查询词典 row

Aiming at the position characteristic of constant spacing, the method of obtaining the center line of crop rows is researched. The improved pixel lateral histogram algorithm for extracting the center of crop row is designed.

针对条播作物的行距基本恒定，条播作物都成行排列的位置特征，本文着重研究了作物中心行的提取方法，设计了改进的像素直方图法提取作物中心行的算法。

Although crop has been located in world front row, if fastener crop is 26 ％ of world to control, certain room world the first, the product such as gear, chain also is entered the 2nd, 3, but level of sale, technology still differs one stride.

虽然产量已经位于世界前列，如紧固件产量为世界26％左右，稳居世界第一，齿轮、链条等产品也进入第二、三位，但是销售额、技术水平还相差一大步。

Finally, tests of following crop row showed that shadow removal method based on illumination invariant image satisfied real-time requirement of system and improved the robustness of extracting navigation parameters under variable daylight illuminants.

最后，通过作物行跟踪试验表明，基于光照无关图的阴影去除方法不仅满足了导航实时性的要求，而且使农业机器人在光照变化的情况下导航参数提取的鲁棒性有了更大的提高。

By comparing the simulated gap frequency with the measured one,the two had good agreement.The model caught the main features of the measured gap fraction of maize canopy and reflected the characteristics of row crop.

将测量值与模拟值进行对比，二者有一定的相似性，模型能较好地抓住玉米冠层孔隙率的主要特征。

So in this paper, the improved models were proposed which regarded the leaf photosynthetic trait and the light penetrating into row cucumber crop canopy heterogeneously, it is composed by the model of photon transport in heterogeneous leaf canopy and the empiristic formula which described regression between leaf age and maximal photosynthesis rate and use efficiency of sunlight.

该文所建立的日光温室黄瓜非均质冠层光合速率模型考虑到日光温室黄瓜冠层内光照分布以及叶片光合特性的不均匀性，其包含了非均匀冠层的透光模型和描述冠层叶片光合特性差异的经验公式。

USDA released its August crop report and World Agricultural Supply and Demand Estimates update last week, incorporating USDA's first NASS seasonal row crop yield estimates and the results of its special review of acreage for harvest following spring flooding.

美国农业部上周公布了8月份作物报告和世界农业供需最新预测，其中包含农业部下属机构国家农业统计局对行播作物年度单产的首次预测以及对春洪发生后播种面积的专门核定。

World Ag Expo displays a wide variety of equipment, state-of-the-art technology and services used in all facets of agriculture including dairy, citrus, row crop, livestock, tree fruit, cotton and viticulture.

展览将展出大量设备，新技术和服务，它们应用于农业各个方面，包括，奶制品，农作物，牲畜，棉花，水果及葡萄栽培。

Moreover, the block of texture was selected on the basis of the central line of crop row. The co-occurrence matrixes of the H color space that was quantified 8 levels were computed. Based on that, five texture parameters were extracted. Then, the K-means clustering method was used to recognize weeds within crop rows.

然后，以作物行中心为基准来选取纹理块，计算量化级数为8级的H颜色空间的共生矩阵，提取5个纹理特征参数，利用K均值聚类法判别分析各块的类别来识别行内杂草。

Directional Brightness Temperature of 3D row crop canopy generated by the Clumped Architecture Model of Plants were calculated efficiently and accurately based on the Persistence of Vision Raytracer software. Clumping index, average leaf angle and leaf area index are main parameters of CLAMP model. By analyzing the sensitivity of these parameters to DBT, the changing rules of DBT were found.

利用POV-ray光线追踪方法，对植被真实结构模型生成的复杂行播场景下的方向亮温进行快速演算，并针对CLAMP模型中集聚指数，平均叶倾角和叶面积指数，对冠层方向亮温的影响做敏感性分析，得到在不同参数输入条件下DBT的一些规律。

The updated WASDE incorporates the recently released September 1 grain stocks estimates for the 2007-08 crop year end, the 2008 US small grain crop annual production summary estimates, ongoing world crop and trade results, as well as today's updated US row crop estimates.

测。更新后的全球农业供需预测包含了近期公布的2007－2008作物年度截止9月1日的谷物库存预测、2008年美国小粒谷物年产量汇总预测、全球作物产量及交易现状以及今天的更新后美国行播作物收成预测。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。