GDL

Journal from gdlhub / 2021-09-04 15:47:59
Oleh : Handoko Handoko, Jehoshua Hanky Pratama, Banu Wirawan Yohanes, Telkomnika
Dibuat : 2021-01-29, dengan 1 file

Keyword : color segmentation; optimization; shape segmentation; traffic sign detection;
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/16281
Sumber pengambilan dokumen : web

One of performance indicator of an Autonomous Vehicle (AV) is its ability to accomodate rapid environment changing; and performance of traffic sign detection (TSD) system is one of them. A low frame rate of TSD impacts to late decision making and may cause to a fatal accident. Meanwhile, adding any GPU to TSD will significantly increases its cost and make it unaffordable. This paper proposed a pre-processing system for TSD which implement a color and a shape segmentation to increase the system speed. These segmentation systems filter input frames such that the number of frames sent to AI system is reduced. As a result, workload of AI system is decreased and its frame rate increases. HSV threshold is used in color segmentation to filter frames with no desired color. This algorithm ignores the saturation when performing color detection. Further, an edge detection feature is employed in shape segmentation to count the total contours of an object. Using German Traffic Sign Recognition Benchmark dataset as model, the pre-processing system filters 97% of frames with no traffic sign objects and has an accuracy of 88%. TSD system proposed allows a frame rate improvement up to 32 FPS when YOLO algorithm is used.

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