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scanning device

A technology of scanning device and lighting part, which is applied in the direction of TV, color TV parts, electrical components, etc., and can solve problems such as uneven illuminance and areas where desired illuminance cannot be obtained

Active Publication Date: 2017-05-10
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the arrangement of the lighting device, the irradiated illumination light may have uneven illuminance, and there may be an area where the desired illuminance cannot be obtained.

Method used

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Embodiment Construction

[0028] The scanning device in this embodiment adopts a general object recognition (generic object recognition: general object recognition) technology. General object recognition is a technique for recognizing the type of the object (target object) based on the image data captured by a camera. The computer extracts, from the image data, appearance feature quantities of items included in the image. Then, the computer checks the feature amount data of the reference image registered in the recognition lexicon file, calculates the degree of similarity, and recognizes the type of the article based on the degree of similarity. Techniques for recognizing items contained in images are described in the following documents.

[0029] Keiji Yanai, "Current Status and Future of General Object Recognition", Journal of Information Processing Society, Vol.48, No.SIG16 [August 10, 2012], Internet (Keiji Yanai, "Current Status and Future of General Object Recognition", Journal of the Society f...

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Abstract

The invention discloses a scanning device capable of ensuring illumination in a reading area while removing stray light. The scanning device includes: a housing with an imaging window on the front; an imaging unit disposed in the housing Inside, for imaging an object located in a reading area outside the imaging window formed in the housing; a plurality of illuminating parts are provided in the housing to irradiate illumination light to the reading area; and a shielding portion shielding a portion of stray light reflected inside the imaging window and incident on the imaging portion of the illumination light irradiated from each of the plurality of illuminating portions, wherein the plurality of illuminating portions Each of the illuminating sections has a complementary relationship in the illuminance-reduced portion in the reading area caused by the shading of the shading section.

Description

[0001] This application claims the priority of the Japanese application with the filing date of March 4, 2013 and the application number JP2013-042170, and cites the content of the above application. technical field [0002] The invention relates to a scanning device. Background technique [0003] In recent years, there has been a scanning device that uses an imaging element such as a CCD (Charge Coupled Device) sensor to extract the feature value of the object from the image data of the object such as a commodity, and extracts the feature value of the object by comparing with the pre-prepared The feature quantities for verification are compared to identify the object. In such a scanner, generally, an illumination device is used to illuminate a reading area of ​​an imaging element to ensure illuminance. However, when an illuminating device is used, since stray light of reflected illuminating light is incident on the imaging element, it is necessary to provide an illuminatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/04H04N1/028H04N5/225
CPCH04N23/56H04N23/62H04N7/18
Inventor 矢嶋信介
Owner TOSHIBA TEC KK