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In this paper, we present the new illumination estimation method for retinex algorithm, which is the color constancy algorithm under non-uniform illumination condition. In this algorithm, the most important factor is illumination estimation. Because properly estimated illumination guarantees good enhanced image. There are many algorithms for illumination estimation, LPF, MSR, bilateral filter, and...
This paper deals with parking space detection by using ultrasonic sensor. Using the multiple echo function, the accuracy of edge detection was increased. After inspecting effect on the multiple echo function in indoor experiment, we applied to 11 types of vehicles in real parking environment and made experiments on edge detection with various values of resolution. We can scan parking space more accurately...
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