The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a FPGA-based auto focusing system for object ranging. It overcomes the disadvantage of manual focusing wise in traditional method of objects ranging. In our system, the distance of objects can be measured automatically by the auto focusing algorithm. We have experimentally demonstrated the effectiveness of this method. The best performance of our system is about 3% relative errors...
This paper presents algorithms for vision-based detection, tracking and trajectory generation of vehicles in simple video sequences of traffic scenes which are registered by a stationary camera. Processing is done by three steps: improved vehicle detection method, faster tracking algorithm and new vehicle trajectory generation technique. Vehicles are viewed as rectangular blocks with certain active...
Intelligent empty bottle inspection system is an important inspection equipment of empty bottle before filling beer, it is a blend of machine vision, precision machine and realtime control. They need to cooperate perfectly to achieve the desired effect. In the design of the empty bottle inspection system, one of the key technologies is the location of the bottle mouth and bottom which affect the speed...
Human is often the most important role in surveillance scenes. How to detect intact human and judge their pose correctly is discussed. Moving human is firstly extracted by background subtraction method in HSV colorspace. In order to alleviate disturbances from different human's motion poses, the upper half of human is projected to the horizon axis. Utilizing the upper projection histogram, the major...
This paper proposed a novel contactless object-diameter method based on the binary-value circuit and Kalman filter algorithm in optical measurement systems using IR light source. A circuit includes the binary-value and the data sample is used to obtain more important information from imaging sensor, and an Kalman filter mechanism is constructed to provide an appropriate reducing the effects of measurement...
In the paper, a practical method for road detection is proposed. Many features of vehicle are introduced to detect the preceding vehicles. According to the characteristics of lane marks and vehicles, the improved Sobel operator convolution kernel is introduced in the image preprocessing to enhance the robustness of the algorithm. In order to be feasible to the change of illumination and road conditions,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.