基于块稀疏度与自适应迭代的压缩感知方法

针对分块压缩感知算法在平滑块效应时损失了大量的细节纹理信息,从而影响图像的重构效果问题,提出了一种基于块稀疏信号的压缩感知重构算法。该算法先采用块稀疏度估计对信号的稀疏性做初步估计,通过对块稀疏度进行估算初始化阶段长,运用块矩阵与残差信号最匹配原则来选取支撑块,再运用自适应迭代计算实现对块稀疏信号的重构,较好地解决了浪费存储资源和计算量大的问题。实验结果表明,相比常用压缩感知方法,所提算法能明显减少运算时间,且能有效提高图像重构效果。     

基于网络文本的上海田子坊形象感知分析

网络评论较客观地记录了游客对目的地的感受,为目的地形象感知研究提供新的素材。研究运用Python从各大知名旅游网站获取网络评论文本,对上海田子坊认知形象、情感形象、整体形象、吸引要素、负面评价等几个方面进行分析。结果显示:游客对田子坊的总体感知是以喜欢和肯定为主,对田子坊的弄堂、小店、石库门、酒吧、小巷子等建筑特色的认同感较高,尤其被田子坊的美食所吸引。但吸引要素中,创意要素很少被提及。基本可以判断田子坊从原先的民居与小厂房混杂的状态变身为政府授牌的创意园区,经过十余年的发展已偏离原先的“创意”定位,逐渐演变为“旅游”唱主角的旅游社区。     

Influence of celebrity involvement on place attachment: role of destination image in film tourism

The importance of place attachment in film tourism has been recognized by scholars and practitioners. However, despite its predominance in the destination management industry, several unaddressed issues remain in film tourism. Therefore, this study is conducted to investigate the relationships between celebrity involvement, destination image, and place attachment. Data obtained from 301 purposeful film tourists indicated that celebrity involvement was positively associated with place attachment. Moreover, cognitive image and affective image partially mediated the relationship between celebrity involvement and place attachment. In other words, cognitive image and affective image represent crucial psychological processes that explain how celebrity involvement influences place attachment. Furthermore, compared with the affective image, the cognitive image had a more crucial mediating role in the celebrity fan–film destination attachment relationship. Theoretical and managerial implications are also provided.     

基于图像处理的大蒜蒜种品质无损分级方法研究

针对大蒜蒜种分级过程中蒜种易损坏、机器成本耗费大等问题,提出一种基于图像处理的大蒜蒜种品质无损分级方法。首先对采集到的大蒜蒜种图像进行灰度化、二值化等预处理得到二值化图像。然后在农业工作环境比较恶劣、存在不可避免的噪声情况下,采用形态学处理二值化图像,对图像采用腐蚀算子进行运算,消除噪声,再对图像采用膨胀算子进行运算,得到无噪声的二值化图像。在此基础上通过Canny算子进行有效外轮廓提取并进行旋转矩形拟合,得到最小外接矩形。最小矩形的长和宽比例代替真实蒜种的长宽比作为大蒜蒜种品质筛选的重要依据。实验结果表明,算法可以无损地获取蒜种长和宽的比例,实现大蒜蒜种品质筛选,图像处理过程时间平均为612 ms,满足正常工作实时性要求,在大蒜蒜种品质等级筛选中具有一定的应用价值。     

Korean and conventional medicine tourism industry trends as indicated in medical tourism advertisement images: qualitative research using data from medical Korea 2015

This study analyzed advertisement images targeting international audiences of South Korean medical facilities (traditional Korean and conventional medicine) participating in Medical Korea 2015 using thematic content analysis. The image categories most often used in conventional medicine were medical procedures, facilities, and staff photos, while those for traditional Korean medicine were medical procedures, staff photos, and images. Conventional medicine consistently presented high SERVQUAL tangibility scores, whereas Korean medicine displayed distinct associations between SERVQUAL categories and image size. Analyses suggested specialty preference by language. These findings may be used to recognize key messages in medical tourism and contribute to its systematic promotion.

Abbreviations: KHIDI: Korea health industry development institute; SERVQUAL: service quality     

A structural model to assess international visitors' perceptions about local foods in Tanzania

Interest in the use of local food in tourism and hospitality is growing in both industry and academic circles. Most research on local food has focused on its potential to enhance local community development, while relatively little research has examined the way tourists perceive local foods in developing countries. This study applies image theory to evaluate perceptions of international tourists regarding local foods in Tanzania. Data were collected between June and August, 2014 using a survey method. The study population consisted of 520 international tourists departing from Kilimanjaro International Airport. Data were analyzed using structural equation modeling (SEM) with EQS 6.2. The results demonstrated that cognitive/perceptual and affective evaluations are two interdependent psychological constructs which, taken together, play a key role in understanding individuals’ overall perception about local foods. The cognitive/perceptual evaluations formed by individuals as a result of accumulated knowledge and beliefs about local foods influence the way individuals perceive local foods. Likewise, the affective evaluations (feelings) about local foods significantly influenced individuals’ overall perceptions about local foods. The results also show that many hotels where tourists stayed did not provide sufficient varieties of, or information about, local foods. Recommendations arising from the research relating to food policy and regulation are presented.     

旅游目的地形象、定位及品牌化:概念辨析与关系模型

目的地形象、目的地定位和目的地品牌化是目的地营销研究领域3个非常重要的概念,它们既相互区别又相互联系,通过一定的逻辑链条在目的地营销实践中发挥各自的作用.从理论上探讨三者之间的关系对于目的地营销实践的顺利开展意义重大.本文对这3个概念及其相互联系进行了详细分析,认为3者作用的发挥应遵循"目的地定位一目的地品牌化一目的地形象"这样一种逻辑链条,并构建了3者之间的关系模型.     

基于珠中江一体化的区域旅游形象研究

在珠三角经济急待转型升级的时期,推进"广佛肇"、"深莞惠"、"珠中江"三个次级经济圈的一体化进程,是从珠三角内部进一步优化区域结构,发挥聚集作用的重要工作。本文以"珠中江"次级经济圈为例,通过问卷调查等方法对珠海、中山、江门三市的旅游形象进行比较。在对三市旅游形象内在联系分析的基础上,进行了区域旅游形象的定位,并最终设计了三角营销框架及一系列营销策略。     

遥感图像的目视判读的探讨

熟悉地物在不同波段的光谱特性,了解地物在不同空间分辨率影像上的表现,掌握不同假彩色合成影像的特征,熟练运用遥感影像解译标志与解译方法,是进行判读解译的重要基础.     

郴州市旅游形象设计探讨

旅游目的地形象是吸引游客的重要因素之一.文章探讨了目的地形象策划的基本理论及其对旅游目的地发展的意义,基于目的地形象定位基础理论,以郴州为例,在对郴州旅游形象发展存在问题的诊断基础上,对郴州旅游形象进行了大胆策划,并对郴州旅游形象的传播和推广提出建议.