主动电场线型电极阵列扫描成像方法研究

Research on Imaging Method of Linear Electrode Array Scanning Based on Active Electric Field

水下主动电场幅值法成像的灵感源于弱电鱼主动发射电信号识别周围环境这种生物机制。目前的主动水下成像技术在复杂黑暗的水下环境下仍有一定缺陷,因此一种新的解决方案被提出,即利用水下主动电场原理识别完成短距离目标物体复杂形状的成像。针对此前电极阵列覆盖有限、成像分辨率较小、对较大物体成像时电极数量多造成的成本较高以及缺少对复杂几何特征物体成像的实例等问题,设计了线型电极阵列连续运动扫描并采集数据的幅值成像平台,来对实验物体不同体积大小、不同材质及复杂形状进行成像,并对比结果,最后研究了如何根据横纵向幅值积分斜率曲线的最值点,提取成像图片中的物体位置和面积信息。实验结果证实了基于主动电场原理的线型电极阵列运动扫描幅值成像方法的有效性。与传统的主动电场成像方法相比,该方法不仅降低了硬件成本,还提高了成像的效率和分辨率。此外,该方法为主动电场成像技术的进一步工程化应用提供了一种实用的解决方案,优化了水下物体的成像过程,展示了其在复杂水域环境中的应用潜力。

The inspiration for imaging using the underwater active electric field amplitude method comes from the biological mechanism where weakly electric fish actively emit electrical signals to detect the surrounding environment.Current active underwater imaging techniques still have certain shortcomings in complex,dark underwater environments.Hence,a solution has been proposed,utilizing the principle of the underwater active electric field to identify and image the complex shapes of short-range target objects.To address previous issues such as limited coverage of electrode arrays,low imaging resolution,high costs due to the large number of electrodes needed for imaging larger objects,and the lack of examples for imaging objects with complex geometric features,a platform was designed featuring a linear electrode array that continuously moves,scans,and collects data for amplitude imaging.This platform is used to image experimental objects of various sizes,materials,and complex shapes,and to compare results.It also explores how to extract the position and area information of objects in the imaging pictures by analyzing the extreme points of the amplitude integral slope curves in both horizontal and vertical directions.Experimental results confirm the effectiveness of the amplitude imaging method based on the active electric field principle using a linear electrode array motion scan.Compared to traditional active electric field imaging methods,this proposed method not only significantly reduces hardware costs but also greatly enhances imaging efficiency and resolution.Additionally,this approach provides a practical solution for the further engineering application of active electric field imaging technology.This approach significantly optimizes the imaging process of underwater objects,demonstrating its potential applications in complex aquatic environments.