ID |
原文 |
译文 |
40356 |
针对视频多屏显示系统无法依据分屏数量进行超高清视频自适应分屏传输的问题,提出了异构多核的视频流传输方法。 |
In order to solve the problem that the multi-screen video display system cannot adapt to the multi-screen transmission of ultra-high-definition(UHD)video according to the number of split screens, a heterogeneous multi-core video streaming transmission method is proposed. |
40357 |
该方法首先采用基于ARM处理器的嵌入式系统实现多任务处理与实时监控; |
First, the embedded system based on ARM is used to realize multi-task processing and real-time monitoring. |
40358 |
然后通过FPGA实现对视频流的接收、转换、处理及分屏输出显示的硬件加速。 |
Then FPGA realizes hardware acceleration of receiving, converting, processing and split-screen output display of video stream. |
40359 |
系统可以根据输入信号实时配置FPGA的工作参数,实现分辨率和分屏数量可变的超高清视频流分屏显示。 |
The system can configure the working parameters of FPGA according to the input signal in real time to realize the split screen display of UHD video stream with variable resolution and number of split screens. |
40360 |
最后采用Zynq UltraScale+MPSOC XCZU7EV多核异构处理器开发平台对本文系统进行测试,结果表明:4K视频多路分屏画面拼接无明显错位,同步一致,较好地满足了视频多路分屏显示要求。 |
Finally, the system is tested using the Zynq UltraScale+MPSOC XCZU7 EV heterogeneous multi-core processor, and results show that the multi-channel split-screen mosaic of 4 K video has no obvious dislocation and consistent synchronization, which better meets the requirements of video multi-channel split-screen display. |
40361 |
空间信息论是关于雷达等目标参数估计系统信息获取一般规律的基本理论,这里的空间信息指被测目标相对于雷达的距离、方向和散射信息。 |
Spatial information theory is the fundamental theory of radar and other target detection systems.The spatial information is associated with the range, the direction and scattering signal of targets.Parameter estimation theorem is an important part of the spatial information theory. |
40362 |
参数估计定理是空间信息论的重要组成部分,本文提出参数估计定理的证明框架,该框架由3个原创性概念和1个定理构成,其中3个概念是空间信息、熵误差和抽样后验概率估计。 |
The proof framework of the parameter estimation theorem is proposed in this paper, which consists of three original concepts of spatial information, entropy error and sampling posterior probability estimation, and one theorem. |
40363 |
参数估计定理证明,熵误差是可达的,反之,任何估计器的熵误差不低于熵误差。 |
The parameter estimation theorem shows that the entropy error is reachable, otherwise the empirical entropy error of any estimator is no less than the entropy error. |
40364 |
空间信息论的建立将对雷达探测的系统理论和方法产生巨大的推动作用。 |
The establishment of spatial information theory will play a significant role in promoting the development of systematic theories and methods of radar. |
40365 |
针对过完备字典直接对图像进行稀疏表示不能很好地剔除高频噪声的影响,压缩感知后图像重构质量不高的问题,提出了基于截断核范数低秩分解的自适应字典学习算法。 |
Aiming at the problem that the direct sparse representation of the over-complete dictionary on the image cannot effectively remove the effect of high-frequency noise, and the image reconstruction quality after compressed sensing is not high, an adaptive dictionary learning algorithm based on truncated nuclear norm and low rank decomposition is proposed. |