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Light field acquisition devices allow capturing scenes with unmatched postprocessing possibilities. However, the huge amount of high-dimensional data poses challenging problems to light field processing in interactive time. In order to enable light field processing with a tractable complexity, in this paper, we address the problem of light field oversegmentation. We introduce the concept of superray,...
Body Condition Scoring (BCS) is a method of evaluating fatness or thinness in cows, and it is important to manage productivity of the cows. However, it is not easy to measure BCS by observing animals because it consumes much time and costs, especially in the large-scale farming. Therefore, almost farmers are not conducting regular evaluation of BCS. In this paper, we propose the noninvasive method...
This work proposes an obstacle avoidance method based on depth camera for UAV navigation. Firstly, we use a RealSense depth-camera to obtain depth images of the UAV flight environment. Then the image processing board is applied to stratify and segment the depth image and to obtain the orientation and distance information of the obstacle, thus generating the corresponding obstacle avoidance instructions...
In this paper, a vision based measurement system for shaft parts is presented. The hardware of the proposed system consists of image acquisition system, lighting system, industrial control computer and measuring work frame. The key of the whole software system is the image processing algorithm, and its performance directly affects the accuracy and robustness of the measurement system. Firstly, the...
There are many key device nodes in factory, in order to ensure these devices working in a safe and stable way, we need to monitor the status of this devices in real-time. The system based on the video surveillance and computer vision methods, to monitor real-time status of equipment and give some feedback to central control room automatically. The web camera site obtains the video information and...
During conflicts such as climatic catastrophe, war etc. in various countries, including underdeveloped countries, there has been a lack of experienced medical personnel leading to a significant rise in the death toll. To overcome this crisis, a real time automatic injecting device (AID) with robust vein detection is presented in this paper. This device is capable of automatically injecting medicines...
Heavy vehicle traffic and flooded areas are problems experienced on roads because of unimproved road infrastructures and environmental deviations. These factors affect vehicle drivers negatively as they contribute to stress, health problems, and wastefulness of time. This study developed a system called ArRoad that monitors and analyzes vehicle traffic and flooded areas using network of sensors and...
Gesture represents a non-verbal means of communication between people. It comes from poses or movements performed by the human body. Nowadays, hand gestures are the new modality for human and computer interaction. In real-time applications based on hand gestures, the main challenge is to detect the hand(s). In this paper, we present and analyze existing approaches for real-time hand detection. Then,...
Elevators are the means that people often use in everyday life. From the past until nowadays many elevators have been used in many areas. Elevator systems with the formation of high-rise buildings in recent years has become more important. Early diagnosis of faults that may occur in the elevator system is very important. In this study, an approach has been proposed to monitor and detect faults on...
Machine vision systems are used in industrial production areas to produce products with fast, perfect and high precision. These systems allow users to make highly accurate and non-contact measurements and can detect deficiencies in the production process. In this work, a machine vision based non-contact defect detection algorithm for printed circuit boards (PCBs) has been developed. In this approach,...
Since the parking resources become more and more intense, how to make effective management of parking spaces has become a topic for the intelligent transportation system. Compared with the infrared detection and the sensing coil detection, the video analysis method has the advantages of saving hardware cost, easy installation and extending other functions and so on. The algorithms of analyzing location...
A generator inspection robot (GIR) is used to visually inspect a megawatt power generator installed in a power plant. Conventionally, the GIR's location inside the power generator is identified by an operator staff, or using encoders attached to the GIR's track. However, one of the failures in localizing the GIR using encoders is due to a slip between the generator's belts and the robot's track. To...
Hammering test is widely used as a non-destructive testing method for concrete structures. In hammering test, it is important for reducing human's burden and time-consumption because there are large and a lot of concrete surfaces which should be inspected. This paper introduces a novel approach to support hammering test effectively b y displaying the diagnostic results immediately on the concrete...
An application framework is proposed in this paper that considers low cost surveillance mechanism and data acquisition in the forest. An application is developed as proof of concept with detailed design that can take advantage of unmanned urban vehicle to be directly configured and controlled in real-time. The advantages are numerous; it can be used for many purposes. For example, it can be used for...
India is primarily an agriculture-based country and its economy largely depends upon the agriculture. But, most of the crops grown by the farmer are affected by weeds. Weed identification and control remains one of the most challenging tasks in agriculture. The most widely used methods for weed control is manual spraying of herbicides. But, this method has several negative impacts. Since hand labor...
India considers agriculture as it back bone in terms of economy. Every tree originates from seed and saplings are considered to be a small tree. Sapling stage is considered to be sensitive as it is more prone to diseases. Saplings require utmost care for it to have a healthy growth. This project is carried out to implement an Automatic plant health checking vehicle with the help of MATLAB where a...
Recently, UAVs (Unmanned Aerial Vehicles) gain a wider acceptance from many disciplines. One major application is for monitoring and mapping. Flying beyond eye sight autonomously and collecting data over large areas are their obvious advantages. To support a large scale urban city mapping, we have developed a UAV system which can carry a compact digital camera as well as a navigational grade of a...
In an inspection of aging infrastructures has become a problem. Vertical long cylindrical structures is one of inspection targets. Therefore, we have been developing an inspection robot system for these structures. In order to inspect a surface condition of these structures, whole circumference images need to be acquired. In this peper, we implemented a whole circumference image acquisition system...
This study aimed to improve the precision of multiple robots' self-localization in the standard platform league of RoboCup, i.e. a robotic soccer competition. For improving the precision of the self-localization, we proposed a new technique that uses an external camera out of the field for assistance. Robots in the field use the unscented particle filter that estimates their position from some landmarks...
This paper sets out and presents a new approach to determine the stroke volume of the artificial ventricle. The stroke volume of the chamber is one of the basic heart function parameters. For the artificial heart assist purpose, in the study this value is calculated based on the mapped shape of the flaccid membrane of the extracorporeal pneumatic heart assist pump. This is a continuation of the earlier...
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