通过红外海事视频时空切片的轨迹特征提取检测移动船只

IF 3.1 3区 物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION
Wenying Mo , Jihong Pei
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引用次数: 0

摘要

在实际应用场景中,海事红外视频往往包含不同类型的海况场景、天气条件、拍摄时间、拍摄距离等。在这些不同类型的海事视频中,船舶目标在大小、灰度分布和对比度等方面存在很大差异,给船舶目标检测带来了困难。同时,海面的波动、灰度分布和反射光的多样性也会给船舶目标检测带来不可预知的干扰噪声。如何在复杂多变的海上红外视频中准确检测出船舶目标是一项具有挑战性的任务,也是研究的重点。要实现精确的船舶检测,关键在于提取稳健的目标特征,从而有效地将目标从各种背景噪声中区分出来。本文提出了一种基于时空切片目标轨迹特征提取的新型红外视频船舶目标检测算法。该算法对真实目标非常敏感,并具有出色的抗噪能力。该算法的主要创新点是从序列图像的时空切片中提取目标轨迹特征并生成轨迹特征图。我们利用船体目标在时空切片中形成的轨迹纹理来提取目标特征,可以极大地抑制背景噪声。自适应扩张线性模型算法可以有效检测时空切片中的目标轨迹线。此外,我们还充分利用目标轨迹线的梯度来区分不同的目标轨迹像素,并结合梯度一致性提出了自适应迭代扩张目标区域定位算法。在目标分割方面,我们利用目标周围相邻的背景像素计算分割双阈值,从而实现多种灰度分布类型的目标分割。最后,在对比实验中,我们的算法表现出了优越的目标检测性能,特别是从大量高亮海杂波背景中检测船舶时,算法的鲁棒抗噪能力得以凸显。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Moving ships detection via the trajectory feature extraction from spatiotemporal slices of infrared maritime videos
In practical application scenarios, maritime infrared videos often contain different types of sea state scenes, weather conditions, shooting time, shooting distance, etc. In these different types of maritime videos, ship targets have great differences in size, grayscale distribution and contrast, which brings difficulties to ship target detection. At the same time, the diversity of fluctuation, grayscale distribution and reflected light of the sea surface will bring unpredictable interference noise to ship target detection. How to accurately detect ship targets in complex and changeable maritime infrared videos is a challenging task and research focus. The key to achieving accurate ship detection is to extract robust target features that can effectively distinguish targets from all the background noises. In this paper, a novel infrared video ship target detection algorithm based on spatiotemporal slice target trajectory features extraction is proposed. The algorithm is very sensitive to real targets and has excellent anti-noise ability. The main innovation of the algorithm is to extract the target trajectory feature from the spatiotemporal slice of the sequence image and generate the trajectory feature map. We use the trajectory texture formed by the ship target in the spatiotemporal slice to extract the target feature, which can greatly suppress the background noise. The adaptive dilation linear model algorithm can effectively detect the target trajectory line in the spatiotemporal slice. In addition, we also make full use of the gradient of the target trajectory line to distinguish different target trajectory pixels, and propose an adaptive iterative dilation target region localization algorithm combined with gradient consistency. For object segmentation, we calculate the segmentation double-threshold using the adjacent surrounding background pixels of the target, so as to achieve target segmentation of multiple grayscale distribution types. Finally, in the comparison experiment, our algorithm shows superior target detection performance, especially when detecting ships from a large number of highlighted sea clutter background, the robust anti-noise ability of the algorithm can be highlighted.
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来源期刊
CiteScore
5.70
自引率
12.10%
发文量
400
审稿时长
67 days
期刊介绍: The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.
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