Simple flowing wave-like shape and the dark gray background velocity steadily to create a feeling of atmosphere.

简单流畅的波浪式造型、灰黑沉稳的底色顷刻之间营造了一种大气的感觉。

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Then approximate wave impedance is computed after background velocity has been obtained by making constant-velocity scanning.

并在常速扫描取得背景速度的基础上计算近似波阻抗。

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This system can realize the detection of the non-rigid moving object and the estimation of the background velocity through the Level-Set method and piece-wise smooth motion field constraint.

该系统采用水平集方法，利用分段平滑运动场的约束条件，实现非刚体运动目标检测和背景的运动估算。

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