英语翻译Image Quality or Frame Rate?When transmitting a complete

英语翻译
Image Quality or Frame Rate?
When transmitting a complete image every time with MJPEG,image quality is never compromised.To achieve this level of image quality,while keeping bandwidth (storage) demands manageable,the frame rate is reduced.This method is most suitable for applications that stress the importance of details—for example,monitoring product quality on an assembly line.When a reference image and continuous updates are used,a compromise is made between image quality and a higher frame rate.This method particularly suits applications where we want to see an ongoing flow of events at a site,but not the minute details.
Although consistent image quality is important to the vast majority of security application users,it does come at a price—high bandwidth demands on the network and related costs.High bandwidth usage is prohibitive in many applications and perceived as a distinct disadvantage by users who want high quality,full-motion video and audio combined but comparatively low bandwidth consumption.Is there a way to minimize the apparent required trade-off so as to achieve a sufficiently high frame rate at good to excellent image quality,without overloading the network?
MJPEG and MPEG-2 Side by Side
Consider the video sequence displayed above.Frame one is on the far left,the picture in the middle frame two,etc.The video sequence is a man walking from right to left in front of a tree that stands still.In Motion JPEG and MJPEG 2000,each image in the sequence is coded as a separate,unique picture.But with MPEG compression,only the new data in the video sequence is included together with information on the moving parts.This same video sequence,when MPEG-compressed for transmission (or storage) would appear as below.However,when displayed on screen,the images appear as in the original video sequence with all the desired information.MPEG compression simply removes the redundant information in each frame.
Increasingly,the security market is demanding a compression methodology that can deliver full-motion video and audio at DVD-quality over the network while consuming a reasonable amount of bandwidth.MPEG-2 uses approximately one-third the amount of bandwidth as MJPEG.MPEG-2 offers the unique advantage of low bandwidth requirements relative to its high quality of video and audio.For those surveillance applications where identification of suspected perpetrators is the top priority,the MJPEG technique boasts high quality for every frame.MPEG-2 quality and advanced capabilities is perfect for users who want high resolution and high quality video at a fixed bandwidth,as opposed to high quality pictures for each frame.

图像质量或者帧频?
每当用MJPEG（影视压缩编码技术）传送一个完整的图像时,图片质量从来没有收到过损坏.为了达到这种水平的图片质量,同时保持宽带（储存）管理的要求,帧速率就被降低了.这种方法在实际应用中是最为合适的,因为强调了细节的重要性——例如,在流水作业线上检测产品的质量.当一个参考图像和不断更新的资料被应用的时候,在图片质量和高帧速率两者之间,一个折中的方案便产生了.这种方案特别适用于,当我们想看到一个不断进行的事件,而不是每一个微小的细节.
虽然一致的图片质量对于绝大多数安全应用型的用户来说非常重要,但是伴随在网络上高宽带要求用户的产生,这种方法也就应运而生了.高宽带使用情况在很多应用中是受到限制的,而且对于低宽带消耗,追求高图像品质、全动态视频和音响组合的用户来说,是一种劣势.有没有一种办法,在不使网络超载的情况下,可以最大化的减少明显的不足,在保证出色的图片质量的同时,又达到一个足够高的帧速率.
MJPEG（影视压缩编码技术）和MPEG-2（运动图像专家组-2）肩并肩
考虑到上面展示的视频列序.一帧在最左面,图片在中间两帧,等等.视频序列是一个人在一棵树的前面从右走到左,这个不变.在Motion JPEG 和 MJPEG 2000中,只有视频序列中的新数据,与运动部分的新资料被包括在一起.这个相同的视频序列,当MPEG的压缩传输（或者储存）的时候,就会出现这种情况.然而,当在屏幕上被展示的时候,图片就会与所有被需要的信息一起显现出原始的视频序列.MPEG压缩只是简单的在每一帧中移除了多余的信息.
越来越多的,安全的市场需要一个压缩方法,可以在合理的宽带要求下,通过网络提供DVD质量的全动态视频和音频.MPEG-2运用大约 MJPEG所需的三分之一的宽带要求.MPEG-2 提供了一个独一无二的,相对于拥有高质量的视频和音频,并且低宽带的要求的优势.这些疑点鉴定的监控申请是当务之急,MJPEG以保证每一帧的高质量为荣.MPEG-2技术和先进的性能相对于要求每一帧都有高品质的用户来说,对于要求在合适的宽带需求情况下,保证高分辨率和高质量视频结合的用户来讲,是最完美的选择.
啊 终于翻译完了 这么多 累完嘞 保证质量 嘿嘿