In 16Mb/s ultra-high speed infrared transmission mode, If we don't use special processing methods but directly make the common digital signal as the infrared transmission signal transmission, with a very high prop...
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ISBN:
(纸本)9781467395878
In 16Mb/s ultra-high speed infrared transmission mode, If we don't use special processing methods but directly make the common digital signal as the infrared transmission signal transmission, with a very high proportion of high level in the digital signal, the infrared emission tube will always in launching state, leading to higher transmission dissipation, it will also affect the life of infrared emitting tube at the same time, and the bit error rate is not effectively controlled in the direct transmission. In this paper, a method for the processing of a kind of near distance ultra-high speed infrared transmission signal is introduced. To deal with the infrared transmission signal through the method, it can reduce high level bit rate in the bit stream signal and increase the correlation between the bit, and the power consumption and signal transmission error rate is reduced. At the end of the paper, the feasibility of the method is proved by simulation and calculation.
image encryption is somehow different from text encryption due to some inherent features of image such as bulk data capacity and high correlation among pixels, which are generally difficult to handle by traditional me...
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A new IR (infrared) image pre-processing approach based on image fusion is presented in this paper. Through analyzing the noises types of IR image, this paper produces an alpha-trimmed mean filter for suppressing mixe...
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ISBN:
(纸本)9780769550794
A new IR (infrared) image pre-processing approach based on image fusion is presented in this paper. Through analyzing the noises types of IR image, this paper produces an alpha-trimmed mean filter for suppressing mixed noises and rapid Sobel edge detector for enhancing the target's edge. Then it uses simple weight average method to fuse the treated IR image. Simulation shows that this method is applicable for real-time IR images enhancement and beneficial to target recognition.
There are numerous projects based on bullet detection and calculating its trajectory. For example, using an infrared camera, the heat property of a projectile can be extracted to determine the position of the projecti...
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ISBN:
(纸本)9781728183398
There are numerous projects based on bullet detection and calculating its trajectory. For example, using an infrared camera, the heat property of a projectile can be extracted to determine the position of the projectile at a given point in time. For these calculations, more serious equipment and preparations are required to achieve their efficiency. This paper presents a novel solution, which can determine from first-person view perspective screenshots, the trajectory of the approaching object and the movement necessary to avoid it, knowing the body parts of the endangered entity using imageprocessing and optimization algorithms.
In the process of signalprocessing, noise will affect the accuracy of data processing and research. The accuracy obtained by different algorithms is different[1]. In this paper, a variety of radar signal denoising al...
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ISBN:
(纸本)9781728146522
In the process of signalprocessing, noise will affect the accuracy of data processing and research. The accuracy obtained by different algorithms is different[1]. In this paper, a variety of radar signal denoising algorithms are discussed and simulated. Finally, the self-adaptive noise processing method[2] is described and optimized. The self-adaptive noise cancellation method is obtained. The comparison between the simulated data and the actual measurement data is obtained. It is proved that the self-adaptive RLS noise reduction effect studied in this paper is better, thus reducing the influence of noise.
With the growing digitalization of our society and the increasing development of Industry 4.0, the development of safe human-computer interfaces is of prime importance. For this purpose, we present a new solution for ...
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ISBN:
(纸本)9781728183398
With the growing digitalization of our society and the increasing development of Industry 4.0, the development of safe human-computer interfaces is of prime importance. For this purpose, we present a new solution for avoiding any physical contact between the human and the machine's display and/or its keyboard/pad. Hence, we developed an innovative imageprocessing algorithm which runs on the live video stream of the remote interaction between the human and the machine such as a computer or an intelligent agent;the video stream being captured by an off-the-shelf camera which is embedded in the main machine. The resulting computer-vision system performs visual object detection and tracking of a marker the user holds in one hand and could wave it from a distance in order to remotely interact with the interface of the machine. This remote interaction system has been successfully tested in real-world operational conditions, and the performance of this imageprocessing application has been evaluated in real time.
Heatmaps are widely used by road safety engineers to visualise accident data (where heat refers to the concentration of accidents). In the subfield of road accident black spot localisation, the high number of similar ...
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ISBN:
(纸本)9781728111179
Heatmaps are widely used by road safety engineers to visualise accident data (where heat refers to the concentration of accidents). In the subfield of road accident black spot localisation, the high number of similar black spot candidate locations makes this method unreliable and difficult to use. An additional process to convert the clusters of the heatmap into a list of black spot candidates results in an objective, comparable outcome. As we will show, the commonly used thresholding method (considering pixels above a given limit as parts of black spots) has several limitations. This paper presents a novel imageprocessing approach to quantify the raw data of the heatmap. It is possible to give a more accurate splitting between black spot and safe areas, using the morphological function named erosion.
Post dispatch analysis of signals obtained from digital disturbances registers provide important information to identify and classify disturbances in power systems, looking for a more efficient management of the suppl...
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ISBN:
(纸本)9781424407071
Post dispatch analysis of signals obtained from digital disturbances registers provide important information to identify and classify disturbances in power systems, looking for a more efficient management of the supply. In order to enhance the task of identifying and classifying the disturbances - providing an automatic assessment - techniques of digital signalprocessing can be helpful. The Wavelet Transform has become a very efficient tool for the analysis of voltage or current signals, obtained immediately after disturbances occurrences in the network. This paper presents a methodology based on the Discrete Wavelet Transform to implement this process. It uses a comparison between distribution curves of signals energy, with and without disturbance. This is done for different resolution levels of its decomposition in order to obtain descriptors that permit its classification, using artificial neural networks.
Traditional magnetic flux leakage signal need be processed through each channels in magnetic array data, that increased processing system complexity. This paper proposed a processing system for unsaturated magnetic im...
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ISBN:
(纸本)9781538636749
Traditional magnetic flux leakage signal need be processed through each channels in magnetic array data, that increased processing system complexity. This paper proposed a processing system for unsaturated magnetic image, the processes included image transformation, filtering and resolution enhancement. This system overcame the shortcomings of interpolation method and digital signalprocessing. The experimental results showed that every defects could effectively be extracted and a good reconstruction image of multi-frame super-resolution was obtained with 3 simulated sampling intervals.
Combining the static feature and the dynamic path in consecutive image array of small targets, this paper proposes a detecting method for small targets in sonar image: Improving the selection of (SRG) seeded region gr...
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ISBN:
(纸本)9780769548111
Combining the static feature and the dynamic path in consecutive image array of small targets, this paper proposes a detecting method for small targets in sonar image: Improving the selection of (SRG) seeded region growing method, and defining the size of searching sub window, this paper realizes the selection of suspected targets in single image that have certain SRR (signal-to-reverberation ratio);to enhance the detection probability, we build the relative moving modal of vessel and targets, considering the shaking of vessel, obtain the searching limits and moving path of suspected targets in consecutive image array, and raise the principle of targets determination utilizing the IVF (intensity variation function). Experiment results show the validity of the algorithm
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