Image processing apparatus, image processing method, and distortion correcting method

An image processing device and distortion correction technology, applied in image data processing, processor architecture/configuration, image communication, etc.

Inactive Publication Date: 2009-10-21
OLYMPUS CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0036] In this way, by providing a distortion correction range calculation unit for calculating the range of the input image for distortion correction processing, the area corresponding to a part or all of the output range of the output image (that is, the distortion-corrected image) is calculated in the input image (that is, the captured image). image), so that the corrected image obtained by distortion correction can be output with no more and no less for the output range corresponding to the output, and the corrected image will not overflow or be insufficient relative to the output range

Method used

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  • Image processing apparatus, image processing method, and distortion correcting method
  • Image processing apparatus, image processing method, and distortion correcting method
  • Image processing apparatus, image processing method, and distortion correcting method

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Embodiment Construction

[0098] Embodiments of the invention will be described with reference to the drawings.

[0099] figure 1 It is a block diagram showing the overall configuration of the image processing device according to the first embodiment of the present invention.

[0100] exist figure 1 In the image processing device of the present invention, under the control of the CPU 4 that controls each part connected to the bus 3, the image pickup signal from the CCD 1 is subjected to pixel defect processing and A / D conversion in the preprocessing circuit 2, and the obtained Image data is temporarily stored in the frame memory 5 via the bus 3 . The frame memory 5 is constituted by SDRAM or the like, and is a memory for storing data before image processing and data after image processing. Then, the image data read out from the frame memory 5 is input to the first data sequence conversion unit 6 through the bus 3 . The first data sequence conversion unit 6 is as follows Figure 7 As explained ab...

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Abstract

An image processing device having a distortion correction processing section (8), the image processing apparatus having a distortion correction range calculation section (12) for calculating an input required for the distortion correction processing section (8) to perform distortion correction processing image range. In this way, the corrected image (output image) obtained by distortion correction can be output without excess or deficiency for the image output range, and distortion correction processing that effectively utilizes input (photographed) image data as source data can be performed, and pincushion distortion can be eliminated. , Barrel distortion and string distortion etc. for effective distortion correction processing.

Description

technical field [0001] The present invention mainly relates to an image processing device and an image processing method for use in electronic imaging devices such as digital cameras, and more particularly to realizing a distortion correction function without increasing the circuit scale and the amount of data transfer, and performing a distortion correction function in a small area such as a block An image processing device, an image processing method, and a distortion correction method capable of calculating the spatial position of a small area in the case of distortion correction processing in units of lines). Background technique [0002] Regardless of whether it is a digital camera or a silver salt camera, distortion aberrations generally appear in the optical system of the camera. In addition, most of the currently sold cameras are models capable of optical zoom, and in this case, the state of the distortion aberration changes from the wide-angle end to the telephoto e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/00H04N1/387H04N5/232G09G5/36G06T1/20
Inventor 日暮正树古川英明上野晃
Owner OLYMPUS CORP
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