ID |
原文 |
译文 |
11054 |
此外还可以采用细估计来提高估计精度。 |
In addition to fine estimation can be used to improve the estimation precision. |
11055 |
为改善分布式压缩视频感知(distributed compressive video sensing,DCVS)系统的视频帧图像重构质量,以实时视频传输为应用场景,提出了一种基于双重稀疏模型的图像解码算法。 |
To improve distributed compressed video perception (distributed compressive video sensing, DCVS) system of the video frame image reconstruction quality, for real-time video transmission application scenario, this paper proposes a model based on double sparse image decoding algorithm. |
11056 |
解码端由相邻的已重构关键帧产生边信息(side information,SI); |
Decoding comprised of adjacent has reconstructed key frames to produce edge information (side information, SI); |
11057 |
根据双重稀疏模型思想,分离样本图像小波域下不同尺度的子带,分别使用K均值奇异值分解(K-means singular value decomposition,K-SVD)算法得到具有多尺度特性的冗余字典,结合梯度投影稀疏重建(gradient pursuit for sparse reconstruction,GPSR)算法,完成对非关键帧的重构。 |
According to the idea of dual sparse model, separation of samples under different scales of wavelet domain image subband, respectively using k-means singular value decomposition (K - means the singular value decomposition, K - SVD) algorithm with multi-scale features redundant dictionary, combined with the gradient projection sparse reconstruction (gradient pursuit for sparse reconstruction, GPSR) algorithm, and complete the refactoring of non-critical frame. |
11058 |
仿真结果表明,在相同压缩率下,相比传统K-SVD字典训练方法,本文所提出的方法对应的视频帧图像重构峰值信噪比(peak signal to noise ratio,PSNR)可获得0.5 |
The simulation results show that under the same compression rate, compared with the traditional K - SVD dictionary training methods, the presented method corresponding to the video frame image reconstruction of peak signal-to-noise ratio (peak signal to noise thewire, PSNR) 0.5 can be obtained |
11059 |
针对具有非对称通信需求的单中继协同放大转发-正交频分复用(amplify forward orthogonal frequency division multiplexing,AF-OFDM)双向中继系统,提出一种中继能效优化策略。 |
For the relay coordination amplification with asymmetric communication needs forward - orthogonal frequency division multiplexing (amplify forward orthogonal frequency division multiplexing, AF - OFDM) two-way relay system, put forward a kind of relay optimization strategy of energy efficiency. |
11060 |
在AF-OFDM双向非对称中继通信系统中,子载波有两种工作模式:单向中继传输和双向中继传输。 |
In AF - OFDM two-way asymmetrical trunking communication system, the subcarrier has two work modes: one-way relay transmission and two-way relay transmission. |
11061 |
以系统能效为优化目标,构建联合中继传输模式选择、功率分配和比特加载组合优化模型; |
Build system energy efficiency as the optimization target of joint relay transmission mode selection and power allocation and bit load combination optimization model; |
11062 |
采用结构近似优化算法,首先固定子载波分配集合,优化单向中继传输和双向中继传输的功率分配,将原优化问题分解为两个子优化问题求解。 |
The approximate optimization algorithm is adopted, the first set fixed subcarrier allocation, optimizing one-way relay transmission and two-way relay transmission power allocation, the original optimization problem is decomposed into two sub optimization problem solving. |
11063 |
然后优化子载波分配集合,利用子载波配对形成的线性结构搜索双向中继传输的最佳子载波数,避免穷举搜索造成的大运算量。 |
And then optimize the subcarrier allocation collection, subcarrier pairing of linear structure search the best subcarrier number of two-way relay transmission avoid exhaustive search of large computational complexity. |