Fast and Robust Multiframe Super Resolution

Farsiu, Sina; Robinson, Michael; Elad, Michael; Milanfar, Peyman

doi:10.1109/tip.2004.834669

Cited by 1,830 publications

(1,378 citation statements)

References 23 publications

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“…First, the raw SD OCT images were denoised using an iterative maximum a posteriori-based algorithm, exploiting L2 norm penalty and a variation of the Tikhonov prior as the likelihood and regularization terms, respectively. 12 In this article, we refer to these individually denoised images as enhanced B scans. Then, the contrast of the SVP image was enhanced by comparing and normalizing the intensity of each projected B-scan (horizontal lines on the SVP) with respect to the global intensity of the SVP.…”

Section: After Informed Consent Was Obtained the Studymentioning

confidence: 99%

Imaging the Infant Retina with a Hand-held Spectral-Domain Optical Coherence Tomography Device

Scott

Farsiu

Enyedi

et al. 2009

American Journal of Ophthalmology

155

109

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• PURPOSE: To evaluate and treat infant retina through the use of a hand-held spectral-domain optical coherence tomography (SD OCT) device in selected cases of Shaken Baby syndrome (SBS).• DESIGN: Observational case series.• METHODS: A novel SD OCT system was optimized and evaluated for infant imaging. An adult eye was imaged with both a standard clinical SD OCT system and the hand-held system. Four eyes of two infants with a history of SBS were imaged with the hand-held system. One infant was imaged again during follow-up examinations. Robust image processing algorithms were developed to create high-quality images. Images were assessed for usefulness in demonstrating pertinent morphologic features.• RESULTS: The novel SD OCT unit proved effective for data acquisition and comparable with conventional chinrest SD OCT. Rapid data acquisition limited motion artifact within the B-scan, although there was slight motion between B scans. The SD OCT images provided previously unseen details with regard to the morphologic features of retinal lesions in these infant eyes. This information influenced prognosis and management.• CONCLUSIONS: As with adults, the hand-held customized SD OCT proved to be an invaluable tool in the differentiation of disease processes or injury in these eyes under study. SD OCT imaging systems may be considered a useful adjunct to RetCam fundus photography for assessment and clinical management in cases of SBS. (Am J Ophthalmol 2009;147:364 -373.

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Section: After Informed Consent Was Obtained the Studymentioning

confidence: 99%

Imaging the Infant Retina with a Hand-held Spectral-Domain Optical Coherence Tomography Device

Scott

Farsiu

Enyedi

et al. 2009

American Journal of Ophthalmology

155

109

View full text Add to dashboard Cite

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“…which shows that, after shifting and zero filling, D T k B T k W T k copies values from the lowresolution to the high-resolution images, and W k B k D k reverses the operation [11]. Pixel values are unaffected by these complimentary operations, implying that each entry in J 1 is impacted by entries from all low-resolution images.…”

Section: Image Degradation Modelmentioning

confidence: 94%

Diffusion-Steered Super-Resolution Image Reconstruction

Maiseli¹

2018

Colorimetry and Image Processing

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For decades, super-resolution has been a widely applied technique to improve the spatial resolution of an image without hardware modification. Despite the advantages, super-resolution suffers from ill-posedness, a problem that makes the technique susceptible to multiple solutions. Therefore, scholars have proposed regularization approaches as attempts to address the challenge. The present work introduces a parameterized diffusion-steered regularization framework that integrates total variation (TV) and Perona-Malik (PM) smoothing functionals into the classical super-resolution model. The goal is to establish an automatic interplay between TV and PM regularizers such that only their critical useful properties are extracted to well pose the super-resolution problem, and hence, to generate reliable and appreciable results. Extensive analysis of the proposed resolution-enhancement model shows that it can respond well on different image regions. Experimental results provide further evidence that the proposed model outperforms.

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“…A depth map or a three-dimensional shape of subjects is estimated based on a passive multibaseline stereo method [13]. Then, super-resolution processing [14] unifies all the elemental images in the compound-eye image to a single image with the PSFs that reflect their slight dependency on the depth. Consequently, a three dimensional model of the subjects is built on a computer.…”

Section: Methodsmentioning

confidence: 99%

Endoscopic Application of a Compact Compound-Eye Camera

Kagawa¹,

Kawahito²

2015

MST

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A multi-functional compound-eye endoscope enabling multi-spectral imaging and variable field-of-view is presented, which is based on a compact compound-eye camera called TOMBO (thin observation module by bound optics). Narrow-band filters attached to some lenses provide snap-shot multi-band images. Fixed and movable mirrors are introduced to control the field of view, which realizes several observation modes such as three-dimensional shape measurement, wide field-of-view, and close-up observation. AbstrakPenggunaan Kamera Bermata Majemuk Rapat di dalam Endoskopi. Telah diciptakan sebuah endoskop bermata majemuk multifungsi yang memungkinkan pencitraan multispektral dan zona pandang yang bervariasi. Kamera ini dibuat berdasarkan kamera bermata majemuk rapat yang disebut TOMBO (modul observasi tipis dengan optik terikat). Filter yang berbentuk berkas tipis dipasang pada sejumlah lensa dan menghasilkan citra-citra multiberkas yang berbasis jepretan foto. Kamera ini juga menampilkan cermin-cermin yang posisinya konstan atau dapat digeser untuk mengatur zona pandang, yang memungkinkan penggunaan sejumlah moda observasi seperti pengukuran bentuk tiga dimensi, zona pandang yang luas, dan observasi jarak dekat.

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Fast and Robust Multiframe Super Resolution

Cited by 1,830 publications

References 23 publications

Imaging the Infant Retina with a Hand-held Spectral-Domain Optical Coherence Tomography Device

Imaging the Infant Retina with a Hand-held Spectral-Domain Optical Coherence Tomography Device

Diffusion-Steered Super-Resolution Image Reconstruction

Endoscopic Application of a Compact Compound-Eye Camera

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