TN948.41 94064030微光图像信噪比自动测试与分析系统=Automatictesting and analysing system of the low lightlevel image SNR[刊,中]/柏连发,周建勋,张保民(南京理工大学.江苏,南京(210014))//红外技术.—1994,16(2).—21—24视频...TN948.41 94064030微光图像信噪比自动测试与分析系统=Automatictesting and analysing system of the low lightlevel image SNR[刊,中]/柏连发,周建勋,张保民(南京理工大学.江苏,南京(210014))//红外技术.—1994,16(2).—21—24视频信噪比(SNR)展开更多
TN941.1 2004010507 电视跟踪系统视频信噪比测试研究=Study of testingvideo signal to noise ratio of television tracking system[刊,中]/孙玉杰(军械工程学院光学工程教研室.河北,石家庄(050003)),汪岳峰…∥光电子·激光.—20...TN941.1 2004010507 电视跟踪系统视频信噪比测试研究=Study of testingvideo signal to noise ratio of television tracking system[刊,中]/孙玉杰(军械工程学院光学工程教研室.河北,石家庄(050003)),汪岳峰…∥光电子·激光.—2003,14(4).展开更多
In order to improve the video quality of transmission with data loss,a spatial and temporal error concealment method was proposed,which considered both the state information of the network and the perceptual weight of...In order to improve the video quality of transmission with data loss,a spatial and temporal error concealment method was proposed,which considered both the state information of the network and the perceptual weight of the video content.The proposed method dynamically changed the reliability weight of the neighboring macroblock,which was used to conceal the lost macroblocks according to the packet loss rate of the current channel state.The perceptual weight map was utilized as side information to do weighted pixel interpolation and side-match based motion compensation for spatial and temporal error concealment,respectively.And the perceptual weight of the neighboring macroblocks was adaptively modified according to the perceptual weight of the lost macroblocks.Compared with the method used in H.264 joint model,experiment results show that the proposed method performs well both in subjective video quality and objective video quality,and increases the average peak signal-to-noise ratio(PSNR) of the whole frame by about 0.4 dB when the video bitstreams are transmitted with packets loss.展开更多
文摘TN948.41 94064030微光图像信噪比自动测试与分析系统=Automatictesting and analysing system of the low lightlevel image SNR[刊,中]/柏连发,周建勋,张保民(南京理工大学.江苏,南京(210014))//红外技术.—1994,16(2).—21—24视频信噪比(SNR)
文摘TN941.1 2004010507 电视跟踪系统视频信噪比测试研究=Study of testingvideo signal to noise ratio of television tracking system[刊,中]/孙玉杰(军械工程学院光学工程教研室.河北,石家庄(050003)),汪岳峰…∥光电子·激光.—2003,14(4).
基金Project(2006C11200) supported by the Science and Technology Project of Zhejiang Province of China
文摘In order to improve the video quality of transmission with data loss,a spatial and temporal error concealment method was proposed,which considered both the state information of the network and the perceptual weight of the video content.The proposed method dynamically changed the reliability weight of the neighboring macroblock,which was used to conceal the lost macroblocks according to the packet loss rate of the current channel state.The perceptual weight map was utilized as side information to do weighted pixel interpolation and side-match based motion compensation for spatial and temporal error concealment,respectively.And the perceptual weight of the neighboring macroblocks was adaptively modified according to the perceptual weight of the lost macroblocks.Compared with the method used in H.264 joint model,experiment results show that the proposed method performs well both in subjective video quality and objective video quality,and increases the average peak signal-to-noise ratio(PSNR) of the whole frame by about 0.4 dB when the video bitstreams are transmitted with packets loss.
