Photonic Integrated Chip on TriPleX Platform for Realizing Optical Haar Transform and Compression in the Visible Spectrum

Fashi, Ali Azimi; Samiei, Mohammad Hashem Vadjed; Pinho, Cátia; Teixeira, A.

doi:10.1109/jqe.2021.3102845

Cited by 2 publications

(4 citation statements)

References 36 publications

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“…In recent years, we have presented an approach to implement all-optical Haar wavelet transform using multimode interference (MMI) structure for the first time [11]. From this idea, the Haar transform using directional couplers in all-optical domain for image compression has been developed in recent years [8]. In this study we further develop the Haar wavelet transform for image processing applications.…”

Section: Theory Of the Haar Wavelet Transform For Image Compressionmentioning

confidence: 99%

“…Image capture, processing, and characterization at high speeds have revolutionized industries such as high throughput microscopy and machine vision. Traditionally, image capture is conducted using CMOS (Complementary Metal-Oxide-Semiconductor) image sensors or CCDs (Charge Coupled Device) in the electrical domain [8]. Utilizing optical computing systems, recent research has focused on addressing these weaknesses.…”

Section: Introductionmentioning

confidence: 99%

“…These methods require a large size and cannot be integrated with photonic integrated circuits that can be embedded in the camera in the future. Image processing in integrated optics using meta-materials and optical waveguide circuits has been studied [5,8]. These methods are based on directional couplers and 2×2 MMIs based on meta-materials or the Si 3 N 4 platform.…”

Section: Introductionmentioning

confidence: 99%

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Image compression in all-optical domain using one 6×6 multimode interference coupler

Thuy¹,

Thanh

2023

Vietnam J. Sci. Technol.

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We present a new method for image compression using the Haar wavelet transform (HWT) in all-optical domain. The proposed architecture is based on the optical Haar wavelet transform using only one 6×6 multimode interference (MMI) coupler. By locating the positions of input and output waveguides and optimizing design length of the MMI, the expected matrix of the Haar transform is obtained. The new hardware architecture is suitable for directly integrating with digital cameras for image processing. The processing of images therefore is at very high speed. Our method can also be applied to data compression in big data analytics. Our structure can provide a large fabrication tolerance which is compatible with the CMOS existing technology. Our simulations show that the length variation of ± 2 µm still keeps the output powers unchanged. We have simulate successfully the use of the proposed HWT to compress cameraman image with the compressed ratios of 20, 30, 50 % with MSE and PSNR from 0.1 - 0.3 and 62 – 67 dB, respectively.

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Section: Theory Of the Haar Wavelet Transform For Image Compressionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Image compression in all-optical domain using one 6×6 multimode interference coupler

Thuy¹,

Thanh

2023

Vietnam J. Sci. Technol.

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“…In the literature, there are some method for all-optical signal processing. Most of them are based on optical fibers or lens [4]. Another important approach for realizing all-optical orthogonal transforms is to use multimode interference structures due to their advantages of compactness, good fabrication tolerances and ease of integration.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Karhunen-Loeve Transform Using Mmi Couplers for Image Processing Applications

Thùy¹,

Ngọc²,

Thành³

2022

TNUJST

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Trong nghiên cứu này, chúng tôi đề xuất một phương pháp mới để nén ảnh trong miền toàn quang sử dụng kỹ thuật biến đổi KLT. Biến đổi KLT được thực hiện chỉ dùng một cấu trúc giao thoa đa mode MMI trong miền toàn quang. Biến đổi Karhunen-Loeve (KLT) rất hấp dẫn đối với các ứng dụng xử lý hình ảnh do hiệu quả tính toán, tương quan dư và lợi ích của tiêu chí biến dạng tỷ lệ. Cấu trúc giao thoa sử dụng hiệu ứng giao thoa giới hạn với việc thiết kế vị trí cổng vào và ra phù hợp để tạo được biến đổi KLT. Kỹ thuật nén ảnh toàn quang sử dụng KLT đã được thiết kế thành công trong dải bước sóng RGB nhìn thấy với độ chính xác cao, dải sai số chế tạo ±2 µm trong chiều dài MMI. Việc xử lý tín hiệu trong miền toàn quang như vậy có thể tích hợp được trên một chip đơn trong các camera trí tuệ nhân tạo trong tương lai. Phương pháp được đưa ra trong nghiên cứu này xử lý tín hiệu ảnh trực tiếp trong miền quang, do đó nâng cao tốc độ xử lý và giảm công suất tiêu thụ.

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Photonic Integrated Chip on TriPleX Platform for Realizing Optical Haar Transform and Compression in the Visible Spectrum

Cited by 2 publications

References 36 publications

Image compression in all-optical domain using one 6×6 multimode interference coupler

Image compression in all-optical domain using one 6×6 multimode interference coupler

All-Optical Karhunen-Loeve Transform Using Mmi Couplers for Image Processing Applications

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