diff --git a/_pages/projects.md b/_pages/projects.md index 73e3951..b0bb8ac 100644 --- a/_pages/projects.md +++ b/_pages/projects.md @@ -5,7 +5,7 @@ permalink: /projects/ description: nav: true nav_order: 1 -display_categories: [computational microscopy, computational cameras, artistic project] +display_categories: [computational cameras, computational microscopy, artistic project] horizontal: false --- diff --git a/_projects/10_project.md b/_projects/10_project.md index 43c43c7..b5ebd0d 100644 --- a/_projects/10_project.md +++ b/_projects/10_project.md @@ -9,6 +9,6 @@ category: computational microscopy We report tensorial tomographic Fourier ptychography, a nonscanning label-free tomographic microscopy method for simultaneous imaging of quantitative phase and anisotropic specimen information in 3D. Built upon Fourier ptychography, a quantitative phase imaging technique, T2oFuT2oFu additionally highlights the vectorial nature of light. The imaging setup consists of a standard microscope equipped with an LED matrix, a polarization generator, and a polarization-sensitive camera. Permittivity tensors of anisotropic samples are computationally recovered from polarized intensity measurements across three dimensions. We demonstrate our system's efficiency through volumetric reconstructions of refractive index, birefringence, and orientation for various validation samples, as well as tissue samples from muscle fibers and diseased heart tissue. Our reconstructions of healthy muscle fibers reveal their 3D fine-filament structures with consistent orientations. Additionally, we demonstrate reconstructions of a heart tissue sample that carries important polarization information for detecting cardiac amyloidosis. -* **Reference** - * Shiqi Xu, Xi Yang, Paul Ritter, Xiang Dai, Kyung Chul Lee, Lucas Kreiss, Kevin C. Zhou, Kanghyun Kim, Amey Chaware, Jadee Neff, Carolyn Glass, Seung Ah Lee, Oliver Friedrich, and Roarke Horstmeyer "[Tensorial tomographic Fourier ptychography with applications to muscle tissue imaging]( https://doi.org/10.1117/1.AP.6.2.026004)," *Advanced Photonics* 6(2), 026004 (4 March 2024). +**Reference** +* Shiqi Xu, Xi Yang, Paul Ritter, Xiang Dai, Kyung Chul Lee, Lucas Kreiss, Kevin C. Zhou, Kanghyun Kim, Amey Chaware, Jadee Neff, Carolyn Glass, Seung Ah Lee, Oliver Friedrich, and Roarke Horstmeyer "[Tensorial tomographic Fourier ptychography with applications to muscle tissue imaging]( https://doi.org/10.1117/1.AP.6.2.026004)," *Advanced Photonics* 6(2), 026004 (4 March 2024). diff --git a/_projects/2_project.md b/_projects/2_project.md index b20d2b2..18e5b04 100644 --- a/_projects/2_project.md +++ b/_projects/2_project.md @@ -26,7 +26,7 @@ We developed a method for the high-throughput fabrication of lensless cameras de -Reference +**Reference** * Lee, Kyung Chul, et al. "[Design and single-shot fabrication of lensless cameras with arbitrary point spread functions.](https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-1-72&id=525050)" *Optica* 10.1 (2023): 72-80. diff --git a/_projects/7_project.md b/_projects/7_project.md index 21dc4a9..52c127f 100644 --- a/_projects/7_project.md +++ b/_projects/7_project.md @@ -9,6 +9,6 @@ category: computational microscopy We propose a single-shot wide-field imaging method that maps local temporal intensity decorrelations of dynamic speckle fields. Our method, named rolling shutter speckle imaging (RSSI), utilizes short time intervals between each row of a rolling shutter complementary metal–oxide–semiconductor (RS-CMOS) image sensor to discern fast temporal changes in the speckle field, which otherwise requires sequential measurements with high-speed cameras. RSSI generates elongated speckle patterns on an RS-CMOS image sensor and quantifies temporal decorrelations of speckle fields from row-by-row intensity correlations (RICs) within a single image. To quantify the local speckle decorrelation times of dynamic scattering media, we derived a theoretical model for RIC and verified the model using numerical simulations and flow-phantom experiments. Further, our *in vivo* imaging results show that RSSI can map the flow rate distributions in cerebral blood vessels with the correction of static scattering in the tissue, demonstrating that RSSI is a powerful and cost-effective imaging tool for *in vivo* quantitative blood flow measurements. -* **Reference** - * Yi, Changyoon, et al. ["Single-shot temporal speckle correlation imaging using rolling shutter image sensors." ](https://opg.optica.org/optica/fulltext.cfm?uri=optica-9-11-1227&id=513169). *Optica* 9.11 (2022): 1227-1237. +**Reference** +* Yi, Changyoon, et al. ["Single-shot temporal speckle correlation imaging using rolling shutter image sensors." ](https://opg.optica.org/optica/fulltext.cfm?uri=optica-9-11-1227&id=513169). *Optica* 9.11 (2022): 1227-1237. diff --git a/_projects/8_project.md b/_projects/8_project.md index 43cc9ed..e419677 100644 --- a/_projects/8_project.md +++ b/_projects/8_project.md @@ -9,6 +9,6 @@ category: computational cameras We present a lensless snapshot hyperspectral camera that is capable of hyperspectral imaging over a broad spectrum using a compact and low-cost hardware configuration. We leverage the multiplexing capability of a lensless camera, a novel type of computational imaging device that replaces the lens with a thin mask. Our device utilizes a linear variable filter and a phase mask to encode spectral information onto a monochromatic image sensor, enabling recovery of hyperspectral image stacks from a single measurement by utilizing spectral information encoded in different parts of the 2D point spread function. We perform spectral calibration using a reference color chart and verify the prototype device’s spectral and spatial resolution, as well as its imaging field of view. We report on the design and construction of the device, the image reconstruction algorithm, and spectral calibration methods and present hyperspectral images ranging from 410 to 800 nm obtained with our prototype device. -* **Reference** - * Kim, Taeyoung, et al. ["Aperture-encoded snapshot hyperspectral imaging with a lensless camera." ](https://pubs.aip.org/aip/app/article/8/6/066109/2900496) *APL Photonics* 8.6 (2023). +**Reference** +* Kim, Taeyoung, et al. ["Aperture-encoded snapshot hyperspectral imaging with a lensless camera." ](https://pubs.aip.org/aip/app/article/8/6/066109/2900496) *APL Photonics* 8.6 (2023). diff --git a/_projects/9_project.md b/_projects/9_project.md index 7564616..4d4b7e6 100644 --- a/_projects/9_project.md +++ b/_projects/9_project.md @@ -9,6 +9,6 @@ category: computational cameras We report on the design and construction of a goggle-type eye tracker using a low-cost and high-speed lensless camera for monitoring eye movements in neurodegenerative diseases. A Rolling Shutter image sensor combined with lensless computational imaging allows for the reconstruction of a time sequence of images from a single snapshot, effectively improving the framerate of the camera. We constructed and demonstrated the prototype device using a commercial-grade CMOS image sensor and achieved the improvement of framerate from 15 to 480Hz, with the tracking results for 28 clinical measured data. Our device can potentially measure microsaccadic eye movements in a wearable camera format, allowing routine monitoring of abnormal eye movements for the early diagnosis and tracking of Alzheimer’s and Parkinson’s disease. -* **Reference** - * Kim, Taeyoung, et al. ["High-speed lensless eye tracker for microsaccade measurement" ](https://doi.org/10.1117/12.3017964) *Proc. SPIE 13076, SPIE Advanced Biophotonics Conference* (2024). +**Reference** +* Kim, Taeyoung, et al. ["High-speed lensless eye tracker for microsaccade measurement" ](https://doi.org/10.1117/12.3017964) *Proc. SPIE 13076, SPIE Advanced Biophotonics Conference* (2024).