preliminary measure

By using zero normalized cross correlation similarity measure feature points, and preliminary matching, using the uniqueness of matching constraint and disparity gradient constraint, remove the wrong match points to precisely match.

通过采用归一化零互相关系数度量特征点的相似性，进行初步的粗匹配，采用视差梯度约束、唯一性约束去除错误的匹配点，达到精确匹配的目的。

Preliminary study on the measure of fines concentration in the filtrate of Dynamic Drainage Test DDT.

本文探讨了动态滤水实验滤液中细小组分浓度的测定方法.

A Preliminary Study on Silt-scouring Measure for A Tidal Power Station on The North-branch of Chang jiang River

对长江北支潮汐电站冲淤措施的初步探讨

Preliminary discussion on succor procedure, measure, organizing and command of large building collapse

浅谈大型建（构）筑物倒塌事故的救援程序、措施与组织指挥

Preliminary Study on Improvement Measure of Turf Thatch in Kunming

昆明市草坪枯草层改良措施的研究