Structural similarity assessment of an optical coherence tomographic image enhanced using the wavelet transform technique

Dehshiri, Mohammad; Sabouri, Saeed Ghavami; Khorsandi, Alireza

doi:10.1364/josaa.401280

Cited by 21 publications

(7 citation statements)

References 24 publications

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“…Figure 2 depicts the retrieved signals at the receiver using different sample thicknesses. The performance of retrieved signal is evaluated and analyzed using peak signal-to-noise ratio (PSNR) [23][24][25]. PSNR values in Figs.…”

Section: Principle and Experimental Resultsmentioning

confidence: 99%

Optical transmission through thick biological tissue using optical modulation

Pan

Xiao

Zhou

et al. 2023

International Conference on Optical and Photonic Engineering (icOPEN 2022)

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Accurate data transmission is important in biological applications and biomedical devices. Realizing high-fidelity optical wireless transmission with a large penetration depth is desirable. Here, a sequence of amplitude-only patterns at the transmitter is considered as information carrier to encode the transmitted data. The total light intensity at the receiving end is collected and recorded by a bucket detector. We verify feasibility and effectiveness of the proposed approach with different thicknesses of a biological sample. The experimental results demonstrate our proposed method based on zero-frequency modulation using low light intensity.

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Section: Principle and Experimental Resultsmentioning

confidence: 99%

Optical transmission through thick biological tissue using optical modulation

Pan

Xiao

Zhou

et al. 2023

International Conference on Optical and Photonic Engineering (icOPEN 2022)

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“…To quantify the performance of the proposed types of HC-PCF devices and to make meaningful comparisons of these structures, the SSIM index is used, defined as follows [34,35]:…”

Section: Resultsmentioning

confidence: 99%

Beam profile and pulse width assessment in an engineered D-shaped hollow-core photonic crystal fiber

Saeedizadeh¹,

Sabouri²,

Khorsandi³

2021

J. Opt.

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In this work, a theoretical model is discussed to investigate the performance of a core-engineered gas-filled hollow-core photonic crystal fiber (HC-PCF). To gain the shortest pulse width and the best beam quality at the output, the core geometry of the fiber is modified within four specific types referred to as type I to type IV fibers. It is found that, by using type III and type IV HC-PCF devices, a 5 ps laser pulse in the input can be respectively compressed to 18.5 fs and 13.7 fs at the output. It is found that, a 5-ps laser pulse in the input can be reduced to 18.5 fs and 13.7 fs if type III- and type IV of modified HC-PCF device are respectively used for compression. The structural similarity (SSIM) index is used to evaluate the quality of the beam cross-section that ultimately emerges from the end of the fiber. The results suggest that the highest SSIM value of 0.76 can be obtained if type III HC-PCF is employed for pulse compression.

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“…The security considerations and available throughput of the prior technologies have some limitations. In typical IEEE 802.11n networks, this study tries [14] to provide a novel information-hiding technique based on OFDM modulation. This strategy is used because steganographic channels based on fast networks allow for more secure and reliable secret communications than more antiquated and insecure ones.…”

Section: International Journal On Recent and Innovation Trends In Com...mentioning

confidence: 99%

A High Secured Steganalysis Using QVDHC Model

Akki

Gitanjali

Iwendi

et al. 2022

IJRITCC

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Data compression plays a vital role in data security as it saves memory, transfer speed is high, easy to handle and secure. Mainly the compression techniques are categorized into two types. They are lossless, lossy data compression. The data format will be an audio, image, text or video. The main objective is to save memory of using these techniques is to save memory and to preserve data confidentiality, integrity. In this paper, a hybrid approach was proposed which combines Quotient Value Difference (QVD) with Huffman coding. These two methods are more efficient, simple to implement and provides better security to the data. The secret message is encoded using Huffman coding, while the cover image is compressed using QVD. Then the encoded data is embedded into cover image and transferred over the network to receiver. At the receiver end, the data is decompressed to obtain original message. The proposed method shows high level performance when compared to other existing methods with better quality and minimum error.

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Structural similarity assessment of an optical coherence tomographic image enhanced using the wavelet transform technique

Cited by 21 publications

References 24 publications

Optical transmission through thick biological tissue using optical modulation

Optical transmission through thick biological tissue using optical modulation

Beam profile and pulse width assessment in an engineered D-shaped hollow-core photonic crystal fiber

A High Secured Steganalysis Using QVDHC Model

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