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Rare colored capsule (RCC) is the capsule which is mixed in the normal product but with different color. To detect this kind of capsules online, a method based on RGB color space and using HSV color difference formula is proposed in this paper. Considering HSV color space with more balanced color-difference perception, the original RGB formatted capsule image is transformed to HSV color space for...
In this paper, we propose a system of automatically classifying different types of dates from their images. Different dates have various distinguished features that can be useful to recognize a particular date. These features include color, texture, and shape. In the proposed system, a color image of a date is decomposed into its color components. Then, local texture descriptor in the form of local...
Visual strain will be caused by PC operations for a long time a day, which might fail health of human eyes if it continues a week or more. Any action to check it by oneself needs to be done every time PC operations are continued for a multiple of hours. We propose a visual fatigue checker to simply test the fatigue of human eyes and to help us to resume visual health from the fatigue, if any, with...
In recent years, in a game or AR (virtual reality), various modes of expression using a computer are proposed. The new system developed with a computer, a projector, and a camera as one of such the modes of expressions. The system irradiates the light such as the laser pointers to the screen under projection. It is reflected in the screen image data under projection by taking the irradiation locus...
Face detection technology is a hot topic of pattern recognition and computer vision. The method based on skin color feature and AdaBoost are both the most representative methods. Among them, the former method has a faster detection speed, but lower accuracy; the latter method has a higher accuracy, but slower speed. In this paper, a fast face detection method based on the combination of skin color...
Computer graphics image processing technology not only can easily solve the problem of traditional painting simulation in the teaching of art, and has more advantages, the computer image processing technology in the teaching of art characteristics and function of the foot to the art style and morphology of the enormous changes, save manpower, financial and material resources and time, makes the fine...
Computer technology injects new vitality to the field of graphics design; computer graphics technology is adaptive to the era of rapid development of economic globalization and three-dimensional business competition. With the development of economy, computer graphics technology develops rapidly. Now, the development of the computer graphics technology is mainly divided into two-dimension technology...
This paper introduces the design and implementation process of intelligent combination projection system. The system consists of Kinect, computer and projector. There exist two modes in the system: the automatic follow spot mode and human-computer interaction mode. Kinect transmits depth data stream and skeletal frames to computer via USB port. Then the computer processes data and generates the projected...
Local stereo matching methods are still used widely because they are fast and simple. But the accuracy of local methods is much poorer than the global methods. They usually achieve accuracy at the expense of speed. Simple local methods are fast, but exhibit systematic errors. In this paper we propose an improved method based on support-weight approach, which can enhance the matching efficiency and...
This paper provides a way of skin detection in outdoor image based on multiple color space. The clustering is good in the color space YCgCr. Firstly, skin colors are projected in the color space CgCr and the fitting of distribution is carried through in order to wipe off a part of non skin color and gain the intersected image as the result of the first detection. Experimental results indicate that...
A flexible (2k, 2k) quantum image secret sharing (QISS) is proposed for the first time based on 1-qubit measurement scheme and the idea of strip. Through simple quantum measurements, a quantum image can be generated into 2k shares. When recovering the original secret image, strip operations which are proposed in quantum movie are applied on the shares and the secret image can be recovered in one piece...
One should not ignore the fact that affect (or emotion) plays an important role in cognition and learning. For instance, badly designed interface brings negative impact on user's performance if the user does not find enjoyment in his or her overall experience with the system. Automatic analyses of user behaviour in adaptive e-learning system development is important and it would be good to have an...
Acquisiton of crop growth stage information can not only help to analyze the relation between the crop growth process and environmental condition, but also to guide the field operation effectively. Therefore, different growth stages of rape crops are monitored with the visual system constructed in this paper, and the first critical growth stage of rape is detected automatically, which is seeding emergence...
This paper presents the implementation of an embedded camera system applied for shooting training, where the sensor on the gun system is adopted. A CMUcam4 is attached on the gun to detect the laser spot emitted by the shooter. In addition, the camera is used to detect the coordinates of marker on the target, which are sent to a computer for calculating the homography transform. A simple color thressholding...
High performance visualization has played an important role in computer-aided scientific discovery and has become an indispensable tool for computational scientists. Sort-last parallel rendering is a proven approach for visual data analytics by extracting meaningful information from huge data sets generated from large scale scientific computing. Image compositing is the last stage of sort-last parallel...
Since there was no OpenGL implementation for FPGA-based embedded systems before this research, this paper presents a novel OpenGL implementation based on Mesa for an FPGA-based embedded system. This implementation includes the algorithms for Bézier-splines curves and surfaces that can support 3D rendering. In addition, compared with the environment of general-purpose computers, because of the limited...
Karyote segmentation, a significant procedure to computer aided leukemia diagnosis, constitutes a difficult problem due to the morphological complexity, categorical diversity and distributional density of bone marrow cells. Most of the current techniques are based on the internal consistency of the karyote's intensities with little or none considerations on color or texture properties. However, neither...
This paper investigates real-time target determination, recognition and tracking with an airborne video system. The visual navigation and target tracking in an unmanned aerial vehicle (UAV) are of great interest among scientists. To achieve real-time target determination and tracking, we have to accomplish two missions: to determine the “feature” of the target in real time, and to update the the “feature”...
The authors examine the impact of residential photovoltaic arrays and electric vehicles on distribution transformers by using 3-D surface and 2-D filled contour plots. These visualizations, somewhat unorthodox to power distribution analysis, elucidate the impact of hundreds of assets on distribution transformers on a single view. The visualizations are created with a smart grid computer model that...
The research in the education system describes that the students generally do not produce good results because of the use of traditional ways of educational system. It has been identified that the use of interactive technologies, constructive methods and appropriate interfaces has a great impact in improving creative education and learning. With the advancements of Interactive technologies provides...
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