Method for detecting spatial point target space-base on basis of track cataloguing model

一种探测方法、空间点的技术，应用在目标探测领域，达到高稳定性、快速探测识别、扩大搜索范围的效果

Inactive Publication Date: 2011-07-06
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] None of the above detection methods can well solve the requirement of real-time detection and long-term stable tracking of fast maneuvering multi-targets in the complex starry sky background without any initialization conditions.

Method used

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and example the present invention is described in further detail.

[0031] Using the present invention to detect, identify and track moving space point targets in complex starry background, the flow chart is as follows figure 1 As shown, the specific steps are:

[0032] 1) First, perform bad pixel removal, distortion correction and image filtering preprocessing on the collected real-time image data;

[0033] 2) Next, determine the adaptive threshold value on the preprocessed image data, the calculation formula of the threshold value D is:

[0034] D=a×(M+2)

[0035] Among them, M is the average gray value of the entire image, a constant, and the selection range is between 1.8 and 2.4;

[0036] 3) Carry out threshold segmentation on the collected image, the threshold segmentation formula is:

[0037] if f ( x ...

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Abstract

The invention discloses a method for detecting a spatial point target space-base on basis of a track cataloguing model. The method is used for performing threshold value partition and communicated domain calculation on a pretreated image, performing the track cataloguing on each communicated domain, and identifying and tracking the target according to the motion character and judgment probabilityof each track. The method is suitable for the visible-light spatial point target space-base detection in large view field. The searching scope is widened and the purpose of detecting as early as possible and alarming as quick as possible is achieved. The method can be used for detecting a plurality of targets in different motion modes at the same time and identifying and tracking the targets. Themethod can be used for quickly detecting, identifying and stably tracking the spatial point target.

Description

technical field [0001] The invention relates to target detection technology, in particular to a space-based detection method for a space point target moving under a complex starry sky background by using an orbit catalog model, which is mainly used for detection, identification, tracking and measurement of space targets. Background technique [0002] The space-based space target detection system refers to the processing of the observation image sequence acquired by the optical sensor, from which information such as the position and brightness of the target and background stars is extracted, and the space target is positioned, tracked, cataloged and maintained, and identified and classified. [0003] Qi Changsong proposed a concept of minimum distance feature between star points, constructing local minimum distance feature, and using recursive search method to detect moving objects according to the relative positional relationship between point groups. See Qi Changsong et al....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/10
Inventor 崔文楠张涛王磊凌丽童广辉杨波
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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