Iterated variational regularization combined with componentwise regularization

US8468189B2 · kind B2 · utility

Assignee

• Okinawa Institute of Science and Technology Promotion Corporation · JP

Inventors

• Ozan Öktem · Sundbyberg, SE
• Hans Rullgàrd · Upplands Väsby, SE
• Johan Lagerros · Nacka, SE
• Lars-Göran Wallentin Öfverstedt · Okinawa, JP
• Anders Edin · Järfälla, SE

Key dates

• Filing date: Nov 8, 2007
• Grant date: Jun 18, 2013
• Expiry date: Jun 9, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2211/424
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention relates to a solution for solving an ill-posed inverse problem in image analysis, e.g. in an electron tomography application in order to recover a structure of a sample. The solution is provided for instance as a method comprising steps of determining reliable prior knowledge about the solution, determining initial guess for the solution and determining the corresponding forward operator, deciding upon model of stochasticity, deciding on suitable regularization method, deciding on updating scheme, and producing a sequence using the set configuration.