Dual-mode tracking detection fusion system and use method thereof

Abstract

The invention relates to the technical field of photoelectricity, in particular to a dual-mode tracking detection fusion system and a use method thereof. The dual-mode tracking detection fusion system comprises a first detector and a second detector, the optical axis position of the first detector is fixed, the second detector is connected with a swing scanning mirror, and the swing scanning mirror is used for controlling the optical axis of the second detector to swing. When the optical axis of the first detector is parallel to the optical axis of the second detector, the distance between the optical axes of the first detector and the second detector is a preset distance; the preset distance is a distance enabling an image of a tracking target to be located at different positions in the view field of the first detector and the view field of the second detector. The embodiment of the invention provides a dual-mode tracking detection fusion system and a use method thereof. The dual-mode tracking detection fusion system with comprehensive functions can be provided.

Description

Technical Field

[0001] The present invention relates to the field of optoelectronic technology, and in particular to a dual-mode tracking, detecting and fusion system and a method for using the system. Background Art

[0002] A dual-mode detector is a device used to acquire and fuse images.

[0003] In the related art, the functions of dual-mode detectors are relatively single and cannot take into account the requirements of tracking and detection performance.

[0004] Therefore, in order to solve the above problems, a comprehensive dual-mode tracking and detection fusion system is urgently needed. Summary of the invention

[0005] The embodiment of the present invention provides a dual-mode tracking, detection and fusion system and a method for using the same, which can provide a dual-mode tracking, detection and fusion system with comprehensive functions.

[0006] In the first aspect, an embodiment of the present invention provides a dual-mode tracking, detection and fusion system, including a first detector and a second detector, wherein the optical axis position of the first detector is fixed, and the second detector is connected to a swinging mirror, and the swinging mirror is used to control the swing of the optical axis of the second detector so that the optical axis of the second detector is parallel to or intersects with the optical axis of the first detector. When the optical axis of the first detector is parallel to the optical axis of the second detector, the distance between the optical axes of the two is a preset distance, and the preset distance is a distance that makes the image of the tracked target in different positions in the field of view of the first detector and the field of view of the second detector.

[0007] In one possible design, the RCS is no greater than 0.02m within 5 km. 2 During target detection and tracking, when the optical axis of the first detector is parallel to the optical axis of the second detector, the fixed deviation of the central fields of view of the two detectors is 50 pixels.

[0008] In a second aspect, an embodiment of the present invention further provides a method for using a dual-mode tracking and detection fusion system. Based on any of the above-mentioned systems, the method for using includes a tracking and detection method:

[0009] Adjusting the sweep mirror so that the optical axis of the second detector is parallel to the optical axis of the first detector;

[0010] Adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the two detectors;

[0011] Start target detection and tracking, establish track, and calculate target position and target information;

[0012] The first detector and the second detector periodically exchange track and position information with each other.

[0013] In a possible design, adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the two detectors includes:

[0014] The first detector and the second detector are adjusted so that the image of the tracking target collected by one detector is located at the center of its field of view, and the image of the tracking target collected by the other detector is located at the edge of the field of view.

[0015] In one possible design, it also includes:

[0016] When a detector loses the tracking target, the detector will synchronously perform simulated navigation tracking based on the track and position information of another detector;

[0017] When the detector that lost tracking the target captures the target again, the two detectors complete information calibration and actively track the target again.

[0018] In a third aspect, an embodiment of the present invention further provides a method for using a dual-mode tracking detection fusion system. Based on any of the above-mentioned systems, the method for using includes a fusion method:

[0019] Adjusting the sweep mirror so that the optical axis of the second detector intersects the optical axis of the first detector so that the image of the target is located in the center of the field of view of the two detectors;

[0020] The first detector and the second detector collect image data;

[0021] Performing distortion correction on the image data;

[0022] The corrected image information is calculated using the cubic convolution algorithm;

[0023] Image fusion is performed using a dual-mode image fusion network algorithm according to the image information to obtain fused data.

[0024] In one possible design, the distortion correction is implemented by the following formula:

[0025]

[0026] Among them, x and y are the original image pixel information of the two detectors, x' and y' are the corrected image information, i and j are the row and column coordinates, n is the difference calculation accuracy parameter, and a and b are the correction weight coefficients of deformity correction.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects:

[0028] The present application realizes field of view difference by increasing the horizontal spacing between the optical axes of the dual-mode detectors, and realizes deflection control of the optical axis of a single detector by swinging the scanning mirror, thereby achieving both high-stability dual-mode detection system tracking and high-quality dual-mode image fusion in a single dual-mode detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a working mode flow chart of a dual-mode tracking detection fusion system provided by an embodiment of the present invention;

[0031] Figure 2 A flow chart of a tracking method provided by an embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of a detector field of view in a tracking mode provided by an embodiment of the present invention;

[0033] Figure 4 is a schematic diagram of a detector field of view in an image fusion mode provided by an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of image fusion provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] 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 are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0038] like Figure 1 As shown, an embodiment of the present invention provides a dual-mode tracking detection fusion system, including a first detector and a second detector, the optical axis position of the first detector is fixed, the second detector is connected to a swinging mirror, the swinging mirror is used to control the swing of the optical axis of the second detector so that the optical axis of the second detector is parallel to or intersects with the optical axis of the first detector, when the optical axis of the first detector and the optical axis of the second detector are parallel, the distance between the optical axes of the two is a preset distance, and the preset distance is a distance that makes the image of the tracked target in the field of view of the first detector and the field of view of the second detector at different positions.

[0039] The present application realizes field of view difference by increasing the horizontal spacing between the optical axes of the dual-mode detectors, and realizes deflection control of the optical axis of a single detector by swinging the scanning mirror, thereby achieving both high-stability dual-mode detection system tracking and high-quality dual-mode image fusion in a single dual-mode detection system.

[0040] In some embodiments of the present invention, the RCS within 5 km is not greater than 0.02m 2 When the target is detected and tracked, the optical axis of the first detector is parallel to the optical axis of the second detector, and the central field of view of the two detectors has a fixed deviation of 50 pixels.

[0041] It should be noted that the value of the preset distance can be flexibly set according to the size and distance of the target.

[0042] like Figure 2As shown, an embodiment of the present invention further provides a method for using a dual-mode tracking detection fusion system. Based on any of the above systems, the method includes a tracking detection method:

[0043] Adjusting the sweep mirror so that the optical axis of the second detector is parallel to the optical axis of the first detector;

[0044] Adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the two detectors;

[0045] Start target detection and tracking, establish track, and calculate target position and target information;

[0046] The first detector and the second detector periodically exchange track and position information with each other.

[0047] In this embodiment, the dual detectors detect, image, detect, identify, track and navigate independently of each other.

[0048] like Figure 3 As shown, in some embodiments of the present invention, adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the first detector and the second detector includes:

[0049] The first detector and the second detector are adjusted so that the image of the tracking target collected by one of the detectors is located at the center of its field of view, and the image of the tracking target collected by the other detector is located at the edge of the field of view.

[0050] In some embodiments of the present invention, it further includes:

[0051] When a detector loses the tracking target, the detector will synchronously perform simulated navigation tracking based on the track and position information of another detector;

[0052] When the detector that lost tracking the target captures the target again, the two detectors complete information calibration and actively track the target again.

[0053] like Figure 4 and Figure 5 As shown, an embodiment of the present invention further provides a method for using a dual-mode tracking detection fusion system. Based on any of the above systems, the method for using includes a fusion method:

[0054] Adjust the sweep mirror so that the optical axis of the second detector intersects the optical axis of the first detector so that the image of the target is located in the center of the field of view of the two detectors;

[0055] The first detector and the second detector collect image data;

[0056] Performing distortion correction on image data;

[0057] The corrected image information is calculated using the cubic convolution algorithm;

[0058] According to the image information, the dual-mode image fusion network algorithm is used to complete the image fusion and obtain the fused data.

[0059] In some embodiments of the present invention, distortion correction is achieved by the following formula:

[0060]

[0061] Among them, x and y are the original image pixel information of the two detectors, x' and y' are the corrected image information, i and j are the row and column coordinates, n is the difference calculation accuracy parameter, and a and b are the correction weight coefficients of deformity correction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-mode tracking detection fusion system, characterized in that: The invention comprises a first detector and a second detector, wherein the optical axis position of the first detector is fixed, and the second detector is connected to a swinging mirror, and the swinging mirror is used to control the swing of the optical axis of the second detector so that the optical axis of the second detector is parallel to or intersects with the optical axis of the first detector. When the optical axis of the first detector is parallel to the optical axis of the second detector, the distance between the optical axes thereof is a preset distance, and the preset distance is a distance at which the image of the tracked target is located at different positions in the field of view of the first detector and the field of view of the second detector.

2. The system according to claim 1, characterized in that The RCS within 5 km is not greater than 0.02m 2 During target detection and tracking, when the optical axis of the first detector is parallel to the optical axis of the second detector, the fixed deviation of the central fields of view of the two detectors is 50 pixels.

3. A method for using a dual-mode tracking detection fusion system, characterized in that: Based on the system described in any one of claims 1-2, the use method includes a tracking detection method: Adjusting the sweep mirror so that the optical axis of the second detector is parallel to the optical axis of the first detector; Adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the two detectors; Start target detection and tracking, establish track, and calculate target position and target information; The first detector and the second detector periodically exchange track and position information with each other.

4. The method according to claim 3, characterized in that: Adjusting the first detector and the second detector so that the tracking target is located at different positions in the fields of view of the two detectors includes: The first detector and the second detector are adjusted so that the image of the tracking target collected by one detector is located at the center of its field of view, and the image of the tracking target collected by the other detector is located at the edge of the field of view.

5. The method according to claim 3, characterized in that: Also includes: When a detector loses the tracking target, the detector will synchronously perform simulated navigation tracking based on the track and position information of another detector; When the detector that lost tracking the target captures the target again, the two detectors complete information calibration and actively track the target again.

6. A method for using a dual-mode tracking detection fusion system, characterized in that: Based on the system described in any one of claims 1-2, the use method includes a fusion method: Adjusting the sweep mirror so that the optical axis of the second detector intersects the optical axis of the first detector so that the image of the target is located in the center of the field of view of the two detectors; The first detector and the second detector collect image data; Performing distortion correction on the image data; The corrected image information is calculated using the cubic convolution algorithm; Image fusion is performed using a dual-mode image fusion network algorithm according to the image information to obtain fused data.

7. The method according to claim 6, characterized in that The distortion correction is achieved by the following formula: Among them, x and y are the original image pixel information of the two detectors, x' and y' are the corrected image information, i and j are the row and column coordinates, n is the difference calculation accuracy parameter, and a and b are the correction weight coefficients of deformity correction.

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