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Information processing device, information processing method, computer-readable recording medium, and inspection system

An information processing device and preprocessing technology, applied in image data processing, character and pattern recognition, image analysis, etc., can solve problems such as failure to detect local anomalies, inability to adequately detect abnormalities in inspection targets, and achieve efficient detection.

Inactive Publication Date: 2017-07-07
RICOH KK
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  • Description
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  • Application Information

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Problems solved by technology

[0004] However, the prior art has a disadvantage in that abnormalities cannot be sufficiently detected when there is a positioning error of the inspection target and there is a slight change in the shape of the inspection target
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  • Information processing device, information processing method, computer-readable recording medium, and inspection system
  • Information processing device, information processing method, computer-readable recording medium, and inspection system
  • Information processing device, information processing method, computer-readable recording medium, and inspection system

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[0023] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0024] As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0025] In describing the preferred embodiments illustrated in the figures, specific terminology may be employed for the sake of clarity. However, the disclosure of this patent specification is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents that have the same function, operate in a similar manner, and achieve a similar result.

[0026] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0027] The present invention is described below by way of examples; however, the present invention is not limited by t...

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Abstract

An information processing device inspects a target image that contains an image of an inspection target. The device includes a pre-processor (702), a first calculator (703), a second calculator (703), and a determiner (704). The pre-processor (702) is configured to perform preprocessing for comparing the target image with a reference image or a plurality of reference images. The first calculator (703) is configured to define, in the target image, a region of interest (ROI) and surrounding regions that are adjacent to the ROI, and calculate a feature value of the ROI. The second calculator (703) is configured to calculate an outlier from comparison with feature values of images corresponding to the ROI and the surrounding regions in the reference images. The outlier numerically indicates singularity of an image at the ROI. The determiner (704) is configured to provide, based on the outlier, an indicator to be used for the inspection.

Description

technical field [0001] The present invention relates to an information processing device, an information processing method and an inspection system. Background technique [0002] Techniques for detecting distinguishing points (pixels) and regions within an image, such as detection of anomalies by appearance inspection of products or using surveillance cameras, are known. In the prior art for detecting distinguishing points (pixels) and regions within an image, a normal set of reference images is prepared in advance. Usually a step after this is to calculate the difference between each pixel in the inspection target image and the reference image and the corresponding pixel's feature value, such as the brightness value, to identify the change between the images. [0003] For example, Japanese Unexamined Patent Application Publication No. 2005-265661 proposes image inspection configured to statistically determine a normal range of luminance values ​​in an inspection target ima...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06K9/32G06K9/46
CPCG06T7/0002G06T2207/20081G06V10/25G06V10/44
Inventor 田中拓哉笠原亮介
Owner RICOH KK
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