Three-dimensional reconstruction and visualization method and device for stereo image

A stereoscopic image and three-dimensional reconstruction technology, applied in the field of target imaging, can solve the problems of rough terrain imaging results, noise interference, side lobe interference Doppler effect, etc., to improve visualization level and real-time rendering efficiency, remove noise and The effect of clutter

Active Publication Date: 2021-09-17
宁波博海深衡科技有限公司
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AI Technical Summary

Benefits of technology

The technical effect of this patented technology described for creation purposes involves improving the accuracy and quality of 3D images captured with radars used during navigation or surveillance operations. This can be achieved through techniques like volume intersection analysis (VCA) that cluster segments into smaller parts based on their similarity between different objects within them. Additionally, it suggests utilizing specific algorithms such as histogram equalisation filters before performing spectral processing steps to enhance signal clarity while reducing unwanted colors from being displayed. Overall, these improvements improve the overall performance of navigational systems and provide better situational awareness capabilities.

Problems solved by technology

This patented technology solves issues with current methods that use sound waves or radars (ultrasound) alone but it faces challenges like lower signal quality due to strong reverberation caused by water turbulence during acoustic measurements. Additionally, there are limitations on how well two different types of objects may appear together at sea level because they reflect sounds differently depending upon their distance from each other.

Method used

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  • Three-dimensional reconstruction and visualization method and device for stereo image
  • Three-dimensional reconstruction and visualization method and device for stereo image
  • Three-dimensional reconstruction and visualization method and device for stereo image

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, the technical features in each embodiment or a single embodiment provided by the present invention can be combined arbitrarily with each other to form a feasible technical solution. This combination is not restricted by the sequence of steps and / or structural composition mode, but it must be Based on the ability of those skilled in

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Abstract

The invention provides a three-dimensional reconstruction and visualization method and device for a three-dimensional image. The method comprises the following steps: carrying out single-frame denoising on a spatial domain and a pixel range domain of a three-dimensional image, and carrying out clustering segmentation on the denoised image to obtain a classified image; performing interpolation fitting on the classified images to obtain target object smooth images, and obtaining absolute coordinates and point intensity information of each frame of target object smooth image; and performing registration splicing on the multiple frames of target object smooth images according to the absolute coordinates to obtain a first image, and performing three-dimensional visual color rendering on the first image according to the intensity information of the points to complete three-dimensional reconstruction and visualization of the three-dimensional image. According to the method and device, noise points and clutters can be removed, accurate registration splicing of multi-frame data is realized, and the visualization level and real-time rendering efficiency of sonar images are improved.

Description

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Claims

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Application Information

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Owner 宁波博海深衡科技有限公司
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