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- W4254773048 abstract "With the advancement of information technology, video logging has become a feasible and common practice for state-level departments of transportation (DOTs) to visualize roadway conditions to support various transportation activities. A new and innovative image-processing algorithm and method using video log images to enhance the highway roadway geometry data collection is presented. The algorithm is based on Canny edge detection, slope-adaptive edge reduction, a novel recursive approximation of the vanishing point, localized color thresholding, and knowledge-based Hough transform. Experiments on real digital images indicate that the algorithm is feasible for automated road geometric data collection, especially in recognizing lane marks and shoulder edges. The algorithm was implemented with Visual C++ language and tested on a Pentium IV 3.06-GHz computer. It indicates that the average processing speed is about 280 ms for an image size of 1,300 × 1,050. The developed method can be used by state DOTs to save money and cost by flagging the video images with a variation index. Thus, the video images with a high variation index (e.g., changing lane location) can be identified for a focused visual measurement Future studies for evaluating the algorithm under various weather, lighting, and roadway conditions are also discussed." @default.
- W4254773048 created "2022-05-12" @default.
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- W4254773048 date "2006-01-01" @default.
- W4254773048 modified "2023-09-27" @default.
- W4254773048 title "Enhanced Roadway Geometry Data Collection Using an Effective Video Log Image-Processing Algorithm" @default.
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- W4254773048 doi "https://doi.org/10.1177/0361198106197200116" @default.
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