在业务背景简单(如小型或中等规模的业务)的小型敏捷项目中，项目经理是不需要的。

Project Managers are not needed on small agile projects in simple business contexts, such as small and some medium sized businesses.

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但是目前基于单目视觉的手势识别技术中，手势分割要求背景简单或者要求识别者戴着笨重的 数据手套 。

But currently, in the vision-based hand gesture recognition, almost all the technologies on hand gesture segmentation are based on simple background or on gloves in special colors.

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在这种背景下，简单的几何图案可能比真实的更明显。

In this context the simplicity of a geometric motif may be more apparent than real.

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