基于Aptina ASX340的倒车影像系统设计与实现

为了避免倒车过程中因视觉盲区可能出现的安全隐患问题[1][2],文章采用飞思卡尔单片机做主机,Aptina图像传感器ASX340[3]做从机,利用ASX340内部的OVERLAY位图叠加系统,设计了一种能够将倒车过程中实时的车辆尾部的影像,距离障碍物的安全距离,倒车轨迹路径等信息提供驾驶员倒车影像系统[9][10]。使用HYRes3_1、Imatest软件[4]测量了影像图像质量的主要因素。测量结果表明成像质量能够满足目前车厂的要求。     

一种SAR与可见光图像压缩感知融合增强方法

针对机载多传感器成像战场态势感知的问题，提出了一种合成孔径雷达(Synthetic Aperture Radar，SAR)与可见光图像压缩感知融合增强方法。该方法首先对SAR与可见光图像分别进行压缩感知测量，得到压缩测量值，然后通过基于局部权值的融合方法实现对压缩测量值的融合，再利用有序度最优分割法提取SAR图像的强散射目标，最后对融合测量值重建得到初步融合图像，初步融合图像通过目标对比度增强得到最终融合图像。对多组图像进行了仿真分析，视觉及数值结果表明该方法能显著增强融合图像的目标对比度，提升了图像纹理清晰度，较大程度降低了图像融合过程中的数据计算量。     

Exploring the green image of airlines: Passenger perceptions and airline choice

During the last few years there has been an increasing trend for companies to market their products or services as green or environmentally friendly as part of their corporate social responsibility. Few studies have analyzed the effects of this recent focus on the environment and its impact on airline passengers. Therefore, we examine passengers' general attitudes towards the green image of different airlines, perceived differences in eco-friendliness among these airlines, and effects on airline choice during booking. We also investigate how passengers' recent experiences with an airline affect perceived eco-friendliness of that airline. In addition we compare passenger ratings of airline eco-friendliness to those published by independent 3rd parties. Our findings show that the green image of airlines does influence airline choice during booking. We observed a passenger willingness to pay extra for a green image, however, not as much as their willingness to pay extra for amenities, such as additional legroom.     

Eco-positioning of airlines: Perception versus actual performance

To date there has been little research in air transport into the eco-positioning of airlines, that is, their environmental image relative to other airlines and how actual environmental performance relates to this eco-positioning. This paper identifies the environmental perceptions that passengers hold of twelve airlines and relates these perceptions to airlines' actual environmental performance, using load factors, aircraft age and the atmosfair Airline index as proxies for environmental performance. Based on a survey of over 600 passengers at Liverpool John Lennon Airport, the research analyses air travellers' perception of airlines from an environmental perspective. The results show that while there are significant differences in people's environmental perception of airlines, the eco-positioning of the airlines is not correlated to their actual environmental performance. The results support previous research findings in other industries that in many cases actual performance is less important than communicating environmental messages to the public in creating a superior eco-positioning.     

利用改进特征金字塔模型的SAR图像多目标船舶检测

深度学习模型中的特征金字塔网络（Feature Pyramid Network，FPN）常被用作合成孔径雷达（Synthetic Aperture Radar，SAR）图像中多目标船舶的检测。针对复杂场景下多目标船舶检测问题，提出了一种基于改进锚点框的FPN模型。首先将特征金字塔模型嵌入传统的RPN（Region Proposal Network）并映射成新的特征空间用于目标检测，然后利用基于形状相似度距离（Shape Similar Distance,SSD）度量的Kmeans聚类算法优化FPN的初始锚点框，并使用SAR船舶数据集测试。实验结果表明，所提算法目标检测精确率达到98.62%，在复杂场景下与YOLO、Faster RCNN、FPN based on VGG/ResNet等模型进行对比，模型准确率提高，整体性能更好。     

基于小波变换的图像处理综述

小波分析主要广泛应用在科学研究和工程技术中。虽然在现阶段的小波理论相对成熟,近些年关于小波理论的应用和研究也在不断的发展和更新。小波变化在图像处理领域中的应用也囊括图像与处理的所有方面。本文通过介绍小波变换的起源,将小波应用在图像处理中的压缩、还原图像、边缘检测和图像分割,宏观剖析小波的研究现状历史、发展动向及优势。     

Social Networking the Brand—An Exploration of the Drivers of Brand Image in the South African Beer Market

Social network marketing has risen to the fore as an innovative and cost effective method of reaching a target audience. However, owing to the recentness of this marketing technique, there is little scholarly research in this area, especially in emerging markets. This study considered the impact of interactivity and media richness on brand attitude and brand image in the South African beer market. It also tested whether brand involvement has a moderating effect in this regard. The empirical work was conducted through an electronic survey of Facebook fan page users. The results revealed that interactivity had a positive effect on brand attitude, whilst media richness did not. Brand involvement, tested for a moderating effect on the above relationships, was not found to be significant. As expected, brand attitude was found to be strongly linked to brand image in this context. The findings stress the importance of bidirectional communication in favor of media rich design. This suggests that marketers of beer would be well advised to engage with customers on fan pages in routinely responding to their comments and allowing them to upload suitable content. If consumers feel that they have ‘ownership’ of these pages and are able to have a positive influence on brand evolution, fan pages are likely to yield positive results in social media campaigns.     

Managing a Global Retail Brand in Different Markets: Meta-Analyses of Customer Responses to Service Encounters

This study investigates how retailers can leverage their brand to shape customers’ satisfaction with service encounters. It develops and tests hypotheses about how brand, store, and consumer factors moderate customer responses to experience clues during retail service encounters. Six meta-regression analyses synthesize and compare results from 842 satisfaction equations describing customers’ encounters with a global retailer operating 400 stores in 32 countries. The results show how customers weigh their perceptions of service encounters differently depending on brand, store, and consumer factors. In markets where customers believe the retailer has high holistic brand quality, they place less weight on experience clues within the store. In markets where customers believe the retailer’s service brand promise, they place more weight on in-store experience clues. In markets where the retailer promises utilitarian value, customers weigh functional experience clues more heavily. In markets with an online purchasing channel, the effect of experience clues common to offline and online store environments is magnified, and unique clues are diminished. In addition, customers heavily weigh experience clues that fit their goals. In general, retail success factors include high brand quality (which makes customers more forgiving), a service brand promise that is mirrored in the store image (which makes customers attend to the experience clues aligned with them), and the careful monitoring and managing of retail touchpoints (to customize experience clues to each market). In this way, retailers can use customer-based strategies to effectively design and manage their global retail brand in different markets.     

Price image consequences

This study investigates the consequences of price image. Two conditions, a policy of intermediate price condition and a policy of low price condition, were distinguished in an experiment. Three moderators (consumers' price conscientiousness, retailer's motives perceived by consumers and consumers' familiarity with the retailer) were considered for these two conditions. Using partial least squares analyses (PLS), we propose integrated models of the consequences of price image highlighting the direct and indirect effects of this concept on consumers' satisfaction, trust, attitude and future behavioral intentions to the retailer. This research fills a gap in the literature since previous studies have mainly focused on the antecedents of price image or have only investigated specific links between the variables considered. Finally, considering our findings, we recommend to managers to favor either a policy of intermediate or low price depending of their consumers' characteristics.     

Predictors and effects of retail brand equity – A cross-sectoral analysis

Although retailers increasingly seek to position themselves as strong, attractive, and unique brands, little is known about differences in retail branding among different retail sectors. This study analyzes the importance of perceived retail attributes for consumer-based retail brand equity (RBE), particularly the varying roles of these attributes in important retail sectors, and the effects of RBE on intentional loyalty. The authors examine empirical data on 2112 consumer evaluations of retail firms in the grocery, fashion, electronics, and DIY sectors and apply multi-group structural equation modeling. The results indicate that the importance of retail attributes for RBE varies among the different sectors, but a strong and stable link between RBE and consumers' intentional loyalty is evident across retail sectors. The sector-specific and cross-sectoral observations in this study provide managers with specific knowledge on the main levers of RBE in different retail contexts.