基于TMS320C6414的多DSP实时图像处理系统的设计与实现

提出并实现了基于TI的TMS320C6414多DSP的实时图像处理系统。该系统采用模块化设计和多总线结构，并且使用FPGA设计了一种LINK口作为系统的专用图像传输通道。通过该通道使得DSP之间的数据传输速度可以达到3.2Gbit/s。使用DSP的McBSP构成命令通道，用以传输DSP之间的命令消息。通过这两种通道，既可以实现点对点的通信，也可以实现广播方式的通信，并且使该系统具有极强的可扩展性，还可以实现拓扑结构的动态可重构。系统可以根据图像处理算法并行化结构的改变，通过编程实现流水线、SPMD或MPMD结构，以得到较高的并行化效率。     

Roles of Sexual Objectification Experiences and Internalization of Standards of Beauty in Eating Disorder Symptomatology: A Test and Extension of Objectification Theory.

This study extends the literature on eating disorder symptomatology by testing, based on extant literature on objectification theory (B. L. Fredrickson & T. Roberts, 1997) and the role of sociocultural standards of beauty (e.g., L. J. Heinberg, J. K. Thompson, & S. Stormer, 1995), a model that examines (a) links of reported sexual objectification experiences to eating disorder-related variables and (b) the mediating roles of body surveillance, body shame, and internalization of sociocultural standards of beauty. Consistent with hypotheses, with a sample of 221 young women, support was found for a model in which (a) internalization of sociocultural standards of beauty mediated the links of sexual objectification experiences to body surveillance, body shame, and eating disorder symptoms, (b) body surveillance was an additional mediator of the link of reported sexual objectification experiences to body shame, and (c) body shame mediated the links of internalization and body surveillance to disordered eating. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一种足球机器人色标识别方法

以足球机器人视觉系统为研究对象,提出了一套基于颜色信息的色标识别方法。在假设颜色样本图像中存在唯一主色的条件下,提出了排异聚类主色提取算法,该算法适合足球机器人视觉系统的色标颜色提取过程,具有抑制噪声和保持主要颜色信息的能力。基于颜色相似系数判定图像中待识别像素颜色与样本颜色之间的相似性。采用网格搜索方法实现色标的搜索过程。通过形态学滤波方法对色标预分割结果进行后处理。实验结果表明,该方法具有较理想的彩色色标识别效果。     

数字影像分辨率的均衡匹配

分辨率的匹配与均衡是数字影像高质量表现的关键。均衡匹配的方法是根据应用需要倒推获取加工该采用的分辨率以及辅之以必要的插值处理。确认输出设备是连续色调的还是非连续色调的，对分辨率的均衡至关重要。     

影像的柔化

影像的柔化可使人像变得更漂亮，使人像的脸面皱纹减轻甚至消失，皮肤变得光滑滋润，因而显得年轻、亮丽。对于风景图像，有时也需要获得较柔和的影调，使图像的层次更为丰富多彩。影像的柔化有多种方法如：拍摄时采用柔焦镜头或柔光镜，后期加工时进行加柔措施等等。本文对这些方法进行了介绍和优缺点比较。     

高频振动方向和振幅测量的模糊图像处理方法

根据振动模糊图像和静止图像在频谱上存在的对应关系,即振动模糊图像频谱存在着对应于零阶贝塞尔函数零点的暗纹(贝塞尔条纹);提出对一幅振动模糊图像,经过二维傅里叶变换、灰度均衡以及Radon变换等步骤检测振动模糊图像频谱图上贝塞尔条纹的方向和位置,来实现振动方向和振幅测量的方法;试验证明可以实现平面内任意方向振动的测量,振幅测量精度亚像素级。     

一种实用的夜间航空图像增强算法

夜间航空图像的增强处理是图像处理的一项重要内容。本文提出了一种能用硬件实现的夜间航空图像增强算法，视觉效果改善明显，更适合于人眼观察和判读，是一个实用性很强的算法。     

数字文字设计中的象征性分析

数字作为一种特殊的文字,已成为视觉设计中一个重要的表现元素.通过对数字文字设计中的寓意、造型、色彩等3个方面进行分析,就其设计中的象征性表现做了一个简要的论述.     

Real object recognition using moment invariants

Moments and functions of moments have been extensively employed as invariant global features of images in pattern recognition. In this study, a flexible recognition system that can compute the good features for high classification of 3-D real objects is investigated. For object recognition, regardless of orientation, size and position, feature vectors are computed with the help of nonlinear moment invariant functions. Representations of objects using two-dimensional images that are taken from different angles of view are the main features leading us to our objective. After efficient feature extraction, the main focus of this study, the recognition performance of classifiers in conjunction with moment-based feature sets, is introduced     

Comparison of Particle Size Distributions Measured Using Different Techniques

In this article, particle size distributions (PSDs) measured by different techniques, including image analysis (IA), laser diffraction (LD), ultrasonic attenuation spectroscopy (UAS), and focused-beam reflectance measurement (FBRM), are compared for spherical glass beads and nonspherical silica flakes. It is shown that particle shape strongly affects the results obtained by different techniques. For spheres, the PSDs obtained by IA, LD, and UAS agree well. There is no consistent result among different particle measurement techniques for nonspherical particles. The conversion between PSDs obtained by IA, LD, and UAS has been based on particle shape factors. Caution must be exercised when a measured chord length distribution (CLD) is used to indicate the PSD during a process because the CLD result obtained by FBRM is complex, depending not only on the PSD, but also on particle optical properties and shape.