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US 7,031,535 B2Granted
Image processing apparatus capable of interpolating error data
AssigneeCanon Kabushiki Kaisha
InventorToshinori Yamamoto
Life of this patent
Estimating the term…
Abstract
This invention provides an image processing apparatus which receives an image signal divided into a plurality of different subband components, detects an error in low-frequency subband component data within the image signal of one picture, and interpolates remaining frequency subband component data other than the low-frequency subband component of the picture in accordance with the error detection result.
Claims28
An image processing apparatus comprising:
- input means for inputting an image signal divided into a plurality of different subband components;
- error detection means for detecting an error in low-frequency subband component data of the image signal of one picture;
- and
- interpolation means for interpolating remaining frequency subband component data other than the low-frequency subband component of said one picture in accordance with an error detection result of said error detection means.
1 more element
An image processing apparatus comprising:
- input means for inputting an image signal divided into a plurality of different subband components;
- first error detection means for detecting an error in remaining frequency subband component data other than low-frequency subband component data of the image signal of one picture;
- selection means for selecting and outputting one of said remaining frequency subband component data and a predetermined value in accordance with an output from said first error detection means;
- second error detection means for detecting an error in the low-frequency subband component data of said one picture;
- and
- interpolation means for interpolating the low-frequency subband component data in accordance with detection of the error by said second error detection means, and transforming an output from said selection means into remaining data.
3 more elements
An image processing method comprising:
- an input step of inputting an image signal divided into a plurality of different subband components;
- an error detection step of detecting an error in low-frequency subband component data of the image signal of one picture;
- and
- an interpolation step of interpolating remaining frequency subband component data other than the low-frequency subband component of said one picture in accordance with an error detection result in said error detection step.
1 more element
An image processing method comprising:
- an input step of inputting an image signal divided into a plurality of different subband components;
- a first error detection step of detecting an error in remaining frequency subband component data other than low-frequency subband component data of the image signal of one picture;
- a selection step of selecting and outputting one of said remaining frequency subband component data and a predetermined value in accordance with an output of said first error detection step;
- a second error detection step of detecting an error in the low-frequency subband component data of said one picture;
- and
- an interpolation step of interpolating the low-frequency subband component data in accordance with detection of the error in said second error detection step, and transforming an output of said selection step into remaining data.
3 more elements
Dependencies are inferred from the claim text.