【摘 要】
:
This paper presents an eye and iris detection algorithm for human facial images. The authors combine three features of the eye to develop the algorithm:1) the pixels surrounding the eyes are more vari
【出 处】
:
Journal of Southwest Jiaotong University(English Edition)
论文部分内容阅读
This paper presents an eye and iris detection algorithm for human facial images. The authors combine three features of the eye to develop the algorithm:1) the pixels surrounding the eyes are more variable than other parts of the face; 2) eye pixels are
其他文献
We apply ambient noise tomography to significant seismic data resources in a region including the northeastern Tibetan plateau,the Ordos block and the Sichuan basin.The seismic data come from about 16
为了促进有效减灾,为可持续发展战略服务,拟以《防灾减灾工程学报》为交流平台,以《学报》编委会为学术依托,发起组织召集"全国防灾减灾工程学术系列研讨会",会议立足于交流近年来我国防灾减灾工程领域里的最新研究成果,推动理论在工程实践中的应用,为我国人居和重大工程提供安全环境而努力。
详细介绍了观测海洋内波环境要素的重要性、分析了内波观测技术的国内外发展现状,并提出了一种具有升降功能的内波测量平台技术。该系统一次布放可连续可靠服役3个月,最大使用深度400 m,内波测量深度范围0~300 m,可以测量影响海洋内波要素的温盐深流实时数据,从而获得内波从形成到消亡的全过程信息和数据。
The microfilament (MF) cytoskeleton has crucial functions in plant development.Recent studies have revealed the function of MFs in diverse stress response.Alkaline stress is harmful to plant growth;ho
The effects of CO2 enrichment on various ecophysiological parameters of tropical seagrass Thalassia hemprichii(Ehrenb.) Aschers were tested.T.hemprichii,collected from a seagrass bed in Xincun Bay,Hai
通过测定人工湿地植物叶片中叶绿素含量、MDA含量及SOD酶活性,研究不同通电强度下人工湿地植物生理特性变化,分析电场对植物生理特性的影响机理,为利用电场强化人工湿地去除污染物提供依据。研究结果表明,与对照植物相比,1和3V低强度电压对植物正常生理指标变化无明显影响,且生长趋势优于对照组;随着电压强度的升高,植物叶片中叶绿素含量、MDA含量以及SOD酶活性受到较大影响,表明植物体受到较强的氧化胁迫,
The aim of the study was to develop an index to assess the environmental risk of P loss potential in vegetable soils with chronic difference of plantation in the suburbs of Changsha, Hunan Province, C
Heavy metal accumulation and its influential factors were studied in the different land use soils, which would provide a theoretical basis for controlling the content of heavy metals in soils. To iden
开展土壤重金属空间变异规律的研究,有助于查明土壤重金属在区域空间内的变异原因、结果和趋势,揭示其空间分布规律,从而为土壤环境规划和管理提供科学依据。本文利用地统计学方法,对原阳县土壤重金属的空间变异规律进行了研究。研究表明:土壤Cu、Zn、As和Cr在东西向均无明显变异,Cu、Zn和As的变异趋势相近,在18 km范围以内各方向均无变异,主要受区域因素影响,在18 km范围以外,除东西向外均出现不
在作物生长期间,定期监测各核心示范区的土壤墒情变化情况,并根据各种作物墒情评价指标做出客观评价,提出管理建议,并以简报、网络、报纸等方式传达,以指导项目区作物的合理灌水,最终实现增产增收。