Towards generic military imaging adaptive optics

Rana, Harbinder S.

doi:10.1117/12.801799

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…. Block diagram of image restoration for atmospheric turbulence objects moving in different directions [2]. Examples of this effect are found at locations such as hot roads and deserts, as well as in the proximity of hot man-made objects such as aircraft jet exhausts.…”

mentioning

confidence: 99%

Atmospheric Turbulence Mitigation Using Complex Wavelet-Based Fusion

Anantrasirichai

Achim

Kingsbury

et al. 2013

IEEE Trans. on Image Process.

125

127

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Restoring a scene distorted by atmospheric turbulence is a challenging problem in video surveillance. The effect, caused by random, spatially varying, perturbations, makes a model-based solution difficult and in most cases, impractical. In this paper, we propose a novel method for mitigating the effects of atmospheric distortion on observed images, particularly airborne turbulence which can severely degrade a region of interest (ROI). In order to extract accurate detail about objects behind the distorting layer, a simple and efficient frame selection method is proposed to select informative ROIs only from good-quality frames. The ROIs in each frame are then registered to further reduce offsets and distortions. We solve the space-varying distortion problem using region-level fusion based on the dual tree complex wavelet transform. Finally, contrast enhancement is applied. We further propose a learning-based metric specifically for image quality assessment in the presence of atmospheric distortion. This is capable of estimating quality in both full- and no-reference scenarios. The proposed method is shown to significantly outperform existing methods, providing enhanced situational awareness in a range of surveillance scenarios.

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mentioning

confidence: 99%

Atmospheric Turbulence Mitigation Using Complex Wavelet-Based Fusion

Anantrasirichai

Achim

Kingsbury

et al. 2013

IEEE Trans. on Image Process.

125

127

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“…The DD-DWT is expansive with a factor of two, comparedto the critically sampled DWT.A dual tree (DT) [2,3] is formed by two wavelet transformsprocessing the same input signal and satisfying acertain relationship: one of the wavelets is an approximateHilbert transform of the other.…”

Section: Fig1process Of Image Fusion Based On Dwtmentioning

confidence: 99%

Double Density DWT Based Fusion Technique for Mitigating Turbulence in Surveillance Videos

Shareef¹,

Latha²

2015

IJAREEIE

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ABSTRACT:In this paper a novel turbulence mitigation algorithm is proposed based on Double density discrete wavelet transform based fusion technique. In this scheme DD-DWT is applied to ROI part of selected frame of video sequence to decompose image into sub-bands and then fusion technique is applied to each ROI frame so that obtained output video is distortion free.We compare our method with state-of-art criteria like DTCWT based fusion technique; we prove that our technique yields better results.

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Video Distortion Using Region based DT-CWT Fusion

Supraja

Yashaswini

Sravani

et al. 2021

IJSRSET

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Restoring a scene distorted by a region turbulence could be a difficult drawback in video police work. An image registration allows the geometric alignment of 2 pictures and is wide utilized in varied applications within the fields of remote sensing, a medical imaging and laptop vision. During this paper, we tend to propose a unique methodology for mitigating the consequences of a region distortion on discovered pictures. a region of an interest (ROI) for every frame is taken, to extract correct detail regarding objects behind the distorting layer. An easy and economical frame choice methodology is planned to pick informative ROIs, solely from smart quality frames. Every ROI ought to be register to cut back the distortion. The house variable drawback will be solved by image fusion mistreatment complicated ripple remodel. Finally distinction sweetening is applied.

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Towards generic military imaging adaptive optics

Cited by 3 publications

References 16 publications

Atmospheric Turbulence Mitigation Using Complex Wavelet-Based Fusion

Atmospheric Turbulence Mitigation Using Complex Wavelet-Based Fusion

Double Density DWT Based Fusion Technique for Mitigating Turbulence in Surveillance Videos

Video Distortion Using Region based DT-CWT Fusion

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