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An Improved Sea Antenna Detection and Evaluation Method

A sea-antenna detection and sea-antenna technology, applied in image analysis, image enhancement, instruments, etc., can solve the problem that the pre-training model cannot achieve good results, and achieve evaluation accuracy and robustness, accuracy and robustness sexual effect

Active Publication Date: 2022-03-18
FUDAN UNIV
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Problems solved by technology

In actual application scenarios, factors such as light intensity, bad weather, ships and floating sea surfaces are unpredictable, which also makes the pre-training model unable to achieve good results

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  • An Improved Sea Antenna Detection and Evaluation Method
  • An Improved Sea Antenna Detection and Evaluation Method
  • An Improved Sea Antenna Detection and Evaluation Method

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Embodiment Construction

[0057] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0058] refer to figure 1 , the sea antenna detection and evaluation method of the present invention, the specific steps are as follows.

[0059] (1) According to the characteristics of the noise distribution in the sea antenna image, first perform image preprocessing operations:

[0060] (11) Image color space conversion: convert each sea antenna image read in from the original RGB color space representation to the HSV color space representation, so as to be closer to human visual cognition;

[0061] (12) Image smoothing based on the L0 norm: smooth the sea-antenna image by removing the small gradient in the image and enhancing the saliency of the image edge, and remove the discrete noise in the image, such as figure 2 , image 3 As shown, in the three scenarios, the discrete noise points in the smoothed image are significantly reduced, an...

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Abstract

The invention belongs to the technical field of computer image processing, in particular to an improved method for detecting and evaluating sea antennae. The steps of the present invention are: according to the characteristics of the noise distribution in the sea antenna image, image preprocessing operations are performed, including: image color space conversion, image smoothing, image illumination enhancement, etc.; brightness information is extracted to obtain a grayscale image; according to the sea antenna According to the distribution characteristics of the sky area and ocean area in the image, the image is segmented according to the diagonal direction of the image; the brightness threshold of the sky area and the ocean area, and the brightness threshold of the area around the sea antenna; the pixel points of the area around the sea antenna are obtained; After a linear fitting operation, the final sea antenna position is obtained and plotted; based on the predicted and real sea antenna positions in the image, two original indicators are used for evaluation. The method of the invention can detect the position of the sea antenna stably, accurately and efficiently in strong illumination scenes, low contrast scenes, complex scenes and conventional scenes.

Description

technical field [0001] The invention belongs to the technical field of computer image processing, and in particular relates to a sea antenna detection and evaluation method. Background technique [0002] The sea antenna detection method in real scenes has many application significances, and is an important topic to assist in the completion of maritime vision tasks. First, when conducting long-range detection missions at sea, most detection targets will appear near the sea antenna area. Therefore, sea-antenna detection can be used to narrow the range of target detection and improve the detection speed and accuracy of the algorithm. Second, images containing sea antennas can generally be divided into three regions: the sky region, the sea antenna region, and the ocean region. Therefore, using the sea antennae detection method, image segmentation is performed according to the position of the sea antennae in the image. In this way, different detection strategies can be applie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/136G06T7/13G06T7/90G06T5/00
CPCG06T7/0002G06T7/11G06T7/136G06T7/13G06T7/90G06T5/002G06T2207/10032G06T2207/30181
Inventor 路红焦健张文强张睿
Owner FUDAN UNIV
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