Technologies of digital signal processing and digital image processing are the basis of APC, and multi-objects detecting and tracking algorithm is the essential factor to implement it.
其中，数字信号处理技术与数字图像处理技术是实现基于多目标识别的自动乘客计数技术的前提与基础，多目标检测与跟踪计数算法是技术实现与应用的核心。
Uses digital image processing algorithm in the computer to realizes the target image enhancement.
在计算机中采用数字图像处理算法，实现对目标区域图像的增强。
To overcome the various of disadvantages of the manual visual measure method of bridge crack, a new algorithm is put forth on the basis of digital image processing technology.
针对人工视觉测量桥梁裂缝方法存在的种种弊端，提出基于数字图像处理的桥梁裂缝测量的新算法。
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