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码率

n.code rate
网络Bitrate; VBR; CBR

码率

英-汉网络释义

码率

Bitrate

对于流媒体，码率（bitrate）可以定义为：单位时间内流过的数据量，单位通常采用kb/s（千比特/秒）。这里所谓“流过”，其实 …

VBR

不等码率（VBR）下请参照上表交叉对比单从频率范围来讲：对于1个理论上的正常人来说，听觉范围大约为50hz-20Khz。

code rate

称为码率（code rate）。任何编码方案的码率自然地要小于1。

CBR

码率(cbr)频谱(立体,k) 频谱(联合,k) 大小(m) 128 16.1(小衰) 16.1 4.51 160 16.1+ 17.3(中衰) 5.64 192 18.6(大衰) 18.6(中衰)

kbps

...率也应该转换成320*240，不了解的这样做比较好。码率就看屏幕大小，2.4寸以下的384左右的码率(kbps)就够了，如果是3 …

Coding Rate

码率（Coding Rate）代表每个码句中含有多少的讯息量，表示方式为R=k/n，如IEEE 802.11a标准便提供 1/2、3/4、2/3 等三 …

Data Rate

码率（Data Rate）是指视频文件在单位时间内使用的数据流量，也叫码流或码流率，是视频编码中画面质量控制中最重要的部 …

例句：

Increase transmission bandwidth of course or raise a rate to be able to acquire much better picture quality , but its price is higher.

当然增添传输带宽或进步码率能够获得更佳的图像品质，可是其价钱比较低廉。

Block artifact is one of major causations which reduce the quality of pictures in video coding , especially at the time of low bit rate .

块效应是视频编码中影响编码质量的一个重要问题，特别在低码率情况下尤为明显。

Technology of video coding for low bit rate communication has been a focus of attention in the domain of video processing .

甚低码率视频图像编解码技术是近年来视频处理领域中的一个研究热点。

this has been an ongoing problem for many years and tends to be exacerbated by lower bit rates .

多年来，它们已是既知的老问题，并且在低码率下更趋严重。

Rate control strategy is one of the key video coding techniques , and it has an important impact to image quality and bit rate .

码率控制是视频编码的关键技术，它对编码图像的质量和输出码率会产生直接影响。

The best rate control can be decided by the appropriate allocation of bits and precision of the bit rate control .

最佳的码率控制由合适的比特分配和精准的比特率控制所共同决定。

Rate control is one of key techniques in H. 264, which will affect the performance of the video coding network transmission directly.

码率控制是 H.264 视频编码的关键技术之一，其控制效果将直接影响视频编码的网络传输性能。

Each data block is then encoded in accordance with the code rate (s) associated with the data rate for that data block.

每个数据块随后根据与用于该数据块的数据率相关联的（各）码率被编码。

Finally , give a summary of this paper . The state of arts and possible new directions of rate control are stated.

最后对全文工作进行总结，并对视频传输中的码率控制技术的未来发展趋势进行了展望。

Generally, the rate distortion model is employed to compute quantization parameter for the controlling bit rate .

通常码率控制算法使用一定的率失真模型来决策量化参数从而控制码率。

The proposed coding scheme achieves a code rate of 2 and requires the channels to be stationary over only two consecutive blocks .

本编码方案的码率为 2 ，且只要求信道在两个连续的块内保持恒定。

By selecting different rate liner dispersion codes , the system can trade off between BER performance and data rate .

通过选择不同码率的线性分散码，在误码率性能和传输速率方面进行折中。

The performance of convolutional code is superior to block code if their corresponding encoders are the same complicated degree .

在码率和编码器复杂程度相同的情况下，卷积码的性能优于分组码。

The rate control problem in such video coder can be regarded as a problem of bit-allocation among different wavelet sub-bands.

在三维小波编码中，如何调整各小波频带间的码率分配以达到最佳的码率控制至关重要。

Absrtact: Stroke input has a strong advantage relative to the Pinyin input in weight rate .

摘要：笔画输入相比拼音输入在重码率方面具有强大的优势。

Simulation results show that the proposed method is effective and adaptable for low and very low bit rate applications .

仿真结果表明，该方法适用于低码率及甚低码率的视频应用。

The paper also adopted the feedback method to adjust the bits allocated , making the frame layer rate control more reasonable and accurate .

同时根据反馈原理，参考前面帧的分配误差调整分配的目标比特数，使帧层码率控制更加准确。

Further more, these codes have flexible block length and code rate, and may be used in various areas .

并且采用该构造方法可以构造各种码长和码率的 LDPC 码，适应不同领域的应用。

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