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Method and device for absorbing line segments in images, method and device for constructing polygons

A technology of polygons in images, applied in the field of image recognition, which can solve problems such as messy background of photographs, difficult identification of vertex positions, and inability to construct quadrilateral borders, etc.

Active Publication Date: 2018-10-09
SHANGHAI HEHE INFORMATION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, it may be difficult to identify the position of the vertices due to the messy background of the photo, or the vertices of the quadrilateral to be recognized have rounded corners
This makes the vertex adsorption function unavailable, and users cannot construct quadrilateral borders through vertices

Method used

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  • Method and device for absorbing line segments in images, method and device for constructing polygons
  • Method and device for absorbing line segments in images, method and device for constructing polygons
  • Method and device for absorbing line segments in images, method and device for constructing polygons

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Embodiment Construction

[0019] The invention discloses a method for absorbing a line segment in an image, which includes a preset line segment, dragging the line segment by selecting the first part of the line segment, and dragging the second part of the line segment to a corresponding line segment in the image When the second position is near, the preset line segment is set to coincide with the certain line segment, and the nearness means that the distance between the two complies with the preset rules during the process of approaching each other. In this embodiment, in the process of dragging the preset line segment, once the second part of the line segment is dragged to the vicinity of the corresponding second part of a certain line segment in the image, the preset line segment will be absorbed to the certain line segment. on the segment, that is coincident with the certain line segment.

[0020] In another disclosed embodiment of the present invention, a method for attracting a line segment in an...

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PUM

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Abstract

A method for snapping to a line segment in an image, the method comprising: presetting a line segment and dragging the line segment by choosing a first part of the line segment; when a second part of the line segment is dragged to be near a corresponding second part of a line segment in an image, setting the preset line segment to coincide with the line segment in the image; the term "near" means that the distance between two parts complies with a preset rule. By using the above technical solution, a user can use the line segments in an image to define frames of a polygon, so as to facilitate further image processing.

Description

technical field [0001] The invention relates to an image recognition technology, in particular to a method for absorbing line segments in an image. The invention also relates to an image recognition device, especially a device for absorbing line segments in an image. The present invention also relates to an image processing method, in particular to a method for constructing polygons in an image. The present invention also relates to an image processing device, in particular to a device for constructing polygons in an image. Background technique [0002] At present, more and more functions for processing and extracting information from photographed pictures appear on commercial devices such as scanners and commercial mobile phones. These functions generally fall into two categories. [0003] 1) Correction and enhancement of whiteboard image [0004] Whiteboard images are images taken of conference whiteboards, bulletin boards, and other text-like rectangular objects. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20G06F3/0486
CPCG06T11/00G06F3/04845G06F3/04883G06T7/12G06T2207/20104
Inventor 龙腾王跃镇立新
Owner SHANGHAI HEHE INFORMATION TECH DEV