23 research outputs found

    Ultrafast Single-Particle Imaging with Intense X-Ray Pulses

    Get PDF
    Ultrafast single-particle imaging with intense x-ray pulses from free-electron laser sources provides a new approach for visualizing structure and dynamics on the nanoscale. After a short introduction to the novel free-electron laser sources and methods, we highlight selected applications and discuss how ultrafast imaging flourishes from method development to early applications in physics and biology to opportunities for chemical sciences

    A chromosome conformation capture ordered sequence of the barley genome

    Get PDF
    201

    Determining the Dominant Plane From Uncalibrated Stereo Vision By a Robust and Convergent Iterative Approach Without Correspondence

    No full text
    A robust, iterative approach is introduced for finding the dominant plane in a scene using stereo vision. Neither camera calibration nor stereo correspondence is required. Iterative two-step methods have been applied to various problems in computer vision, but only recently Cohen has formalized a framework that guarantees (at least local) convergence of such methods. In this paper we adopt this framework to the specific case in which the global step uses tentative matches to estimate the planar projectivity and the local step attempts to solve the stereo correspondence. The points in the second image are only used indirectly in the matching; instead we match to auxiliary points which lie on the line joining the transformed image points and their closest points in the second image. To assure convergence, weights for the auxiliary points are computed corresponding to a selected robust function, making our approach robust to both mismatches and points protruding from the dominant plane. ..

    Non-Rigid Image Registration Using a Parameter-Free Elastic Model

    No full text
    The paper presentsanewparameter-free approach to non-rigid image registration, where displacements, obtained through a mapping of boundary structures in the source and target image, are incorporated as hard constraints for elastic image deformation. As a consequence, our approach does not contain any parameters of the deformation model (elastic constants). The approach guarantees the exact correspondence of boundary structures after elastic transformation provided that correct input data are available. We describe a linear and an incremental model, the latter model allows to cope also with large deformations. Experimental results for 2-D and 3-D synthetic as well as real medical images are presented.

    Q. D. B. V. Venerationem Ex Persvasione Ortam, Nominalibvs Exoptatissimis Serenissimi Principis Ac Domini, Domini Wilhelmi Ernesti, Cognomento Probi, Dvcis Saxoniæ, Ivliaci, Cliviæ , Montivm, Itemqve Angariæ Vvestphaliæ, Landgravii Thvringiæ, Marchionis Misniæ, Comitis Principali Dignitate Hennerbergici, Comitis Marcæ Et Ravensbergæ, Dynastæ Ravensteinii, Principis Regentis Ac Patris Patriæ Longe Clementissimi Ad Indicendvm Actvm Oratorio-Valedictorivm D. XXIIX Maii M DCC XXIIX Avdita Hora III Pomeridiana, In Ill. Gymnasio Wilhelmo-Ernestino ...

    No full text
    Q. D. B. V. VENERATIONEM EX PERSVASIONE ORTAM, NOMINALIBVS EXOPTATISSIMIS SERENISSIMI PRINCIPIS AC DOMINI, DOMINI WILHELMI ERNESTI, COGNOMENTO PROBI, DVCIS SAXONIÆ, IVLIACI, CLIVIÆ , MONTIVM, ITEMQVE ANGARIÆ VVESTPHALIÆ, LANDGRAVII THVRINGIÆ, MARCHIONIS MISNIÆ, COMITIS PRINCIPALI DIGNITATE HENNERBERGICI, COMITIS MARCÆ ET RAVENSBERGÆ, DYNASTÆ RAVENSTEINII, PRINCIPIS REGENTIS AC PATRIS PATRIÆ LONGE CLEMENTISSIMI AD INDICENDVM ACTVM ORATORIO-VALEDICTORIVM D. XXIIX MAII M DCC XXIIX AVDITA HORA III POMERIDIANA, IN ILL. GYMNASIO WILHELMO-ERNESTINO ... Q. D. B. V. Venerationem Ex Persvasione Ortam, Nominalibvs Exoptatissimis Serenissimi Principis Ac Domini, Domini Wilhelmi Ernesti, Cognomento Probi, Dvcis Saxoniæ, Ivliaci, Cliviæ , Montivm, Itemqve Angariæ Vvestphaliæ, Landgravii Thvringiæ, Marchionis Misniæ, Comitis Principali Dignitate Hennerbergici, Comitis Marcæ Et Ravensbergæ, Dynastæ Ravensteinii, Principis Regentis Ac Patris Patriæ Longe Clementissimi Ad Indicendvm Actvm Oratorio-Valedictorivm D. XXIIX Maii M DCC XXIIX Avdita Hora III Pomeridiana, In Ill. Gymnasio Wilhelmo-Ernestino ... ([1]
    corecore