Improvement of Corner Detection Algorithms (Harris, FAST and SUSAN) Based on Reduction of Features Space and Complexity Time
Engineering and Technology Journal,
2017, Volume 35, Issue 2, Pages 112-118
AbstractThe active detection for gratifying features can be a definitive pace for computer vision in different tasks. Corners become more preferable models because of their two dimensional constrain; two dimensional limitations and algorithms can be rapid to detect them. Corners in images form significant information. Elicitation corners precisely are significant for processing image data to minimize a lot of computations. This paper can be used three vastly algorithms for detection the corner in images improvement Harris, improvement FAST, and improvement SUSAN which are based on two criteria for comparison to minimize the space of interest features and runtime reduction. From that, it can conclude that the algorithm of improvement FAST was outstanding to improvement Harris and improvement SUSAN algorithms on these criteria. FAST, SUSAN and Harris algorithms for corner detected were improved by applying Haar transform and choosing an adaptive gray difference threshold. Improvement FAST, has been offered which can be exceeded the previous two algorithms, improvement Harris and improvement SUSAN in both less run time and small features space. For example, the time taken by car image is 0.0005 second to extract the features using improvement FAST algorithm, which is much less than that used by the SUSAN and Harris algorithms. Improvement Harris takes 0.0074second and SUSAN takes 0.0096 second.
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