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A new set of affine moment invariants was used to test ify the formula derived in the paper. 一组新的由低阶中心矩构成的仿射不变量验证了本文推导的正确性。
affine moment invariants 仿射不变矩
Keywords Image recognition;Moment invariant;Rotational transform;Affine moment invariant;Fast algorithm;Blurring invariant;BP neural network; 图像识别;不变矩;旋转变换;仿射不变矩;快速算法;模糊不变量;BP神经网络;
When detecting the watermark, the similarity of the watermarks was calculated using the eigen distance of the moment invariants. 在检测水印时，提出了一种利用不变矩特征距离来计算水印相关性的方法。
In this paper, a new pose reconstruction technology using computer vision invariance is proposed and the Hu moments invariable and AMIs (Affine moments invariable) 该方法将经典的Hu矩不变量与仿射矩不变量(AMIs)相结合。实践证明，与经典的Hu矩方法相比，基于Hu矩不变量与仿射矩不变量(AMIs)相结合的方法不仅修正了Hu矩方法中由于旋转不变性所导致的误差，而且计算的总体效率也提高了10%25以上。
The Pseudo-Zernike moment invariants are extracted as features after the normalization of the seals translation and scaling. 首先通过对印鉴图像进行规格化来获得平移和缩放的不变性，然后提取印鉴图像的伪Zernike矩不变量作为特征。
The proposed method can be implemented without rotation compensation and is unrestrained for shape of seals. Compared with the Hu moment invariants based seal verification method, the recognition rate of this method is improved greatly. 本文方法不需对印鉴进行配准，对印鉴形状也无要求，与基于hu矩不变量的鉴别方法相比，本文方法的识别率有了较大提高。
The experimental results reveal that the ratio of recognition by AMIs,which achieves 95%,is much superior to that of Hu moment invariants(HMIs). The performance of the proposed method is better than that of HMIs. 试验结果表明:采用仿射不变矩方法的轴心轨迹识别率达到95%25;明显高于Hu氏不变矩的识别率;仿射不变矩具有比Hu氏不变矩更好的轴心轨迹识别能力.
A new method, which uses grey theory and eigenmatrix combined with moment invariants to identify the orbit of shaft centerline of hydroelectric generating set is discussed in this paper. 文中运用灰色系统理论的关联度分析方法，利用不变性矩作为特征向量，对水轮发电机组轴心轨迹的自动识别进行了探讨。
A BP Neural Network Classifier Based on Combined Moment Invariants 基于组合矩不变量特征的BP神经网络分类器
This paper analyses the influence of scale factor on moment invariant features in discrete,constructs a new moment invariant with both scale,translation and rotating invariance. 分析了在离散状态下比例因子对不变矩特征的影响，构造了一种新的不变矩，使其具有平移、旋转和比例因子的不变性。
I couldn't summon up his name at the moment. 此时我无论如何想不起他的名字了。
Do you have any fresh salmon in at the moment? 现在有新鲜大马哈鱼卖吗？
I took to her the moment I met her. 我一见到她就立刻对她产生了好感。
I'd like to speak to you for a moment. 我想和你谈一会儿。
For a moment his life was in jeopardy. 他的生命一度陷入危险中。
Presents a new method of path mechanism synthesis which is based on coupler-angle curves moment invariant and is an improvement on the path synthesis method of planar linkage by coupler-angle curves. 摘要提出了一种新的轨迹机构综合方法，该方法对利用连杆转角曲线综合轨迹机构方法作了较大的改进，提出基于连杆转角曲线不变矩的轨迹机构综合的神经网络方法。
He'll be bursting in upon us at any moment. 他随时可能出现在我们眼前。
You'll have to watch for the right moment. 你得等候适当时机。
A sunset like this shifts its tints every moment. 这样的晚霞颜色是不断变换的。