraction step with respect to the noise processing object pixel within the outputs of the simultaneous processing step.
A program for operating a computer, comprising:
- simultaneous processing means of allowing simultaneously processing image signals of a portion containing a noise processing object pixel to be inputted, wherein (a) the image signals are exiting in spatially different locations, or (b) the image signals are contained in fields or frames at different times in terms of time;
- filter operation means of performing filter operations with respect to outputs of the simultaneous processing means;
- noise components extraction means of extracting noise components based upon outputs of the filter operation means;
- and,
- noise attenuation means of attenuating the noise using outputs of the noise components extraction means with respect to the noise processing object pixel within the outputs of the simultaneous processing means.
A program for a computer to execute, comprising:
- simultaneous processing step of allowing to simultaneously processing image signals of a portion containing a noise processing object pixel to be inputted wherein (a) the image signals are existing in spatially different locations, or (b) the image signals are contained in fields or frames at different times in terms of time;
- filter operation step of performing filter operations with respect to outputs of the simultaneous processing means;
- noise components extraction step of extracting noise components based upon outputs of the filter operation step;
- and
- noise attenuation step of attenuating the noise using outputs of the noise components extraction step with respect to the noise processing object pixel within the outputs of the simultaneous processing step.
Dependencies are inferred from the claim text.