Based on disparity gradient theory, a weak consistency constraint was proposed, which expressed that the disparity difference between neighbor points was always in certain range.

通过引入视差梯度理论，提出了一种弱连续性约束，它表示相邻点的视差变化总在一定的范围之内。

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Conventional algorithms assumed that the consistency constraint is defined on the original feature space. However, the original feature space is not the best for defining consistency.

传统的算法一致性约束是定义在原特征空间中，但是在原特征空间中定义的一致性不是最好的。

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In the first case, the constraint specification is consistent; in the second case, no statement about consistency can be made.

在第一种情况下，约束规范是一致的，在第二种情况下，不能对一致性给出结论。

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But Nokia sought constraint, citing a need to preserve UI consistency with other Windows Phone devices and avoid the disruptive variation seen in Android smartphones.

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