谈网络视频流媒体技术   总被引：1，自引：0，他引：1  

智莹 《鞍山师范学院学报》2004,6(4):59-61

多媒体信息在网上的传输越来越重要,流式技术以其边下载边播放的特性深受教育、娱乐等行业的喜爱,本文主要描述流媒体系统及主要的流式技术,提出了流式技术的主要解决方案.  相似文献   

Internet Fantasy Violence: A Test of Aggression in an Online Game     

《Communication monographs》2012,79(2):217-233

Research on violent video games suggests that play leads to aggressive behavior. A longitudinal study of an online violent video game with a control group tested for changes in aggressive cognitions and behaviors. The findings did not support the assertion that a violent game will cause substantial increases in real-world aggression. The findings are presented and discussed, along with their implications for research and policy.  相似文献   

中小城市公交视频的发展研究     

沈敏善 《贵阳学院学报(自然科学版)》2012,7(3)

经过多年的发展,公交视频已然成为城市生活的一部分。在公交车的封闭性空间里,公交视频的强迫传播受到了广告主的认可和青睐。然而,当大城市公交视频转身为公交电视的时候,中小城市的公交视频仍然在固步自封,徘徊不前,在他们那里赢利与服务仿佛是＂鱼和熊掌＂不可兼得。  相似文献   

高职影视鉴赏选修课程学生创新能力培养研究与实践     

申长崴 《鸡西大学学报》2012,12(4):14-15

高职影视鉴赏选修课程为学生想象力、创造力、艺术感悟力、综合分析与表达能力的发展提供了实践平台。力求在明确学生创新能力和创新能力培养原则的基础上,探讨影视鉴赏选修课程学生创新能力培养的实施路径。从"习、赏、感、研、作"联动培养模式入手,坚持知识、能力、素质的辩证统一,在课堂教学、课外鉴赏、社团辅助、鉴赏批评、创作实践这五方面全面提升课程教学与实践,进而实现提升学生创新能力培养的目的。  相似文献   

“You Don't Play,You Volunteer”: Narrative Public Memory Construction in Medal of Honor: Rising Sun     

Aaron Hess 《Critical Studies in Media Communication》2013,30(4):339-356

Narrative and ludological analysis suggests that Electronic Arts’ Medal of Honor: Rising Sun constructs a narrative of World War II that selectively retells history and constructs an Orientalist representation of the Japanese Empire. The gaming environment exists as an interactive museum that immerses gamers into history so that they experience warfare in their homes. Combining newsreels, fictional letters from home, and interviews with veterans of the “Good War,” Medal of Honor: Rising Sun retells a history that omits details of Japanese internment or atomic weapons. The intertwined themes of personal revenge for the loss of a family member and historical revenge for the attack on Pearl Harbor guide gamers through an “educational” experience of the war. Finally, its failure to simulate violence means that Medal of Honor: Rising Sun invites a critical blindness to commemorating war.  相似文献   

Priming Stereotypical Associations: Violent Video Games and African American Depictions     

Vincent Cicchirillo 《Communication Research Reports》2013,30(2):122-131

The following study examines the influence of racial representations in violent video games upon stereotype associations. Participants were assigned to play either a violent video game with a stereotypical African American avatar or a Caucasian avatar. Following game play, participants completed several measures related to aggression and an implicit association task. The results showed significant differences between the conditions for IAT response times. African American participants showed faster response times to stereotype associations of African Americans than participants who played as a Caucasian avatar. The results also showed a significant interaction effect between participant race and avatar race for aggressive affect.  相似文献   

Challenges and Support When Teaching Science Through an Integrated Inquiry and Literacy Approach     

Marianne Ødegaard  Berit Haug  Sonja M. Mork  Gard Ove Sørvik 《International Journal of Science Education》2013,35(18):2997-3020

In the Budding Science and Literacy project, we explored how working with an integrated inquiry-based science and literacy approach may challenge and support the teaching and learning of science at the classroom level. By studying the inter-relationship between multiple learning modalities and phases of inquiry, we wished to illuminate possible dynamics between science inquiry and literacy in an integrated science approach. Six teachers and their students were recruited from a professional development course for the current classroom study. The teachers were to try out the Budding Science teaching model. This paper presents an overall video analysis of our material demonstrating variations and patterns of inquiry-based science and literacy activities. Our analysis revealed that multiple learning modalities (read it, write it, do it, and talk it) are used in the integrated approach; oral activities dominate. The inquiry phases shifted throughout the students' investigations, but the consolidating phases of discussion and communication were given less space. The data phase of inquiry seems essential as a driving force for engaging in science learning in consolidating situations. The multiple learning modalities were integrated in all inquiry phases, but to a greater extent in preparation and data. Our results indicate that literacy activities embedded in science inquiry provide support for teaching and learning science; however, the greatest challenge for teachers is to find the time and courage to exploit the discussion and communication phases to consolidate the students' conceptual learning.  相似文献   

一种基于视频的DEW水印算法     

谢斌  钟文涛  涂荣强 《科技广场》2008,(1):117-119

采用差分能量水印(DEW)算法,对视频数字作品进行了数字水印的嵌入、检测和提取研究。实验结果表明,该算法计算简单、速度快、易于实现,视频信号里可编码的数据量大,可以隐藏较多的信息,并且还可以满足水印的实时嵌入和提取。  相似文献   

结合DirectShow技术基于B/S架构的住宅小区视频监控平台设计     

邓华 《人天科学研究》2009,(11)

介绍了一种结合DirectShow技术的基于B/S架构的住宅小区视频监控平台的设计方案。该平台由监控端、服务器端和浏览器端组成,可实现多路监控、视频录像及回放和定点监控缩放等功能,且不需要安装额外的客户端软件和解码器,有效地提高了平台监控的集中管理效率和用户使用的便捷性。  相似文献   

H.264在网络视频监控系统中的应用研究     

肖吉军  ;陈利学 《人天科学研究》2009,(6)

由于具有压缩率高、图像失真率低、网络适应性强的特点,H.264已经成为网络视频监控系统应用研究中的热门。针对视频压缩效率和实时传输之间的矛盾,以及视频图像质量要求的提高,根据H.264和网络监控系统的技术原理,分析了H.264在网络视频监控系统中的应用优势和可行性,旨在提出一套基于H.264的网络监控系统解决方案。  相似文献