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Inorder to avoide the obstacle objects when the unmaned watersurface vehicle (USV) navigating on the water surface, a coastline detected approach is presented in this paper. By using the video camera on robot boat, the riparian under the surface of the natural environment is detected so as for autonomous obstacle avoidance and navigation. The algorithm is based on the traditional LOG edge detection...
Single image haze removal used median filtering algorithm to optimize the atmospheric veil and the filter's edge preserving effect is not ideal by Tarel's algorithm. Therefore the Tarel's algorithm haze removal results contain halos in depth discontinuity regions. For solving this problem, some adjustments and improvements are made and an improving Tarel's algorithm is proposed in this paper. Firstly...
For the mobile machine vision navigation process will encounter obstacles, this paper presents a fast obstacle recognition algorithm based on super pixels. First, reduce the resolution of the captured image in order to ensure real-time, and then using the SLIC super-pixel image processing algorithms. Finally, adopting the SAD method for classification estimates whether the pixel belongs to the obstacle...
Dynamic bad weather such as rain and snow will reduce the qualities of the image and video, and will affect on the performance of the visual system seriously. So dynamic weather image restoration technology is a challenging research content. According to the optical physical characteristics of raindrops/snowflakes, we studied the classic video frame difference algorithm detects rain/snow, and on its...
The effective extraction of Transmission lines is a very important link in the process of UAV inspection. This paper firstly uses Sobel operator to detect the edge in the transmission lines image after pretreatment, and extracts transmission lines by the traditional Hough transform method. Then it puts forward two algorithms to extract transmission lines. They are the directional wavelet transform...
Simultaneously localizing and tracking of moving target is one of the most important applications of mobile robot system. However, single robot often presents great limitation when facing such tasks because the equipped sensors are often with low precision considering factors of loading ability and cost. Thus, in this paper, cooperative strategy of multiple robot systems is researched to handle this...
The contrast and color of a weather degradation image are bad. Lacking of some parameters, it's difficult to restore the contrast and color of the scene under the fine weather by only one weather degradation image. In this paper two simple methods of restoring a weather degradation image, depth developmental method and depth estimate method, are introduced. The two methods bases on the dichromatic...
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