The transmission of video content over a network raises various issues relating to copyright authenticity,ethics,legality,and privacy.The protection of copyrighted video content is a significant issue in the video ind...The transmission of video content over a network raises various issues relating to copyright authenticity,ethics,legality,and privacy.The protection of copyrighted video content is a significant issue in the video industry,and it is essential to find effective solutions to prevent tampering and modification of digital video content during its transmission through digital media.However,there are stillmany unresolved challenges.This paper aims to address those challenges by proposing a new technique for detectingmoving objects in digital videos,which can help prove the credibility of video content by detecting any fake objects inserted by hackers.The proposed technique involves using two methods,the H.264 and the extraction color features methods,to embed and extract watermarks in video frames.The study tested the performance of the system against various attacks and found it to be robust.The evaluation was done using different metrics such as Peak-Signal-to-Noise Ratio(PSNR),Mean Squared Error(MSE),Structural Similarity Index Measure(SSIM),Bit Correction Ratio(BCR),and Normalized Correlation.The accuracy of identifying moving objects was high,ranging from 96.3%to 98.7%.The system was also able to embed a fragile watermark with a success rate of over 93.65%and had an average capacity of hiding of 78.67.The reconstructed video frames had high quality with a PSNR of at least 65.45 dB and SSIMof over 0.97,making them imperceptible to the human eye.The system also had an acceptable average time difference(T=1.227/s)compared with other state-of-the-art methods.展开更多
网络流媒体播放控件能很大程度地减轻程序开发人员的负担,编程人员只需简单地设置控件的属性就可轻松完成视频的实时播放.基于x264解码代码,在Visual Studio 2008平台下,考虑实际网络状况以及代码复杂性等问题,利用双缓冲循环队列、管...网络流媒体播放控件能很大程度地减轻程序开发人员的负担,编程人员只需简单地设置控件的属性就可轻松完成视频的实时播放.基于x264解码代码,在Visual Studio 2008平台下,考虑实际网络状况以及代码复杂性等问题,利用双缓冲循环队列、管道通信等技术,构建了一个完整的H.264流媒体播放路径,整合成一个参数可配置、功能丰富的流媒体播放控件.该控件结构清晰,配置灵活,功能丰富,使用方便.展开更多
文摘The transmission of video content over a network raises various issues relating to copyright authenticity,ethics,legality,and privacy.The protection of copyrighted video content is a significant issue in the video industry,and it is essential to find effective solutions to prevent tampering and modification of digital video content during its transmission through digital media.However,there are stillmany unresolved challenges.This paper aims to address those challenges by proposing a new technique for detectingmoving objects in digital videos,which can help prove the credibility of video content by detecting any fake objects inserted by hackers.The proposed technique involves using two methods,the H.264 and the extraction color features methods,to embed and extract watermarks in video frames.The study tested the performance of the system against various attacks and found it to be robust.The evaluation was done using different metrics such as Peak-Signal-to-Noise Ratio(PSNR),Mean Squared Error(MSE),Structural Similarity Index Measure(SSIM),Bit Correction Ratio(BCR),and Normalized Correlation.The accuracy of identifying moving objects was high,ranging from 96.3%to 98.7%.The system was also able to embed a fragile watermark with a success rate of over 93.65%and had an average capacity of hiding of 78.67.The reconstructed video frames had high quality with a PSNR of at least 65.45 dB and SSIMof over 0.97,making them imperceptible to the human eye.The system also had an acceptable average time difference(T=1.227/s)compared with other state-of-the-art methods.
文摘网络流媒体播放控件能很大程度地减轻程序开发人员的负担,编程人员只需简单地设置控件的属性就可轻松完成视频的实时播放.基于x264解码代码,在Visual Studio 2008平台下,考虑实际网络状况以及代码复杂性等问题,利用双缓冲循环队列、管道通信等技术,构建了一个完整的H.264流媒体播放路径,整合成一个参数可配置、功能丰富的流媒体播放控件.该控件结构清晰,配置灵活,功能丰富,使用方便.
