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Method for automatically detecting frost formation

A technology for automatic detection and frost formation, which is applied to the intersection of image processing and meteorological observation, and can solve the problems of high wind speed, unfavorable frost, and unfavorable water vapor condensation and condensation.

Inactive Publication Date: 2011-05-11
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the wind speed is too high, it is not conducive to the accumulation and desublimation of water vapor; if the temperature is too high and the humidity is too high, a large amount of dew will be formed first, and the condensation process of dew will be accompanied by the release of condensation latent heat, which will partially compensate for the loss due to radiation. Heat, not conducive to frost formation

Method used

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  • Method for automatically detecting frost formation
  • Method for automatically detecting frost formation
  • Method for automatically detecting frost formation

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The slide glass is a rectangular piece of glass, and the outdoor slide image sequence is to place the slide slide outdoors very close to the ground, and place the image sequence captured by the camera above the slide slide. The camera takes a frame of grayscale image every fixed time interval (for example, 10 minutes), and the camera will continue to shoot after it is started, so that we can detect the frosting situation in real time. In this embodiment, an image sequence of slides including 3 slides is taken as an example.

[0035] The following instructions will assume that we have acquired an outdoor slide image sequence, with image sequences acquired at 10-minute intervals.

[0036] The steps of the present invention are described in detail below:

[0037] (1) For outdoor slide image sequence I i , i is a positive intege...

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Abstract

The invention discloses a method for automatically detecting frost formation. In the method, an image sequence Ii of a plurality of glass slides, which are arranged outdoors, is processed so that frost formation and the time of the frost formation can be detected, wherein the image sequence Ii consists of glass slide images which are acquired at regular intervals; each glass slide has a quadrangular shape; and i is a positive integer and represents the serial number of image frame number. By the method, the frost formation phenomenon and the time of the frost formation can be automatically detected; and during detection, manual intervention is not required except for initial manual mark, so the automation degree is high and different types of frost formation can be detected well.

Description

technical field [0001] The invention belongs to the cross technical field of image processing and meteorological observation, and in particular relates to a method for automatically detecting frosting based on image processing. Background technique [0002] Frost observation is an important part of surface meteorological observation. In the "Specifications for Surface Meteorological Observation" (standard number QX / T 46-2007), the phenomenon of frosting is defined as: frost is white and crisp ice crystals formed by the condensation of water vapor on the ground and near-surface objects; Or ice beads frozen from dew. [0003] Frosting needs to be formed under certain wind speed, humidity, and temperature conditions. If the wind speed is too high, it is not conducive to the accumulation and desublimation of water vapor; if the temperature is too high and the humidity is too high, a large amount of dew will be formed first, and the condensation process of dew will be accompani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/68G06T7/00G01W1/00
Inventor 曹治国卓问朱磊马舒庆
Owner HUAZHONG UNIV OF SCI & TECH