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[Multimedia Develop] Dof DL : 0: 本程序在窗口中显示绘制的5个茶壶图像则景深效果。本程序是基于单文档的MFC应用程序，主要介绍如何使用accPerspective()函数和如何能够保持在焦点平面的同时抖动视图体等方向的内容。-the procedures in the window display was produced by five images were teapot depth of field effects. This procedure is based on the MFC single document applications, mainly how to use accPerspective () function and how to maintain the focus plane at the same time jitter View direction of the body, such as the contents.
Date : 2025-12-28 Size : 112kb User : 陈康
[Multimedia Develop] An_Adaptive_Jitter_Buffering_Algorithm_for_Voice_o DL : 0: 当IP语音包的网络时延抖动较小时，一般的语音缓冲算法可以得到较好的语音质量。当网络中存在突发大时延时，就会出现极大丢包率或极大端到端时延，从而难以获得好的语音质量。为此，提出针对突发大时延下的自适应语音缓冲算法。通过估算网络平均时延和学习语音包经过的网络路径上的状态，来确定需要控制端到端时延大小和语音包的丢包率，动态调整Jitter Buffer队列的最小深度和最大深度，从而可以尽量减小语音裂缝（gap）的出现。通过基于听觉模型的客观音质评价（PESQ）仿真计算以及在实际语音网关设备中的应用表明算法对语音通信质量有一定的改善作用。-The continuous playout of voice packets in the presence of variable network delays is often achieved by buffering the received voice packets for sufficient time. Basic jitter buffering algorithms can work well only when the delay does not spike status of the networks, is presented to promote the quality of voice communication. It timely adjusts the minimal and maximal depth of buffer queue according to the control target of end-to-end delay and packet loss rate. The algorithm can much more easily achieve the continuous playout because it plays voice packet at a fixed inter-play time in the most time of a talk-spurt. The control target of packet loss rate can be extended to 20 . However, the basic algorithms can only bear 5-10 of the packet loss rate. Perceptual evaluation of speech quality(PESQ) is applied to assess the speech quality in the simulation. It is shown that the algorithm can obviously promote the quality of voice communication in IP networks with spike delay. The practic
Date : 2025-12-28 Size : 322kb User : 瞿志超
[Multimedia Develop] ransac DL : 0: 利用RANSC算法去视频抖动，进行匹配，进行电子稳像算法处理-Use RANSC algorithm to video jitter, matching the electronic image stabilization algorithm processing
Date : 2025-12-28 Size : 4.67mb User : 李华
[Multimedia Develop] button_detect_programme DL : 0: 一个按键查询检测方式，使用定时器，同时可以控制抖动时间-Detect a key way of inquiry, use the timer, the time jitter can be controlled simultaneously
Date : 2025-12-28 Size : 3kb User : han317421