Characteristics of electro - optical x - ray image intensifiers for medical electrical equipment - determination of the image distortion 医用电气设备x射线图像增强仪电光特性.图像失真测定
The basic aim of image compression is minimizing the distortion with the needed bit - rate . the image compression based on wavelet transform is 图像压缩编码的根本目的,是在给定比特率下,使图像失真达到最小。
Wavelet analysis have a variety of advantages , so there are a lot of image compression methods based on wavelet transform 图像压缩编码的根本目的,是在给定比特率( bitrate )下,力求使图像失真( distortion )达到最小。
Experimental results demonstrate that the scheme is reasonable and this system can be used for surveillance and image transmission 实验结果表明本设计方案设计合理,能够使用低压电力线作为图像传输介质,图像失真较少,可以应用于公共场所监控以及需要图像采集和传输的场合。
Secondly , mpeg4 technology and mpeg4 video compression card are use in this plan . thirdly , for video transmission , the size of the pictures are shortened to make the bit - rate smaller 三、采用mpeg4优化算法,在视频图像失真尽量小的情况下,达到对视频的更大的压缩比。
It operates by factoring a projection to form an intermediate . therefor it can run better . this paper deeply investigates the shear - warp algorithm . but two factors caused the distortion of the final image in this algorithm 本文对这一算法进行了深入的研究,并针对shear - warp算法产生图像失真的两种原因,提出了一种改进方法。
This article elaborates the elements of distortion in image by the probe in contacting measurement first , then introduce sa way to reduce the influence of probe in measurement on the base of mathematical morphology 摘要讲述在接触式测量时触针产生图像失真的原因,然后在数学形态学的基础上介绍了一种触针重建的方法来减少触针在测量中的影响。
During the research on image distortion correction , the paper receives a good result on camera calibration by improving the traditional barrel distortion model , and expands the current theories on image distortion correction 在图像失真校正的研究中,本文对传统的桶形失真模型进行了改进,取得了较好的校正效果,扩展了现有的图像失真校正理论。
When we use fft to analyze harmonics and interharmonics , the interharmonics component will result in a phenomenon of frequency spectrum leakage and make the amplitude - frequency image distorted , so we must judge the component of harmonics and interharmonics 在运用fft分析谐波和间谐波时,间谐波的存在会造成“频谱泄漏”的现象,使得幅频特性图像失真,需要对其中谐波和间谐波的含量做出判断。
The paper is a successful application of current image distortion correction and image stitching techniques . it also brings forward some new methods on image processing . it is believable that this paper would be a useful guide for future research on these areas 本文是对图像失真校正和图像拼接现有成果的一次成功应用,并且根据实际需要提出了一些新的图像处理方法,相信对今后这一领域的研究可以起到一定的指导作用。