Laser-based electro-optical sensors can gather spatial information (imagery) as well as a variety of other types of information. These include motion detection (including vibration), color sensing, and sensing of the effects of the illuminated object on the polarization of the incident illumination. Such systems can have several advantages over sensors that rely on reflected or emitted light. Laser-based systems can gather a full 3D image of an object on a single pulse. The sensors can gather this information in a covert manner because of the high directionality of the laser illumination. Also, a laser-based sensor can gather information with high resolution. In addition, the ability to control the illumination source, the receiver, and the optical aperture can lead to new sensing modalities. We describe various spatial and non-spatial sensing concepts and discuss hardware implementations. In particular we highlight the ability of laser-based systems to produce imagery at very low light levels. The utility of low light level imagery in 2D is discussed and the potential benefits of 3D low light level imagery is assessed. The effect of intervening obscurants on low light level systems are considered. Characteristics of systems that can implement such concepts are also described.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    New imaging modalities for laser-based systems


    Beteiligte:
    Watson, E.A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2001


    Format / Umfang :

    7 Seiten




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Minimally Invasive Laser Tumor Therapy Guided by Imaging Modalities

    Castro, D. J. / Lufkin, R. B. | British Library Online Contents | 1992


    Modalities of low power laser applications

    Mester, A. R. / International Society for Low Power Laser Applications in Medicine | British Library Conference Proceedings | 1992



    Imaging Modalities Relevant to Intracranial Pressure Assessment in Astronauts

    Sargsyan, Ashot E. / Kramer, Larry A. / Hamilton, Douglas R. et al. | NTRS | 2011