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Sea clutter image ridgelet domain wave parameter checking method

A ridge wave transformation and wave parameter technology, applied in the field of wave parameter detection, can solve problems such as the limitation of application effect, and achieve the effect of convenient digital image processing and obvious application effect.

Inactive Publication Date: 2008-01-16
STATE OCEAN TECH CENT
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Problems solved by technology

However, for more complex wavy texture images, the applied effect has limitations

Method used

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  • Sea clutter image ridgelet domain wave parameter checking method

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Embodiment Construction

[0046] The present invention is described in further detail now in conjunction with accompanying drawing.

[0047] Fig. 1 shows a flowchart of a method for detecting wave parameters in the ridgelet transform domain of a sea clutter image according to the present invention.

[0048] As shown in the figure, the wave parameter detection method in the ridgelet transform domain of the sea clutter image includes the following steps:

[0049] 1. Preprocessing sea clutter images

[0050] Input the sea clutter image S to the computer 11 , select the image area, cut out the area from the original image, and get the preprocessed image S 12 .

[0051] 2. Perform the ridgelet transform on the sea clutter image

[0052] Clip the largest available sea clutter circular image S within the range of the preprocessed image 21 .

[0053] Perform the ridgelet transform S on the clipped sea clutter circular image 22 , through the ridgelet transform, the ridgelet transform coefficients of the ...

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Abstract

The invention discloses a method for detecting wave parameters by carrying out ridge wave transformation on sea noise wave image. The method comprises pre-treating a sea noise wave image, carrying out ridge wave transformation on the sea noise wave image, detecting non-time sequence sea noise wave image, carrying out ridge wave transformation on time sequence sea noise wave image and detecting to obtain wave parameters, and outputting. The outputted wave parameters include wave direction, wave velocity, wave length, period, and wave height. The inventive method for detecting wave parameters in ridge wave transformation domain of sea noise wave can carry out more convenient digital image processing to the sea noise wave image, so as to detect more wave parameters. The invention has distinct application effect to the sea noise wave image with complex wave texture.

Description

technical field [0001] The invention relates to a method for detecting ocean wave parameters, in particular to a method for detecting wave parameters in the Ridgelet transform domain using sea clutter images. Background technique [0002] Ocean waves are one of the important physical phenomena in the ocean. Wave parameter detection is very important for ocean forecasting, marine transportation, ocean engineering and coastal engineering design, coastal environmental protection, and marine scientific research. [0003] The traditional ocean wave parameter detection method is to detect the ocean wave parameters by measuring the movement of seawater particles and the water level change of the sea surface through the wave measuring sensor directly placed in the seawater. The traditional detection method of ocean wave parameters adopts a single-point measurement method, and the measurement range is small. Even if the measuring instruments are deployed at multiple points, the measu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C13/00G06T7/00
Inventor 张锁平
Owner STATE OCEAN TECH CENT
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