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Image recognition method and device for rectangular object

A technology of object image and image recognition, applied in the field of image processing

Active Publication Date: 2016-04-20
XIAOMI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the angle of the picture taken, most of the rectangular objects in reality have a certain angle and are not an accurate rectangle. There is a certain perspective transformation, and it is an arbitrary quadrilateral that is closer to a rectangle.

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  • Image recognition method and device for rectangular object
  • Image recognition method and device for rectangular object
  • Image recognition method and device for rectangular object

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Embodiment Construction

[0108] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0109] The technical solution provided by the embodiments of the present disclosure relates to a terminal, and is mainly used for identifying rectangular objects such as bank card numbers, ID numbers, train tickets, and movie tickets. The method of detecting rectangular objects through the real-time viewing screen of the camera can accurately identify the image of the rectangular objec...

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Abstract

The invention provides an image recognition method and a device for a rectangular object. The method comprises the steps of acquiring the image of a specified area, wherein the specified area includes the image of a rectangular object and the image of the rectangular object is obtained through shooting a to-be-detected rectangular object; determining the outer boundary and the preset inner boundary of the image of the specified area, wherein the preset inner boundary is located inside the image of the rectangular object; according to the outer boundary and the preset inner boundary of the image of the specified area, determining the boundary of the image of the rectangular object; according to the boundary of the image of the rectangular object, recognizing the information on the rectangular object. Based on the technical scheme of the invention, the boundary of the image of the rectangular object can be determined more accurately and more quickly. Therefore, the information on the rectangular object can be accurately recognized.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, in particular to an image recognition method and device for a rectangular object. Background technique [0002] At present, in some image recognition scenarios, the recognition object is located near a fixed position in a rectangular card, such as a bank card or an ID card. If the rectangular card can be detected in advance, the position of the recognized object can be accurately obtained. Because the size of the rectangular card itself is much larger than the recognition object, when using the mobile phone camera to recognize the object on the card, it is easier for the user to align the viewfinder screen of the camera with the card than to align the recognition object itself, and the experience is much better. The result of the detection of the rectangular card directly affects the recognition of the object to be recognized later. However, most of the rectangular objects in ...

Claims

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Application Information

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IPC IPC(8): G06K9/20G06K9/34
CPCG06V10/22G06V30/153G06V10/267G06V30/10
Inventor 秦秋平陈志军王百超
Owner XIAOMI INC