Image Deconvolution with Hybrid Reweighted Adaptive Total Variation (HRATV) for Optoacoustic Tomography

Yang, Chen; Jiao, Yang; Jian, Xiaohua; Cui, Yaoyao

doi:10.3390/photonics8020025

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…Once we have the vector u j , we can use (26) to solve for the PAPS. We will improve the second step of the algorithm.…”

Section: Algorithmsmentioning

confidence: 99%

“…These studies were conducted under the premise that TIR was known. However, when TIR is unknown, Chen Yang proposed a method combining hybrid weighted adaptive total variation to improve the image quality of PAT [26]. Nikita Rathi proposed the estimation of the impulse response of photoacoustic systems using homomorphic filtering based on discrete wavelet transform [27].…”

Section: Introductionmentioning

confidence: 99%

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A Method to Obtain the Transducers Impulse Response (TIR) in Photoacoustic Imaging

Yang,

Jing,

Yin

et al. 2024

Applied Sciences

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Photoacoustic tomography (PAT) is an emerging imaging technique with great potential for a wide range of biomedical imaging applications. The transducers impulse response (TIR) is a key factor affecting the performance of photoacoustic imaging (PAI). It is customary in PAI to assume that TIR is known or obtain it from experiments. In this paper, we investigate the possibility of obtaining TIR in another way. A new method is proposed to extract TIR from observed optoacoustic signal (OPAS) data, without prior knowledge, as a known condition. It is based on the relation between the OPAS data and the photoacoustic pressure signal (PAPS) at transducer positions. The relation can be expressed as a homogeneous linear equation. The TIR is solved by solving the homogeneous equation. The numerical test verifies the effectiveness of the presented method. This article also discusses the effect of calculation parameters on the extracting precision of TIR.

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“…Once we have the vector u j , we can use (26) to solve for the PAPS. We will improve the second step of the algorithm.…”

Section: Algorithmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Method to Obtain the Transducers Impulse Response (TIR) in Photoacoustic Imaging

Yang,

Jing,

Yin

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

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Improvement of Optoacoustic Angiographic Images Using One-Dimensional Deconvolution with Adaptive Real-Time Self-Calibration

Timanin,

Mikhailova,

Fiks

et al. 2023

Acoust. Phys.

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Beyond synthetic aperture focusing: deconvolution-based elevation resolution enhancement using simulated point spread function for linear array-based three-dimensional photoacoustic imaging

Tang,

Lesniak,

Gao

et al. 2024

Biomed. Opt. Express

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This paper introduces a deconvolution-based method to enhance the elevation resolution of a linear array-based three-dimensional (3D) photoacoustic (PA) imaging system. PA imaging combines the high contrast of optical imaging with the deep, multi-centimeter spatial resolution of ultrasound (US) imaging, providing structural and functional information about biological tissues. Linear array-based 3D PA imaging is easily accessible and applicable for ex vivo studies, small animal research, and clinical applications in humans. However, its elevation resolution is limited by the acoustic lens geometry, which establishes a single elevation focus. Previous work used synthetic aperture focusing (SAF) to enhance elevation resolution, but the resolution achievable by SAF is constrained by the size of the elevation focus. Here, we introduce the application of Richardson-Lucy deconvolution, grounded in simulated point-spread-functions, to surpass the elevation resolution attainable with SAF alone. We validated this approach using both simulation and experimental data, demonstrating that the full-width-at-half-maximum of point targets on the elevation plane was reduced compared to using SAF only, suggesting resolution improvement. This method shows promise for improving 3D image quality of existing linear array-based PA imaging systems, offering potential benefits for disease diagnosis and monitoring.

show abstract

Image Deconvolution with Hybrid Reweighted Adaptive Total Variation (HRATV) for Optoacoustic Tomography

Cited by 4 publications

References 42 publications

A Method to Obtain the Transducers Impulse Response (TIR) in Photoacoustic Imaging

A Method to Obtain the Transducers Impulse Response (TIR) in Photoacoustic Imaging

Improvement of Optoacoustic Angiographic Images Using One-Dimensional Deconvolution with Adaptive Real-Time Self-Calibration

Beyond synthetic aperture focusing: deconvolution-based elevation resolution enhancement using simulated point spread function for linear array-based three-dimensional photoacoustic imaging

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