Labels are printed pieces of paper, film, polymer, or other materials affixed to a product or imprinted on the package or the body of a product that provide important information about the product and the company. There are many labels with different features available in the market, such as pressure-sensitive, in-mold, and heat-shrink labels. Often the terms "packaging" and "labeling" are used together as each package has a label. Hence, several manufacturers in this market are also engaged in the production of packaging products to meet increasing consumer needs. Digital labels are currently gaining popularity in many retail outlets. Many new products launched by vendors are causing players to adapt technologically advanced labels, which is positively influencing the growth of the market.

Professional camcorders are electronic devices used to record videos for commercial purposes such as making movies and documentaries, for occasions such as weddings and festivals, and for the broadcast of sports and music events. The primary difference between consumer camcorders and professional camcorders lies in the quality of lenses used. Professional camcorders allow the use of lenses with focal length of 35 mm or more; the higher the quality of lens, the greater is the clarity of image captured by the camera. Professional camcorders can be used for various types of photography including landscape, portrait, sports, wildlife, street, and documentary.

Surveillance and security equipment are used to monitor the activities and behavior of people in certain areas such as enterprises, airports, seaports, railway stations, educational institutions, retail stores, and banks that are prone to terrorist activities and data thefts. Appropriate surveillance in these areas can help reduce occurrences of a number of terrorist activities and instances of data theft. The data captured by surveillance equipment are transmitted and stored for future use. Monitors are installed at end-points to look at footage and analyze any unusual behavior of individuals. Installation of surveillance devices at various sensitive areas can reduce the need for security personnel.

The Asia-Pacific mobile market remained the fastest growing globally over the last six months, with the number of connections more than double those of any other region.

高阶QAM(Quadrature Amplitude Modulation)调制是提高频谱效率的一个有效途径,但它对相位偏差容忍度较差.文章提出了一种异步双层QAM调制方法,可在发射端用较低的调制阶数实现和传统高阶QAM调制相当的频谱效率,并分别针对提出的异步双层QAM调制和传统QAM调制,推导了平坦瑞利块衰落信道下固定相位偏差的误符号率闭合解析表达式.理论分析与计算机仿真结果吻合,研究表明,误符号率为10-1时,异步双层256-QAM调制在相位偏差为0.9度的误符号率性能与无相位偏差情况比较,差异仅为0.3d B;而传统高阶4096-QAM调制的差异为11d B.

通过互联网易获得同一对象的多个无约束的观测样本,针对如何解决无约束观测样本带来的识别困难及充分利用多观测样本数据信息提高其分类性能问题,提出基于低秩分解的联合动态稀疏表示多观测样本分类算法.该算法首先寻找到一组最佳的图像变换域,使得变换图像可以分解成一个低秩矩阵和一个相关的稀疏误差矩阵;然后对低秩矩阵和稀疏误差矩阵分别进行联合动态稀疏表示,以便充分利用类级的相关性和原子级的差异性,即使多观测样本的稀疏表示向量在类级别上分享相同的稀疏模型,而在原子级上采用不同的稀疏模型;最后利用总的稀疏重建误差进行类别判决.在CMU-PIE人脸数据库、ETH-80物体识别数据库、USPS手写体数字数据库和UMIST人脸数据库上进行对比实验,实验结果表明本方法的优越性.

针对现有彩色图像形态学矢量排序算法的缺点,将基于图的二值及灰度形态学扩展到彩色图像,在具备完备格的图空间上定义一种新的彩色矢量形态学算子.为使新算子便于实现,结合图论定义最小生成矢量子图函数及相关理论,并在此基础上提出彩色矢量形态学极值提取算法.实验结果表明,该算子在保存彩色信息的完整及关联性方面优于现有的彩色形态学,避免出现“假色”现象及人为决定主导颜色分量的缺点,同时有效地保护了原图像的纹理不发生较大的变化,较好的保存图像的拓扑结构,有较广的应用前景.

为了克服现有目标高度补偿算法存在的模型假设不合理、实际应用效果难以保证等问题,本文以目标恒海拔等速运动为前提,利用协同单元提供的目标指示信息,对两坐标雷达的空间目标跟踪问题重新进行了研究.首先根据不同坐标系间的转换关系,构建了目标高度的准确表达式.然后通过恒等变换和合理的近似,得到了目标高度的估计公式,并利用绝对值不等式和柯西-施瓦茨不等式,推导得到了高度估计公式的误差.最后联合目标高度估计公式和两坐标雷达的缺维量测方程,采用扩展卡尔曼滤波方法,实现了目标空间状态的估计.仿真结果表明:本文算法可有效地对目标高度进行补偿,获得稳定、可靠的目标空间状态估计,从而为两坐标雷达目标空间状态估计问题提供了相对有效完善的解决方法.