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Seam conspicuous degree detection method for digital camouflage splicing

A detection method and camouflage technology, applied in image data processing, image analysis, image enhancement and other directions, can solve problems such as the lack of targeted and objective evaluation of the effect.

Active Publication Date: 2021-05-18
XIAN TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are very few researches on splicing methods for digital camouflage in China, and most of them are spliced ​​directly without any treatment.
The paper "A Digital Camouflage Stitching Algorithm" published in the journal "Optical Technology" in 2017 proposed a digital camouflage splicing method for the first time, but the effect of camouflage splicing has not yet been targeted and objectively evaluated.

Method used

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  • Seam conspicuous degree detection method for digital camouflage splicing
  • Seam conspicuous degree detection method for digital camouflage splicing
  • Seam conspicuous degree detection method for digital camouflage splicing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1. Use the DJI Phantom 4 drone to take aerial photos of the ocean background. The height and distance of the aerial photography are about 0-100 meters, the angle of incidence is not greater than 45°, the direction of the aerial photography is within 30° to the left and right of the light direction, and the height of the sun The angle is greater than 30°, the atmospheric visibility is more than 10 kilometers, and the picture has no exposure and noise.

[0037] Using Matlab software and original background photos to automatically generate two digital camouflage patterns C to be stitched 1 and C 2 (The resolutions are both 240×270). In this embodiment, horizontal splicing is assumed, and C 1 spelled in C 2 on the left; aerial background photos and generated digital camouflage patterns such as figure 2 (a), figure 2 (b) and figure 2 (c) shown.

[0038] Step 2. Intercept C respectively 1 the far right of and C 2 The leftmost pixel column of the pattern Col 1...

Embodiment 2

[0042] Using the splicing method of literature [1] "A Digital Camouflage Stitching Algorithm" (Yu Jun, Zhang Qiang, Chen Zhongwei, etc. Optical Technology, 2017,43(4):339-342.) figure 2 C in 1 and C 2 Digital camouflage stitching was carried out, and the stitching results are as follows Figure 5 As shown in (a), and the calculation of the seam saliency index is carried out on the result, such as Figure 5 (b), the result is: S 1 = 0.296.

Embodiment 3

[0044] Using the splicing method of literature [2] "Digital camouflage pattern splicing method based on texture synthesis and optimal seam" figure 2 C in 1 and C 2 Digital camouflage stitching was carried out, and the stitching results are as follows Image 6As shown in (a), and the calculation of the seam saliency index is carried out on the result, such as Image 6 (b), the result is: S 2 = 0.185.

[0045] The seam salience index is a value within [0,1]. The closer the value is to 1, the more prominent the seam is and the more obvious the target exposure is; the closer to 0 is the less prominent the seam, which is more conducive to hiding. From above-mentioned 3 embodiments, directly to C in embodiment 1 1 and C 2 The seam saliency index after splicing is the highest, and the result is 0.519; the seam salience index after splicing by the method of embodiment 2 document [1] is lower than the direct splicing method, and the result is 0.296; using the embodiment 3 The s...

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Abstract

The method for detecting the seam conspicuousness of digital camouflage splicing proposed by the present invention is an objective evaluation method for digital camouflage splicing seams. The method of the present invention can quantify the evaluation result of splicing seams as [0,1] The value within the value can accurately indicate the degree of target exposure at the seam. The closer to 1, the more prominent the seam and the more obvious the target exposure is; The detection method can calculate and compare the performance advantages and disadvantages of different splicing methods, so as to further guide the design of splicing methods.

Description

technical field [0001] The invention belongs to the cross technical field of computer technology and military engineering camouflage technology, and relates to a method for detecting the conspicuousness of digital camouflage splicing seams, which can be used to quantitatively evaluate the conspicuousness of splicing seams of digital camouflage patterns, and contribute to digital camouflage splicing algorithms design and optimization. Background technique [0002] Digital camouflage uses the principle of spatial color mixing and patch characteristics to make the boundary between the camouflaged target and the surrounding background more fragmented and blurred, the target and the background are easier to integrate, and the camouflage effect is better than traditional camouflage. However, when the camouflage pattern is painted on the camouflage target, due to the three-dimensional characteristics of the camouflage target, there will be obvious pattern splicing traces at the jun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/13G06T3/00
CPCG06T3/0068G06T7/0002G06T2207/10004G06T2207/10024G06T2207/30168G06T7/13
Inventor 喻钧胡志毅李中华马龙姚红革初苗王亚文康秦瑀高守义廉志超张云辉
Owner XIAN TECH UNIV