blur edge meaning in English

模糊边带

Due to dynamic complex background and defects of infrared image , which are low contrast between object and background , blurred edge of object and high amount of noise , objects detection and tracking is very difficult in this case
由于动态复杂背景,加上红外图像普遍存在目标与背景对比度低、目标边缘模糊和噪声大等问题,给目标的检测与跟踪带来很大的挑战性,目前国内外相关文献还很少。
Even if numerous methods , but most of them are linear processing which have the side effect of bluring edges , so can not meet the case of detecting edges and suppressing noise . and the use of some nonlinear methods we have had are also limited for the lack of theoretical basis
在众多的算法中，基于频域分割原理的线性处理方法在去除噪声的同时会模糊图象的边缘，很难满足针对水声图象特点的“保边去噪”的要求；而一些非线性方法又缺乏统一的理论基础，使其在系统整体的应用中受到限制。