This method first extracted the global motion and local motion features in each frame, and video key frame was extracted by Particle Swarm Optimization (PSO) adaptively.

该方法首先提取出视频中每帧的全局运动和局部运动特征，然后通过粒子群算法自适应地提取视频关键帧。

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Video will be a key part of this service.

视频会是这个服务的关键部分。

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The key to overcoming this problem, she discovered, is to offer a five-minute video dramatization when an application is launched, illustrating exactly how it is supposed to work.

她发现，要解决这个问题，关键在于发布产品时附加一段五分钟的视频说明，向用户解说如何使用这个产品。

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The man in the newly released video , is identified as Humam Khalil Abu-Mulal al-Balawi, who blew himself up inside a key U.S base in an eastern Afghan region bordering Pakistan.

VOA: standard.2010.01.09

So for Sony, maintaining a lead in video gaming is key to the group's overall health.

ECONOMIST: The Xbox factor | The

The room is filled with screens that will have live video feeds of key locations around the city.

CNN: FBI: No credible threats to inauguration activities

This short video has the key arguments against this European-style national sales tax.

FORBES: Obama Taps Value-Added Tax Sympathizer For Key Economic Advisory Post