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Sky line detection method and device

A water antenna and horizontal plane technology, applied in the field of image processing, can solve the problem that the water antenna cannot be detected correctly and accurately

Active Publication Date: 2017-04-05
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0005] The embodiment of the present invention provides a water antenna detection method and device to solve the problem that the existing water antenna detection method cannot detect the water antenna correctly and accurately

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  • Sky line detection method and device
  • Sky line detection method and device

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Embodiment Construction

[0087] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0088] figure 1 It is a schematic flow chart of a water antenna detection method provided by an embodiment of the present disclosure. The premise of this method is that two cameras simultaneously capture images of the target water area, and the two cameras are respectively referred to as the first camera and the second camera. like fi...

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Abstract

The embodiment of the invention discloses a sky line detection method and device. Based on obtained images shot by a first camera and a second camera at the same moment shooting target water area, the spatial position of the horizontal plane of the target water area in a preset three-dimensional coordinate system is obtained so as to obtain the projection line of the horizontal plane in the image through adoption of the spatial position of the horizontal plane and determine the projection line as the sky line of the target water area. The detection method and device disclosed by the embodiment of the invention can accurately detect the sky line when the water surface color textures of the target water area are changed or the illumination of the target water area is changed. Besides, there is not real sky line in the shooting image, or when the sky line is shielded, the position of the sky line in the image can be accurately detected so as to effectively improve the adaptability of the detection method and device.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a water antenna detection method and device. Background technique [0002] The water antenna is the dividing line between the water and the sky in the image captured by the camera or video camera on the water area, which is of great significance to guide the safe navigation of the ship. For example, the water antenna in the water surface image can detect obstacles on the water surface within the range of the water surface image, and, according to the position of the water surface antenna in the water surface image and the position of the obstacle in the water surface image, the spatial coordinates of the obstacle are calculated The three-dimensional coordinates in the system can be used to warn ships to avoid in advance. [0003] At present, the existing water antenna detection methods are mainly based on monocular images for water antenna detection. The detection metho...

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Application Information

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IPC IPC(8): G06T7/00G06T7/70
Inventor 胡庭波吴涛安向京
Owner NAT UNIV OF DEFENSE TECH
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