共查询到19条相似文献,搜索用时 953 毫秒
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针对海南气象影视广告业现状和存在问题,分析了海南气象影视广告媒体的优劣势,并提出了相应的解决方法和经营策略,从而推动气象影视广告业不断创新发展。 相似文献
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目前,随着电视气象节目的不断普及和发展,气象事业对外影响力的日益提高,气象广告业方兴未艾,气象影视信息资料不断地积累并迅速扩大,面对这种发展趋势,对影视多媒体资源的储存及管理就显得尤为迫切和重要,如何借助现有的一些技术方法或手段并结合气象专业领域的特点进行信息化管理具有一定的现实意义,本仅对气象多媒体资源信息的管理方法在技术上作一些探讨。 相似文献
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气象影视现状分析及影视服务能力提高的若干思考 总被引:1,自引:0,他引:1
王珉 《沙漠与绿洲气象(新疆气象)》2009,3(Z1)
气象影视服务是公共气象服务体系中的重要组成部分,通过电视媒体及时向社会公众发布气象灾害预报预警信息,是防灾减灾、服务大众的有效途径.气象影视事业的快速发展,给气象电视节目提出了更高要求.本文从阿克苏地区气象影视现状入手,重点分析我区气象影视专业服务中存在的问题,从部门横向合作、节目创新、素材的优化与组合、网络传输等方面提出解决问题的思路和方法,以提高地区气象影视服务水平和能力. 相似文献
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从培育并不断增强电视气象广告业市场竞争力的实际需要出发,指出了当前电视气象广告业发展中存在的运行管理体制缺乏创新、分散经营模式弊端突出、电视气象广告效果难有起色等诸多问题;针对这些问题,从理论和实践两方面进行了简要分析,并提出了相应的解决措施。 相似文献
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气象影视服务是公共气象服务体系中的重要组成部分,通过各种媒体及时向社会公众发布气象灾害预报预警信息,是防灾减灾、服务大众的有效途径。而气象影视事业的快速发展,给气象电视节目提出了更高要求。文章从三个方面入手,对气象影视如何更好的服务于大众进行分析,从部门横向合作、节目创新、素材的优化与组合、网络传输等方面提出解决问题的思路和方法,以提高气象影视服务的水平和能力。 相似文献
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分析了新形势下气象影视服务面临的社会经济发展、影视技术进步和广电部门改革、社会公众要求提高等方面的主要背景,提出了气象影视服务在未来一段时期要强化社会公共服务的功能和加强气象影视频道建设的主要任务,明确了进一步推动气象影视服务发展的政策措施。 相似文献
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DVD技术在气象影视素材库建设中的应用 总被引:2,自引:0,他引:2
分析了如何将高品质DVD制作技术应用到省级气象影视素材库建设中的方法,以及充分利用DVD的高画质、多音轨、多字幕等相关制作技术为气象影视工作服务的技巧。 相似文献
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刘波 《南京气象学院学报》2020,12(3):274-278
近年来,随着计算机技术的发展和终端设备的广泛使用,视频摘要技术得到了广泛的研究.视频摘要是数据摘要的重要研究方向.首先介绍了静态视频摘要的基本概念,然后对研究静态视频摘要的凸松驰方法和行列式点过程法的最新研究进展进行了概述.对于动态视频摘要,主要对分割视频和个性化视频摘要的最新研究进展进行了介绍.最后对视频摘要面临的问题以及将来的研究方向进行了介绍. 相似文献
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Stacy A. Fleenor Christopher J. Biagi Kenneth L. Cummins E. Philip Krider Xuan-Min Shao 《Atmospheric Research》2009,91(2-4):333-352
In July 2005, a field campaign was conducted in the Central Great Plains to obtain 60-field/s video imagery of lightning in correlation with reports from the U.S. National Lightning Detection Network (NLDN) and broadband electric field waveforms from the Los Alamos Sferic Array (LASA). A total of 342 GPS time-stamped cloud-to-ground (CG) flashes were recorded in 17 different sessions, and 311 (91%) of these were correlated with reports from the NLDN. Only 6 of the 17 recording sessions were dominated by flashes that lowered negative charge to ground, and 11 were dominated by positive CG flashes. A total of 103 flashes recorded on video were correlated with at least one NLDN report of negative CG strokes, 204 video flashes were correlated with one or two positive stroke reports, and 4 had bipolar reports. In this paper, we will give distributions of the estimated peak current, Ip, as reported by the NLDN, of negative and positive first strokes that were recorded on video, the multiplicity of strokes that were recorded on video, and the number of ground contacts per flash that were resolved on video. 41 (40%) of the negative flashes produced just a single-stroke on video, and 62 (60%) showed two or more strokes. The observed multiplicity of negative flashes averaged 2.83, which becomes about 3.14 after correcting for the finite time-resolution of the video camera. 195 (96%) of the positive flashes produced just a single-stroke on video, and 9 (4%) showed two strokes; therefore, the observed multiplicity of positive flashes averaged 1.04. Five out of 9 (56%) of the positive subsequent strokes re-illuminated a previous channel, and 4 out of 9 (44%) created a new ground contact. Simultaneous video, LASA, and NLDN measurements also allowed us to examine the classification of NLDN reports during 3 single-cell storms (one negative and two positive). Based on the LASA waveforms, a total of 204 out of 376 (54%) NLDN reports of CG strokes were determined to be for cloud pulses. The misclassified negative reports had |Ip| values ranging from 3.8 kA to 29.7 kA, but only 58 (24%) of these had |Ip| > 10 kA, and only one misclassified positive report had Ip > 20 kA. Radar analyses showed that most of the negative and positive CG strokes that were recorded on video were produced within or near the convective cores of storms. The radar imagery also showed that single-cell storms tended to produce one polarity of CG flashes at a time, and that such storms could switch rapidly from negative to positive CG flashes when the reflectivity was near maximum. Multiple-cell storms produced both negative and positive flashes over a broad region, but each polarity tended to cluster near regions of high-reflectivity. 相似文献
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针对视频序列中人体动作识别存在信息冗余大、准确率低的问题,提出基于关键帧的双流卷积网络的人体动作识别方法.该方法构建了由特征提取、关键帧提取和时空特征融合3个模块构成的网络框架.首先将空间域视频的单帧RGB图像和时间域多帧叠加后的光流图像作为输入,送入VGG16网络模型,提取视频的深度特征;其次提取视频的关键帧,通过不断预测每个视频帧的重要性,选取有足够信息的有用帧并汇聚起来送入神经网络进行训练,选出关键帧并丢弃冗余帧;最后将两个模型的Softmax输出加权融合作为输出结果,得到一个多模型融合的人体动作识别器,实现了对视频的关键帧处理和对动作的时空信息的充分利用.在UCF-101公开数据集上的实验结果表明,与当前人体动作识别的主流方法相比,该方法具有较高的识别率,并且相对降低了网络的复杂度. 相似文献
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文章提出并实现了一种基于现有硬件视频会商/会议系统的在线可控的远程监控功能。通过和鼎视通技术人员合作,利用DST视频终端,通过B/S的方式,依托高可靠的音频、视频处理技术,以"全程全网全视频"系统为嵌入点,开发并实现了远程实时监控功能。用户可以通过身份认证和优先级别授权使用该系统,实现对远程站点的实时监控。 相似文献