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Pixel point extraction method, target information collection method and tube push bench control system

An extraction method and pixel point technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve problems that affect the accurate judgment of the pipe jacking machine head, poor signal transmission environment, and easy frame loss of light target images, etc., to achieve Reduce the amount of data transmission, realize coordinate correction, and ensure the effect of accurate acquisition

Active Publication Date: 2021-06-04
HEFEI UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0004]However, the pipe jacking machine control system is usually installed on the ground or even in the remote command office. The pipe jacking machine is constructed underground, the signal transmission environment is poor, and the light target image is being transmitted It is easy to drop frames during the process, which affects the accurate judgment of the pipe jacking machine head

Method used

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  • Pixel point extraction method, target information collection method and tube push bench control system
  • Pixel point extraction method, target information collection method and tube push bench control system
  • Pixel point extraction method, target information collection method and tube push bench control system

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Embodiment Construction

[0043] A pixel point extraction method proposed in this embodiment includes the following steps.

[0044] S100. Acquire a target image, perform binarization processing on the target image to obtain a binarized image, and determine a pixel point to be processed in the binarized image.

[0045] Specifically, in this step, the constraint conditions for extracting the processing object are set in combination with the hue, saturation and brightness, and the target image is binarized according to the constraints to obtain a binarized image, so as to extract pixels satisfying the constraints point as the processing object. When specifically setting constraint conditions, threshold intervals may be set for hue, saturation, and brightness, respectively, so as to obtain pixels whose hue, saturation, and brightness are respectively within the corresponding threshold intervals.

[0046] For example, during specific implementation, set the constraints as: {(a∈A0)∩(b∈B0)∩(c∈C0)}; where, ∩ ...

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Abstract

The invention discloses a pixel point extraction method. The method comprises the steps: obtaining a target image, carrying out the binarization processing of the target image, obtaining a binarized image, and determining a pixel point as a processing object in the binarized image; and after expansion processing is carried out on each processing object, recognition regions formed by continuous pixel points are determined on the binarized image, and a central point of each recognition region is determined as a target pixel point corresponding to the recognition region. According to the method, firstly, binarization processing is carried out on pixel points in combination with hue, saturation and brightness, and amplification of the difference between the pixel points meeting constraint conditions and the pixel points outside the constraint condition range is achieved. Then, expansion processing is carried out on the processed object, equivalently, same-proportion amplification processing is carried out on image features needing to be extracted in an original target image, and effective extraction of the image features is guaranteed;.

Description

technical field [0001] The invention relates to the fields of information transmission and pipe jacking machine control, in particular to a pixel point extraction method, a target information collection method and a pipe jacking machine control system. Background technique [0002] During the construction process of the pipe jacking machine, due to the excessive excavation depth or other factors, the machine head will deviate, which will affect the construction safety. In order to ensure the normal construction of the pipe jacking machine, it is necessary to measure the attitude of the pipe jacking machine in real time and correct the deviation of the head of the pipe jacking machine in time. [0003] At present, the commonly used measurement method is to set a light target on the head of the pipe jacking machine, and then realize real-time monitoring of the drill bit of the pipe jacking machine by collecting and analyzing the image of the light target. For example, "CN1042...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/30G06T5/40G06T7/60
CPCG06T5/30G06T5/40G06T7/60G06T2207/10004
Inventor 郑航丁煦王杨焦倩倩朱强翟华
Owner HEFEI UNIV OF TECH
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