Trackers should be placed on significant image features such as corners or tracking markers.

追踪点应放在重要的图像特征如角落或跟踪标记。

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After above processing, the descriptors are insensitive to the affine transform, rotation, noise and so on. They can hold the local features well, such as corners.

经该方法处理得到的描述子对仿射、旋转、噪声等的抗干扰能力得到提升，对形状的局部特性描述能力更强。

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As a result of human activity, such enemies reach even the remotest corners of the world, threatening to make the ancient giants a thing of the past.

由于人类的活动，这些敌人甚至到达了世界上最偏远的角落，威胁要使古代巨人成为历史。

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"There are lots of external design similarities between the iPhone and Galaxy S, such as rounded corners and large screens... but these similarities had been documented in previous products, " a judge at the Seoul Central District Court was quoted as saying by the Reuters news agency.

BBC: Apple and Samsung get South Korea bans

There have been big gains in the more conservative corners of the market, such as consumer staples, utilities and telecommunications stocks.

WSJ: Dow Closes Above 15000

In corners of the job market, such as media and technology, candidates and recruiters swear by Twitter's value.

WSJ: The New R��sum��: It's 140 Characters