Search Results - adam+wang

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Self-calibrating Projection Geometry for Volumetric Image Reconstruction

We propose a novel method for enabling volumetric image reconstruction from unknown projection geometry of tomographic imaging systems, including CT, cone-beam CT (CBCT), and tomosynthesis systems. The invention enables image reconstruction in cases where it was not previously possible (e.g., custom-designed trajectories on robotic C-arms, or systems...

Published: 3/13/2025 | Inventor(s): Jeffrey Siewerdsen, Ali Uneri, Adam Wang, Joseph Stayman, Yoshito Otake, Sarah Ouadah

Keywords(s): Image Processing Software, Imaging and Sensing Systems, Imaging Modality, In Vivo Medical Imaging, X-ray Computed Tomography (CT), X-Ray Computed Tomography (CT)

Category(s): Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis, Technology Classifications > Medical Devices > Imaging, Technology Classifications > Computers, Electronics & Software, Technology Classifications > Medical Devices

Method for Preview of Low-dose X-ray Projection and Tomographic Images from a Previous Volumetric Image

Novel Strategy to Preview Low Dose CT ImagesJHU REF: C12995Invention Novelty: The technology is a novel method to preview low dose x-ray and cone beam computed tomography images to predict the minimum radiation dose required to generate an image for clinical use.Value Proposition:Cone-beam computed tomography (CBCT) is used for several clinical imaging...

Published: 3/13/2025 | Inventor(s): Adam Wang, Sebastian Vogt, Gerhard Kleinszig, Jeffrey Siewerdsen

Keywords(s): Image Calibration Software, Image Processing Software, Imaging and Sensing Systems, Imaging Modality, In Vivo Medical Imaging, Interventional and Surgical Systems, Surgical Navigation, X-ray Computed Tomography (CT), X-Ray Computed Tomography (CT)

Category(s): Technology Classifications > Computers, Electronics & Software, Technology Classifications > Computers, Electronics & Software > Image Processing & Analysis, Technology Classifications > Medical Devices > Imaging, Technology Classifications > Medical Devices > Surgical, Technology Classifications > Medical Devices

Method for Preview of Low-dose X-ray Projection and Tomographic Images

Method for Preview of Low-dose X-ray Projection and Tomographic ImagesJHU REF: C12935Invention Novelty:Researchers at Johns Hopkins University have developed a novel method for generating sets of low-dose preview images from Cone Beam CT (CBCT) scans that were performed at a higher dose. Though existing technology can inject noise into an image, the...

Published: 3/13/2025 | Inventor(s): Jeffrey Siewerdsen, Adam Wang

Keywords(s): Image Calibration Software, Image Processing Software, Imaging Modality, Interventional and Surgical Systems, Surgical Navigation, X-ray Computed Tomography (CT), X-Ray Computed Tomography (CT)