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    • 5. 发明申请
    • APPARATUS AND METHOD FOR SPATIALLY SELECTIVE SOUND ACQUISITION BY ACOUSTIC TRIANGULATION
    • 通过声学三角形进行空间选择性声音采集的装置和方法
    • WO2012072787A1
    • 2012-06-07
    • PCT/EP2011/071600
    • 2011-12-02
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERGHERRE, JürgenKÜCH, FabianKALLINGER, MarkusDEL GALDO, GiovanniGRILL, Bernhard
    • HERRE, JürgenKÜCH, FabianKALLINGER, MarkusDEL GALDO, GiovanniGRILL, Bernhard
    • H04R1/40H04R3/00
    • H04R1/40G10L2021/02166H04R1/406H04R3/005H04R2201/401H04R2430/25
    • An apparatus for capturing audio information from a target location is provided. The apparatus comprises a first beamformer (110) being arranged in a recording environment and having a first recording characteristic, a second beamformer (120) being arranged in the recording environment and having a second recording characteristic and a signal generator (130). The first beamformer (110) is configured for recording a first beamformer audio signal and the second beamformer is configured for recording a second beamformer audio signal when the first beamformer (110) and the second beamformer (120) are directed towards the target location with respect to the first and the second recording characteristic. The first beamformer (110) and the second beamformer (120) are arranged such that a first virtual straight line, being defined to pass through the first beamformer (110) and the target location, and a second virtual straight line, being defined to pass through the second beamformer (120) and the target location, are not parallel with respect to each other. The signal generator (130) is configured to generate an audio output signal based on the first beamformer audio signal and on the second beamformer audio signal so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and the second beamformer audio signal.
    • 提供了一种用于从目标位置捕获音频信息的装置。 该装置包括布置在记录环境中并具有第一记录特性的第一波束形成器(110),第二波束形成器(120)布置在记录环境中并具有第二记录特性和信号发生器(130)。 第一波束成形器(110)被配置为用于记录第一波束形成器音频信号,并且第二波束形成器被配置用于当第一波束形成器(110)和第二波束形成器(120)指向目标位置时记录第二波束形成器音频信号, 到第一和第二记录特性。 第一波束成形器(110)和第二波束成形器(120)被布置成使得被定义为穿过第一波束形成器(110)和目标位置的第一虚拟直线和被定义为通过的第二虚拟直线 通过第二波束形成器(120)和目标位置不相对于彼此平行。 信号发生器(130)被配置为基于第一波束形成器音频信号和第二波束形成器音频信号来生成音频输出信号,使得音频输出信号与来自目标位置的音频信息相比,反映来自目标位置的相对更多的音频信息 第一和第二波束形成器音频信号中的目标位置。
    • 7. 发明申请
    • EXPLOITING RESIDUAL PROJECTION DATA AND REFERENCE DATA FOR PROCESSING DATA PRODUCED BY IMAGING MODALITY
    • 开发残留投影数据和用于处理通过成像模式生成的数据的参考数据
    • WO2015140177A1
    • 2015-09-24
    • PCT/EP2015/055576
    • 2015-03-17
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.TECHNISCHE UNIVERSITÄT ILMENAU
    • DEL GALDO, GiovanniRÖMER, FlorianGROSSMANN, MarcusOECKL, StevenSCHÖN, Tobias
    • G06T11/00
    • G06T11/005G06T2211/436
    • Apparatus which can be used in a context of image reconstruction on the basis of projection data produced by an imaging modality, such as computer tomography or magnetic resonance imaging comprises a residual projection data processor (101; 201; 301) and an image reconstruction unit (102; 202; 302). The residual projection data processor (101; 201; 301) is configured to determine residual projection data (I) by cancelling reference projection data (II) from measured projection data (III). The measured projection data (III) represents a measured projection of a test object under examination obtained by an imaging modality. The reference projection data (II) represents a projection of a reference object. The image reconstruction unit (102; 202; 302) is configured to reconstruct a resulting residual image (IV) on the basis of the residual projection data (I) by solving an inverse projection transformation problem that links the residual projection data (I) to the resulting residual image (IV). The resulting residual image (IV) represents differences between the reference object and the test object under examination. A corresponding method is also described.
    • 可以在基于由诸如计算机断层摄影或磁共振成像的成像模态产生的投影数据的图像重建的上下文中使用的装置包括残余投影数据处理器(101; 201; 301)和图像重建单元 102; 202; 302)。 剩余投影数据处理器(101; 201; 301)被配置为通过从测量的投影数据(III)中取消参考投影数据(II)来确定剩余投影数据(I)。 测量投影数据(III)表示通过成像模态获得的检查对象的测量投影。 参考投影数据(II)表示参考对象的投影。 图像重建单元(102; 202; 302)被配置为通过求解将剩余投影数据(I)与残差投影数据(I)相关联的逆投影变换问题 所得残留图像(IV)。 所得到的残差图像(IV)表示参考对象和检查对象之间的差异。 还描述了相应的方法。