在得知某种纹理类别之后,本文采用了一种新的方向特征提取方法:改进的动态基(Active Basis)特征。由于动态基方法可以很好提取图像的方向特征,所以每个基的直方图信息就可以作为每个光照角度的训练特征。
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basis of active components 活性物质基础
The marginal distributions are combined with Active Basis into a joint probability ratio to distinguish foreground object from natural background.
然后把这个分布结合动态基特征形成一个联合概率以区分前景物体和背景。
参考来源 - 基于纹理与勾描的物体识别·2,447,543篇论文数据，部分数据来源于NoteExpress
We have simultaneously supported as many as 17 different products, providing builds for up to 50 releases on an active basis.
我曾经同时支持过多达17种不同的产品，并为一个不断变化的软件提供将近50个发布版本。
In continuous live migration, the active host performs pre-copy with checkpoints on a continuous basis (at the stop-and-copy phase).
在连续的动态迁移中，活动主机(在停止与复制阶段中)不断使用检查点执行预先复制。
They were asked whether they had been physically active on a regular basis during their teenage years and at ages 30, 50 and later.
他们被问之在青少年时期与30岁、50岁或更晚的时候是否经常地积极地参加身体锻炼。
"People who were physically active on a regular basis had lower risk of cognitive impairments in late life.
VOA: special.2010.07.07
"Being physically active on a regular basis is a difficult thing, but the MyActivity Pryamid offers adults a variety of ways that they can reach these recommendations for health and improving the quality of life."
VOA: standard.2010.02.26
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