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Ship target tracking method and system, computer equipment and storage medium

A target tracking and ship technology, applied in the field of target tracking, can solve the problems of environmental noise sensitivity, many interference factors, ship loss processing ability, etc., and achieve the effect of high matching accuracy

Active Publication Date: 2020-10-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following problems exist in the use of binocular ranging tracking for outdoor scenes: A. There are many interference factors in outdoor work, such as wind, human factors, etc., which may cause the position of the camera to change, making the original calibration camera external parameters deviate; B. Ships Generally farther away from the camera, binocular ranging increases with the distance, the higher the deviation
[0006] Therefore, there are still many deficiencies in the above-mentioned existing ship target tracking algorithm: 1) The ship target detection adopts the method of background frame difference, which is sensitive to environmental noise. Ineffective; 2) The tracking algorithm used only uses the physical information of the ship, and only uses the shallow pixel information of the ship target to calculate the center of mass of the ship to achieve tracking; When a ship is detected it considers it to be a new ship

Method used

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  • Ship target tracking method and system, computer equipment and storage medium
  • Ship target tracking method and system, computer equipment and storage medium
  • Ship target tracking method and system, computer equipment and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0073] like figure 1 As shown, the present embodiment provides a method for tracking a ship target, the method comprising the following steps:

[0074] S101. Use a depth target detector to detect ship targets in the first frame of the video to obtain n first ship targets.

[0075] In this embodiment, the YOLO network is used as the deep target detector. Specifically, given a video of multiple ships sailing on the water surface, the deep target detector is used to detect the ship target in the first frame of the video, and n first ship targets are obtained. for

[0076] like figure 2 As shown, in order to design a ship depth feature network to extract the depth features of the ship target, this embodiment also includes before step S101:

[0077] S201. Acquire multiple images of ships.

[0078] Specifically, the image of the ship can be acquired through acquisition, for example, by taking the image of the ship through a camera, or can be obtained from a database search, f...

Embodiment 2

[0124] Such as Figure 7 As shown, the present embodiment provides a ship target tracking system, the system includes a first target detection module 701, a first feature extraction module 702, a setting module 703, a second target detection module 704, a second feature extraction module 705, Matching module 706 and return module 707, the specific functions of each module are as follows:

[0125] The first target detection module 701 is configured to use a depth target detector to detect the ship target in the first frame of the video to obtain n first ship targets.

[0126] The first feature extraction module 702 is configured to extract the first ship deep feature through the trained ship deep feature network according to the first ship target, and establish a tracking list for the first ship target.

[0127] The setting module 703 is configured to set the initial speed of the first ship target in the tracking list to 0, mark the missing field as false, and mark the missTim...

Embodiment 3

[0152] This embodiment provides a computer device, the computer device is a computer, such as Figure 10 As shown, it includes a processor 1002 connected through a system bus 1001, a memory, an input device 1003, a display 1004 and a network interface 1005. The processor is used to provide calculation and control capabilities. The memory includes a non-volatile storage medium 1006 and internal Memory 1007, the non-volatile storage medium 1006 stores an operating system, computer programs and databases, the internal memory 1007 provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium, and the processor 1002 executes memory storage During computer program, realize the ship target tracking method of above-mentioned embodiment 1, as follows:

[0153] Utilize depth target detector to detect the ship target of video first frame, obtain n first ship targets;

[0154] According to the first ship target, the first ship ...

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Abstract

The invention discloses a ship target tracking method and system, computer equipment and a storage medium. The method comprises the steps: detecting a ship target of a first frame of a video through adepth target detector, and obtaining n first ship targets; according to the first ship target, extracting a first ship depth feature through a trained ship depth feature network, and establishing a tracking chain table for the first ship target; detecting the ship target of the current frame of the video by using a depth target detector to obtain m second ship targets; according to a second shiptarget, extracting a second ship depth feature through the trained ship depth feature network, and establishing a first target chain table for the second ship target; and for the first ship target inthe tracking linked list and the second ship target in the first target linked list, sequentially performing feature distance and physical distance matching to update the tracking linked list. According to the invention, the problem that a ship is mistakenly regarded as a new ship after being lost can be prevented, and the occurrence and disappearance of the ship can be correctly judged.

Description

technical field [0001] The invention relates to a ship target tracking method, system, computer equipment and storage medium, belonging to the technical field of target tracking. Background technique [0002] Ship multi-target video tracking refers to deriving the time-space relationship based on the ship coordinates of each frame returned by the ship depth target detector under a given ship video, and calculating the navigation trajectory of each ship. This technology is helpful for the supervision of the maritime department, has a retrospective effect on safety accidents, and can provide reliable video proof. In maritime data statistics, it can provide rich ship navigation data, provide high-frequency location of ships, and allow security staff to monitor places where accidents frequently occur in a targeted manner. In important water source protection areas, it can effectively track and predict the trajectory of ships, and promptly remind ships to leave the protection ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/41G06V20/46G06V20/48G06V20/52
Inventor 冼允廷陆璐
Owner SOUTH CHINA UNIV OF TECH
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