针对SIFT算法误匹配点多和匹配速度慢的问题,本文提出一种SIFT像素点筛选预处理降维双向匹配方法,在SIFT构造Do G空间前进行像素点筛选预处理,减少无用特征点产生;在特征描述
<正> 全省城乡占地1100多平方公里,有鼠27种,占哺乳动物75种的36%,总数1亿多只,超过人口的3倍,每年损耗粮食9亿公斤,占全省粮食产量的9%左右。其中褐家
我地有西瓜种植户反映,瓜田套种玉米影响西瓜质量,如出现黄心等。但也有人说,这是肥料的问题。到底怎样,请解答,并谈谈提高西瓜品质的技术。
The kinetics of reaction of bromo-epoxy resin with oleic acid in the presence of dimethylbenzylamine catalyst was studied. The reaction is a zero order reaction
π-Facial stereoselectivety in Diels-alder reactions and their synthetic applications have attracted considerable attention in recent years. In the Diels-Alder
针对混沌序列单一调频或调相波形存在波形复杂度低,限制了混沌信号可预测的概率、雷达的截获概率和抗干扰性能的问题,提出了基于混沌序列将频率和相位联合调制用于波形设计的
StudiesonAcylthiosemicarbazidesandRelatedHeterocycle(XXIII)──SynthesisandBactericidalActivityOf5-(5-(3-pyridyl)-2H-tetrazole-...
为了更好地描述非平稳音频信号的特征,提出了一种基于Gabor字典和稀疏表示权重张量的时-频音频特征提取方法。该方法基于Gabor字典将音频信号编码为稀疏的权重向量,并进一步
This paper covers the construction and behaviour of a mixed binder carbon paste electrode system appropriate for the cathodic stripping voltammetric quantitatio
A global optimum location algorithm called Variable Step-Size Generalized Simulated Annealing(VSGSA) was applied to treating the data obtained by using an array