共查询到20条相似文献,搜索用时 46 毫秒
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本文以品牌印象为自变量,品牌选择为因变量,品牌强度为调节变量,提出假设,构建基础模型,通过对自主品牌汽车品牌印象和品牌强度的调研,推断自主品牌汽车消费者购买意向的影响因素.在收集数据、归纳处理以及模型验证的基础之上,获得下述结论:消费者对自主品牌汽车的品牌选择受到品牌印象和品牌强度的直接正向影响.表明在自主品牌汽车消费... 相似文献
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商务部、发改委等六部委11月23日下发《关于促进我国汽车产品出口持续健康发展的意见》,要求大力实施汽车产品出口战略,扩大具有自主知识产权和自主品牌的汽车产品出口。 相似文献
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不久前,有这样一条消息吸引了众人的眼球:国内首款中外合资企业自主品牌量产轿车"理念S 1"近日在广州下线。"理念S 1"是广汽本田启动自主品牌战略,并通过自身研发、制造出的首款量产车型。"合资"的广汽本田"生下了"一个"自主"的汽车品牌,这略显怪诞的事实,引起人们的注意当在情理之中。 相似文献
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对"自主汽车"这个提法,业界一直颇有争议,因为对于任何汽车品牌的拥有者来说,每个品牌都是自主的。但是,必须以讹传讹的是,"自主汽车"作为中国本土汽车的代名词已经深入人心,很难再换一种称谓了。 相似文献
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提出了一种人脸图像预处理改进算法:将图片转化为灰度图像后进行去噪滤波,根据灰度投影曲线确定人脸的边界,依据确定的眼、嘴以及脸的左右边界这些参数对图像进行剪裁,根据人脸特征的几何关系确定人脸图像的缩放系数,得到标准化图像.解决了传统方法无法适用于侧脸和双眼闭上的人脸的问题. 相似文献
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Face recognition via adaptive image combination 总被引:1,自引:0,他引:1
于威威 《上海交通大学学报(英文版)》2010,15(5):600-603
Dimension reduction and manifold learning are the two most popular feature extraction methods. The two methods focus on spatial
locality as a guiding principle to find a low-dimensional basis for describing high-dimensional data, but no bases or features
are more spatially localized than the original image pixels. So, adaptive image combination is presented to represent a class
by a combined sample. The combined sample is a linear combination of original samples in the same class. Adaptive image combination
(AIC) find the best combination coefficients by minimizing the intrapersonal distance and maximizing the interpersonal distance.
Experimental results show that AIC is effective. 相似文献
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基于颜色和模板匹配的人脸检测 总被引:1,自引:0,他引:1
应用颜色信息探测图像的皮肤颜色区域,然后再用模板对该区域用模板匹配法进行模板匹配.这样无须对整幅图像进行搜索,也不需要对所有的窗口尺寸都匹配一次.从而大大提高了检测速度. 相似文献
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林喜芬 《上海交通大学学报(哲学社会科学版)》2011,19(4)
通过对90起典型误判案件的经验分析,发现转型中国的刑事司法在程序运行方面,具有错误演化的重复性、辩护功能的次要性等异化特征;在证据使用方面,具有证据收集的非法性、证据效果的间接性、证据认定的随意性等异化特征;在权利救济方面,具有救济原因的偶然性、救济渠道的阻滞性、救济方式的博弈性等异化特征。刑事司法程序的异化引发了受害主体的多元性、危害程度的深远性、赔偿救济的有限性等一系列不良后果。而这些异化现象,必须通过制度与条件的双重改进方可缓解。 相似文献
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提出了一种基于仿射运动模型和贝叶斯理论的视频图像人脸检测方法.建立仿射运动模型进行运动估计,提取运动对象区域;对训练图像提取人脸与非人脸的统计特征,利用贝叶斯准则建立概率模型;根据贝叶斯分类器和支持向量机分类器将图像特征分为人脸类与非人脸类,从而检测出视频运动图像中的人脸区域. 相似文献
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改进的PCA人脸识别新算法 总被引:4,自引:0,他引:4
针对经典PCA人脸识别算法受光照条件影响的缺点,本文提出了一种新的改进的PCA人脸识别算法.该算法在图像的预处理阶段,利用图像灰度的线性变换,增大每幅图像的对比度和亮度;对预处理后的图像则利用经典PCA算法进行处理,并在识别阶段,通过对体现光照变化的三个主分量进行加权处理,减少它们在识别中占的比重.实验结果表明,该算法是有效的,能够减少光照条件对人脸识别的影响. 相似文献
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Face hallucination via patch-pairs leaning based methods has been wildly used in the past several years. Some position-patch based face hallucination methods have been proposed to improve the representation power of image patch and obtain the optimal regressive weighted vector. The rationale behind the position-patch based face hallucination is the fact that human face is always highly structured and consequently positioned and it plays an increasingly important role in the reconstruction. However, in the existing position-patch based methods, the probe image patch is usually represented as a linear combination of the corresponding patches of some training images, and the reconstruction residual is usually measured using the vector norm such as 1-norm and 2-norm. Since the vector norms neglect two-dimensional structures inside the residual, the final reconstruction performance is not very satisfactory. To cope with this problem, we present a weighted nuclear-norm constrained sparse coding (WNCSC) model for position-patch based face hallucination. In addition, an efficient algorithm for the WNCSC is developed using the alternating direction method of multipliers (ADMM) and the method of augmented Lagrange multipliers (ALM). The advantages of the proposed model are twofold: in order to fully make use of low-rank structure information of the reconstruction residual, the weighted nuclear norm is applied to measure the residual matrix, which is able to alleviate the bias between input patches and training data, and it is more robust than the Euclidean distance (2-norm); the more flexible selection method for rank components can determine the optimal combination weights and adaptively choose the relevant and nearest hallucinated neighbors. Finally, experimental results prove that the proposed method outperforms the related state-of-the-art methods in both quantitative and visual comparisons. 相似文献