With the rapid expansion of artificial intelligence technology, the trajectory of future battlefield operations is increasingly guided by intelligence. The modern combat environment is growing in complexity. An improv...
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With the rapid expansion of artificial intelligence technology, the trajectory of future battlefield operations is increasingly guided by intelligence. The modern combat environment is growing in complexity. An improved Fast Regions-Convolutional Neural Network algorithm is proposed for extracting multiple objects in intricate backgrounds to enhance the precision of striking enemy objects. Furthermore, to reduce the missed detection rate of objects, this research aims to integrate the backbone feature extraction network of the Residual Network with the Feature Pyramid Network. This integration seeks to optimize candidate regions and extract more detailed features of the object, thereby improving overall detection accuracy. This study notably enhances object detection algorithms in complex scenarios, particularly in military and security-sensitive fields, by integrating residual and feature pyramid networks into the Fast Regions-Convolutional Neural Network framework. The primary contribution is improving the algorithm's detection capability for small and multi-scale objects while bolstering its robustness against challenges like poor image quality, low contrast, and occlusion scenarios. Additionally, the study enhances the algorithm's generalization through data augmentation technology, ensuring high accuracy in diverse environments. These advancements contribute significantly to object detection techniques and hold practical value for applications like intelligent monitoring and autonomous driving. The data confirm that the enhanced Faster Regions-Convolutional Neural Network model achieves the highest accuracy at 98.21%, surpassing the original model by 13.47%. Following pruning, the optimized model demonstrates a remarkable 33.33% increase in the detection rate, coupled with a 1.58 times acceleration effect. The research on multi-object extraction technology in complex backgrounds, based on the Faster Regions-Convolutional Neural Network algorithm within artifici
The paper focuses mainly on extraction of important topographic objects, like buildings and roads, that have received much attention the last decade. As main input data, aerial imagery is considered, although other da...
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The paper focuses mainly on extraction of important topographic objects, like buildings and roads, that have received much attention the last decade. As main input data, aerial imagery is considered, although other data, like from laser scanner, SAR and high-resolution satellite imagery, can be also used. After a short review of recent image analysis trends, and strategy and overall system aspects of knowledge-based image analysis, the paper focuses on aspects of knowledge that can be used for object extraction: types of knowledge, problems in using existing knowledge, knowledge representation and management, current and possible use of knowledge, upgrading and augmenting of knowledge. Finally, an overview on commercial systems regarding automated object extraction and use of a priori knowledge is given. In spite of many remaining unsolved problems and need for further research and development, use of knowledge and semi-automation are the only viable alternatives towards development of useful object extraction systems, as some commercial systems on building extraction and 3D city modelling as well as advanced, practically oriented research have shown. (C) 2003 Elsevier B.V. All rights reserved.
Several segmentation methods have been reported with their own pros and cons. Here we proposed a method for object extraction from T2 weighted (T2) brain magnetic resonance (MR) images. The proposed method is purely b...
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Several segmentation methods have been reported with their own pros and cons. Here we proposed a method for object extraction from T2 weighted (T2) brain magnetic resonance (MR) images. The proposed method is purely based on histogram processing for gradient calculation. The proposed method utilizes the histogram filtering technique as a pre-processing. The primary brain areas;gray matter (GM), white matter (WM), and cerebrospinal fluid (CSF) are extracted out efficiently from 2D and 3D images. The method has been successfully implemented on human brain MR images obtained in clinical environment. (c) 2013 Elsevier B.V. All rights reserved.
We define a new birth and death dynamics dealing with configurations of disks in the plane. We prove the convergence of the continuous process and propose a discrete scheme converging to the continuous case. This fram...
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We define a new birth and death dynamics dealing with configurations of disks in the plane. We prove the convergence of the continuous process and propose a discrete scheme converging to the continuous case. This framework is developed to address image processing problems consisting in detecting a configuration of objects from a digital image. The derived algorithm is applied for tree crown extraction and bird detection from aerial images. The performance of this approach is shown on real data.
This paper addresses the problem to extract moving object from the moving background in the mixed domain (MixeD), which makes it possible to carry the filtering in one dimension, Since the velocities of moving object ...
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This paper addresses the problem to extract moving object from the moving background in the mixed domain (MixeD), which makes it possible to carry the filtering in one dimension, Since the velocities of moving object and background are necessary for moving object extraction, we first estimate the velocities based on the appropriate spatial frequency point selection method in the MixeD. Then an optimal filter used for 1-D signal filtering is designed. By filtering 1-D signals over all spatial frequencies, signals with certain velocity vector are extracted, while the extracted image is obtained by applying the 2-D IDFT to the filtered signals. The simulation results,;how that the method can extract moving object based both on the correctly estimated velocity and the proposed optimal 1-D filter.
To date, wireless sensor networks lack the most powerful human sense - vision. This is largely due to two main problems: (1) available wireless sensor nodes lack the processing capability and energy resource required ...
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To date, wireless sensor networks lack the most powerful human sense - vision. This is largely due to two main problems: (1) available wireless sensor nodes lack the processing capability and energy resource required to efficiently process and communicate large volume of image data and (2) the available protocols do not provide the queue control and error detection capabilities required to reduce packet error rate and retransmissions to a level suitable for wireless sensor networks. This paper presents an innovative architecture for object extraction and a robust application-layer protocol for energy efficient image communication over wireless sensor networks. The protocol incorporates packet queue control mechanism with built-in CRC to reduce packet error rate and thereby increase data throughput. Unlike other image transmission protocols, the proposed protocol offers flexibility to adjust the image packet size based on link conditions. The proposed processing architecture achieves high speed object extraction with minimum hardware requirement and low power consumption. The system was successfully designed and implemented on FPGA. Experimental results obtained from a network of sensor nodes utilizing the proposed architecture and the application-layer protocol reveal that this novel approach is suitable for effectively communicating multimedia data over wireless sensor networks. (C) 2013 The Author. Published by Elsevier B.V. All rights reserved.
A procedure for extracting objects present in imagery taken by the fieldable laser radar transceiver (FLRT) is reported. The laser radar imagery of a scene is composed of a registered pair of range and intensity image...
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A procedure for extracting objects present in imagery taken by the fieldable laser radar transceiver (FLRT) is reported. The laser radar imagery of a scene is composed of a registered pair of range and intensity images. Range images are first normalized in order to recover shape distortion due to the inherent effect of the ellipse-like coordinate system of the FLRT sensor. The normalized images are then smoothed using a median operator followed by a histogram-based filter to further remove outliers of noise. Afterwards, objects can be extracted from the images by removing the backgrounds of scenes. Extracted objects are then separated according to their range values into individual objects. Finally, by referring to the registered intensity images, some non-target objects can be discovered and be removed a priori.
We previously proposed a query-by-sketch image retrieval system that uses an edge relation histogram (ERH). However, it is difficult for this method to retrieve partial objects from an image, because the ERH is a feat...
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We previously proposed a query-by-sketch image retrieval system that uses an edge relation histogram (ERH). However, it is difficult for this method to retrieve partial objects from an image, because the ERH is a feature of the entire image, not of each object. Therefore, we propose an object-extraction method that uses edge-based features in order to enable the query-by-sketch system to retrieve partial images. This method is applied to 20,000 images from the Corel Photo Gallery. We confirm that retrieval accuracy is improved by using the edge-based features for extracting objects, enabling the query-by-sketch system to retrieve partial images.
This paper introduces a novel technique for object detection using genetic algorithms and morphological processing. The method employs a kind of object oriented structure element, which is derived by genetic algorithm...
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This paper introduces a novel technique for object detection using genetic algorithms and morphological processing. The method employs a kind of object oriented structure element, which is derived by genetic algorithms. The population of morphological filters is iteratively evaluated according to a statistical performance index corresponding to object extraction ability, and evolves into an optimal structuring element using the evolution principles of genetic search. Experimental results of road extraction from high resolution satellite images are presented to illustrate the merit and feasibility of the proposed method.
Friedmann et al. (2009) propose that the grammar of three-five-year-old children imposes a stricter version of Relativized Minimality that the adult grammar does. This allows them to explain several experimental findi...
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Friedmann et al. (2009) propose that the grammar of three-five-year-old children imposes a stricter version of Relativized Minimality that the adult grammar does. This allows them to explain several experimental findings, including the difficulty children have in comprehending object relative clauses when the subject of the relative is a lexical NP, and in comprehending object questions when the object is D(iscourse)-linked. The purpose of this paper is to challenge their analysis, in terms of both its empirical coverage and its implications for a theory of acquisition that assumes continuity. (C) 2009 Elsevier B.V. All rights reserved.
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