qcif造句

• Quarter common intermediate format qcif
  四分之一通用中间格式
• Qcif quarter common intermediate format
  四分之一通用中间格式
• Its sampling rate can reach up to 30 frames per second when using qcif format , while 15 frames per second can be obtained for cif format
  当采用cif格式采集时，帧率为15帧秒，采用qcif格式采集时，帧率可达到30帧秒。
• Based on the configuration features of tms320c6416 , the encoder of h . 264 is implemented by using assembly language . the h . 264 encoder that we have implemented on tms320c6416 has a high processing speed . it can comprocess 27 . 5 frames of qcif video images per second in real - time when the cpu frequency of tms320c6416 is 720mhz
  本文实现的h . 264编码器性能为:在主频为720mhz的tms320c6416芯片上对2路qcif格式的视频图像进行处理,在一定的保真度条件下,编码速度达到了27 . 5帧/秒。
• This method is especially suitable for small mobile devices such as handheld pcs , palm - size pcs and mobile phones that possess small display screens and light computational power , and work in low bandwidth wireless networks . the system rtbvideo based on the technique mentioned above typically provides qcif - size video with a frame rate of 5 - 15 fps for a 9 . 6 kbps bandwidth in the internet
  在上述技术的基础上开发的基于internet互联网的实时视频传输系统rtbvideo ，能够提供格式为qcif ( 176 144 )的视频，人体轮廓清晰，画面稳定流畅，且在9 . 6kbps带宽下能达到每秒5 - 15帧。
• Using the above algorithms , h . 263 baseline video - encoder implementation can encode more than 40fps in qcif resolution on a pentium mmx 500 - mhz computer . almost ali of the low bit - rate video compression techniques degrade quality . to combine the video quality evaluation with hvs , the relationship betvveen the motion activity and perceptual video quality are studied , and a video quality evaluation method based on motion activity is proposed , in which video defmition and smoothness are defined
  本文提出一种基于运动特征的视频质量评价方法，考虑了人眼对视频信号感受质量与画面运动剧烈程度之间的关系，分别讨论了反映视频质量的视频清晰度和流畅度，评价结果更符合人眼视觉特性，并且这种评价对编码具有一定的指导作用。