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US08224033B2 Movement detector and movement detection method 失效
运动检测器和运动检测方法

  • Patent Title: Movement detector and movement detection method
  • Patent Title (中): 运动检测器和运动检测方法
  • Application No.: US12145332
    Application Date: 2008-06-24
  • Publication No.: US08224033B2
    Publication Date: 2012-07-17
  • Inventor: Ya-Wen Lu
  • Applicant: Ya-Wen Lu
  • Applicant Address: TW Hsin-Chu
  • Assignee: Mediatek Inc.
  • Current Assignee: Mediatek Inc.
  • Current Assignee Address: TW Hsin-Chu
  • Agency: Thomas|Kayden
  • Main IPC: G06K9/00
  • IPC: G06K9/00
Movement detector and movement detection method
Abstract:
The invention provides a movement detector for a composite signal, comprising a frame delay unit, a first combiner, a second combiner and a third combiner. The frame delay unit receives the composite signal to generate a one-frame delayed signal, a two-frame delayed signal, and a three-frame delayed signal. The first combiner generates a first difference from a first pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The second mean generates a second difference from a second pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The first pair is different from the second pair. The third combiner generates a third difference for detecting motion based on the first difference and the second difference.
Abstract(Chinese):

本发明提供一种用于复合信号的移动检测器，包括帧延迟单元，第一组合器，第二组合器和第三组合器。 帧延迟单元接收复合信号以产生一帧延迟信号，两帧延迟信号和三帧延迟信号。 第一组合器产生与第一对复合信号，一帧延迟信号，两帧延迟信号和三帧延迟信号的第一差值。 第二平均值产生与第二对复合信号，一帧延迟信号，两帧延迟信号和三帧延迟信号的第二差。 第一对与第二对不同。 第三组合器基于第一差和第二差产生用于检测运动的第三差。

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