In case you were curious, most of the 3gpp video is encoded in h.263 MPEG-4, with AMR audio, but it's gradually shifting to h.264, too.
如果你很感兴趣,大部分3gpp视频都是以h . 263 MPEG - 4以及amr音频编码的,但是它们现在也逐渐在转移到h . 264了。
With its strong parallel processing ability and signal processing capacity, the C64 series chips of ti corporation is an ideal platform to run H. 263 CODEC.
TI公司生产的C64系列芯片具有很强的并行处理能力和信号处理功能,是实现H。263编解码的理想平台。
Based on analyzing H. 263 recommendation, a new scene adaptive video coding scheme which used two layer filter mechanism was proposed.
基于H。 263视频编码标准,提出了一种新的采用二级筛选机制的场景自适应编码方案。
Based on the features of low coding rate video encoding, we improved the control strategy of quantization step and coding rate in the simulation program TMN - 2. 0 of H. 263 test model (TMN5).
文章根据低码率图像编码的特点,对H。263测试模型(TMN5)的仿真程序tmn- 2.0中的量化级和码率控制策略的不足之处进行了合理的改进。
The main research objects of our paper are software implement method of H. 263 video CODEC and development technology of DSP system.
本文的主要研究对象是基于DSP的H。 263视频编码器的软件实现方法和DSP系统的开发技术。
Firstly, we investigated the error sensitivities of H. 263 syntactical elements and grouped them into several classes of different significance.
首先,我们说明了H。263句法元素的误差敏感性并根据其敏感性将其进行分类。
According to the characters of multimedia transport, the technology of combing RTP Protocol, H. 263 Protocol and put right errors is discussed in this paper.
针对多媒体传输所具有的特点,分析了RTP协议、H。263协议和视频纠错技术在视频实时传输中相结合的技术。
Based upon the conditions described above, we have designed a video codec system using DSP which can encode and decode H. 263 or MPEG-2 video stream.
基于以上情况,我们开发了一套基于DSP实现的视频编解码器,它能按照H . 263协议或MPEG- 2协议进行编解码。
Overall, this thesis has certain value to the application of H. 263 video coding and DSP realization.
本文的研究工作对h . 263视频编码的应用和DSP实现具有一定的参考价值。
At last, based on the integration of the upwards research, we realize the H. 263 video encoding and decoding software experiment system.
最后,在综合了以上研究的基础上,实现了H。263视频编译码软件的实验系统。
This paper proposes an overlapped block affine motion compensation method to improve the translational motion model used in H. 263, and it improved the quality of image with complicated motion.
本文对H.263中基于平移模型的重叠块运动估计补偿方法进行改进,提出了一种基于仿射模型的重叠块运动补偿方法,该方法对复杂运动图像质量有明显改善。
After a brief description of error correcting code of applied digital video signals in H. 263, this paper focuses on the design and implementation of BCH (511,493) error correcting code.
首先介绍了H . 263建议中视频信号纠错编码的应用,然后着重介绍了BCH(511,493)纠错编译码的设计及其实现。
Carries on the optimization to the H. 263 quantification technology, a intra-frame quantification search table that can avoid the division operation is constructed.
263量化技术也进行了优化,构造出一个可以避免除法运算的帧内量化查找表。
The software arithmetic mixed standard H. 263/H. 263+ arithmetic and image enhancing and dividing technology.
接收端采用软件解压缩,软件算法融合了H·263/H·263+标准算法和图像增强与分割技术。
The purpose of this thesis is to study about the video-coding standard targeted for low-bit-rate video coding technique (H. 263) that improves video quality considerably.
本论文是研究的对象是以低码率视频编码技术(基于H . 263)为目标的视频编码标准,目的是为了能大大提高视频质量。
The program design and implementation of GPRS-based wireless monitoring, monitor and control a remote wireless transmission of data to meet the H. 263 image compression standard.
本方案的设计和实现基于GPRS无线监控,实现监控数据的远程无线传输,能够满足H.263图像压缩标准。
This paper proposes a new and practical implementation scheme of H. 263 video coding which is aided by hardware and utilizes the high bandwidth of PCI bus to achieve the real time effect perfectly.
提出了一种新颖而实用的H.263视频编码方案,其采用了硬件辅助的方法并利用PCI总线的高带宽来达到实时效果;
Compared with previous standards, at the same quality of coding, H. 264 can save around 50%of the bit rate, coding efficiency can doubled than H. 263.
与以前的标准相比,在同等编码质量下,H . 264可以节省大约50%的码率,编码效率比h . 263提高一倍左右。
And through the experiment on the two standard video sequences, it compared and analysed the results of the MPEG-4 video transmission and H. 263 video transmission, the results had been satisfactory.
并通过对两段标准视频序列的实验,对MPEG - 4视频传输与H . 263视频传输的结果进行了比较分析,得到了令人满意的结果。
Performances of these search algorithms are tested in H. 263+ Test model.
测试模型上对各种算法的性能进行了测试。
In this paper the principle of video coding, the recommendation H. 263 and the real-time signal processing system based on DSP chip are introduced first.
本文首先介绍了视频图像编码原理、H . 263建议和基于DSP芯片的实时信号处理系统。
The server is running, pressing from the start of PC cameras capture video, H. 263 coding and the use of compression.
服务端运行时,按下开始就可以从PC机的摄像头捕获视频,并且使用H . 263编码进行压缩。
The results shows that the algorithm is merit under high rate, and reach the H. 263 under low rate.
经与H.263视频压缩标准对比,说明本文提出的算法在中高码率下性能优异,在低码率下也达到了H.263标准。
The results shows that the algorithm is merit under high rate, and reach the H. 263 under low rate.
经与H.263视频压缩标准对比,说明本文提出的算法在中高码率下性能优异,在低码率下也达到了H.263标准。
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