By expanding its traditional concept and functions, the potential of hawk-eye’s application in cartography was tapped. With the acquisition of the total graph of front view, the client area of front view, the indicat...By expanding its traditional concept and functions, the potential of hawk-eye’s application in cartography was tapped. With the acquisition of the total graph of front view, the client area of front view, the indicator of hawk-eye and the scope frameworks of hawk-eye as the core, various functions of hawk-eye would be realized by combining basic principles and algorithms of the graphic affine transformation with the map demonstration function offered by ArcEngine. Based on the classifications and summaries of the realization methods of hawk-eye, it drew a conclusion that the common hawk-eye and the magnifier window work in the same way, and the location ability of hawk-eye is the basis of dragging function and pulling-boxes function. Hawk-eye has achieved good effects in remote sensing survey and mapping for the development of mining industry.展开更多
This paper presents a low-cost remote vision system for use in unmanned aircraft that provide a first person view （FPV） to vehicle operators in real-time. The system does not require a traditional electromechanical ...This paper presents a low-cost remote vision system for use in unmanned aircraft that provide a first person view （FPV） to vehicle operators in real-time. The system does not require a traditional electromechanical gimbal setup. Instead, the system uses a wide-angle （fisheye） lens and a video camera setup that is fixed on the vehicle and captures the full viewing area as seen from the cockpit in each video frame. Video is transmitted to a ground station wirelessly. On the ground, the pilot is outfitted with virtual reality goggles with integrated attitude and heading sensors. The received video is recertified and cropped by the ground station to provide the goggles with the appropriate view based on head orientation. Compared to traditional electromechanical setups, the presented system features reduced weight, reduced video lag, lower power consumption, and reduced drag on the airborne vehicle in addition to requiring only a unidirectional downlink. The video processing is preformed on the ground, further reducing computational resources and bandwidth requirements. These advantages, in conjunction with the advancement in miniature optical sensors and lenses, make the proposed approach a viable option for miniature remotely controlled vehicles. The system was successfully implemented and tested using an R/C airplane.展开更多
文摘By expanding its traditional concept and functions, the potential of hawk-eye’s application in cartography was tapped. With the acquisition of the total graph of front view, the client area of front view, the indicator of hawk-eye and the scope frameworks of hawk-eye as the core, various functions of hawk-eye would be realized by combining basic principles and algorithms of the graphic affine transformation with the map demonstration function offered by ArcEngine. Based on the classifications and summaries of the realization methods of hawk-eye, it drew a conclusion that the common hawk-eye and the magnifier window work in the same way, and the location ability of hawk-eye is the basis of dragging function and pulling-boxes function. Hawk-eye has achieved good effects in remote sensing survey and mapping for the development of mining industry.
文摘This paper presents a low-cost remote vision system for use in unmanned aircraft that provide a first person view （FPV） to vehicle operators in real-time. The system does not require a traditional electromechanical gimbal setup. Instead, the system uses a wide-angle （fisheye） lens and a video camera setup that is fixed on the vehicle and captures the full viewing area as seen from the cockpit in each video frame. Video is transmitted to a ground station wirelessly. On the ground, the pilot is outfitted with virtual reality goggles with integrated attitude and heading sensors. The received video is recertified and cropped by the ground station to provide the goggles with the appropriate view based on head orientation. Compared to traditional electromechanical setups, the presented system features reduced weight, reduced video lag, lower power consumption, and reduced drag on the airborne vehicle in addition to requiring only a unidirectional downlink. The video processing is preformed on the ground, further reducing computational resources and bandwidth requirements. These advantages, in conjunction with the advancement in miniature optical sensors and lenses, make the proposed approach a viable option for miniature remotely controlled vehicles. The system was successfully implemented and tested using an R/C airplane.
