image registration is an important element in data processing for remotesensing with many applications and a wide range of solutions. Despite considerable investigation the field has not settled on a definitive solut...
详细信息
ISBN:
(纸本)9781424411795
image registration is an important element in data processing for remotesensing with many applications and a wide range of solutions. Despite considerable investigation the field has not settled on a definitive solution for most applications and a number of questions remain open. This article looks at selected research issues by surveying the experience of operational satellite teams, application-specific requirements for Earth science, and our experiments in the evaluation of image registration algorithms with emphasis on the comparison of algorithms for subpixel accuracy. We conclude that remotesensing applications put particular demands on image registration algorithms to take into account domain-specific knowledge of geometric transformations and image content.
The development of the remotesensing technology makes us obtain very abundant information of nature, especially with the appearance of high resolution remotesensingimage it extends the visual field of the nature. H...
详细信息
ISBN:
(纸本)9780819469526
The development of the remotesensing technology makes us obtain very abundant information of nature, especially with the appearance of high resolution remotesensingimage it extends the visual field of the nature. High-resolution satellite images such as Quickbird and IKONOS have been applied into many fields. But the challenge that faces us is how to make use of the data effectively and obtain more useful information through some processing. Because in the target recognition, the mutual-complementarity among the different results obtained by the different classifier making using of the same features usually is very strong and high resolution remotesensing data have a lot of characteristics such as spectral, texture and context and so on compared to the other lower resolution remotesensing data, the Multiple Classifiers making use of multi-characteristic was proposed to improve the high resolution remotesensingimage classification accuracy in this paper. The experiments show that the approach can obtain higher classification accuracy and better classification result than single classifier.
To avoid the degraded artifacts during satellite image acquisition, the subpixel technology is commonly used, Which is interlacingly sampled with two images offsetting half a pixel of the same scene. However, the comm...
详细信息
ISBN:
(纸本)9781424410651
To avoid the degraded artifacts during satellite image acquisition, the subpixel technology is commonly used, Which is interlacingly sampled with two images offsetting half a pixel of the same scene. However, the common inlerpolation is not highly precise. The reason is due to the fact that they are linear and local. In order to get a high degree of satellite image resolution, the paper proposes a mulli-degree shift invariant complex wavelet filtering method. Based on the complex wavelet filtering method, the higher resolution remotesensingimages can be attained. Accordingly, the algorithm of adaptive shrinkage complex wavelet denoising based inter-scale is combined with the algorithm mentioned above. The mulli-degree interpolation and denoising, method is proved to be more, effective comparing with other common methods. The multi-degree filling method is suitable for processing the complicated remotesensingimages, and can reconstruct the high-quality image perfectly from the multi-directional subimages.
image fusion is an important tool for remotesensing data processing technology, as many Earth observation satellites provide both high-resolution panchromatic and low-resolution multispectral images. This paper prese...
详细信息
ISBN:
(纸本)9781424410651
image fusion is an important tool for remotesensing data processing technology, as many Earth observation satellites provide both high-resolution panchromatic and low-resolution multispectral images. This paper presents a new image fusion method that combines IHS transform and curvelet transform. Experiments carried out on a Enhanced Thematic Mapper Plus image show that the proposed method quantitatively outperforms state-of-the art image fusion methods, in terms of geometric, radiometric, and spectral fidelity.
Ant Colony Optimization (ACO) algorithm takes inspiration from the coordinated behavior of ant swarms, which has been applied in many study fields as a novel evolutionary technology to solve optimization problems. But...
详细信息
ISBN:
(纸本)9780819469526
Ant Colony Optimization (ACO) algorithm takes inspiration from the coordinated behavior of ant swarms, which has been applied in many study fields as a novel evolutionary technology to solve optimization problems. But it has rarely been used to process remotesensing data. Using the ACO algorithm to remotesensingimage classification does not assume an underlying statistical distribution for the pixel data, the contextual information can be taken into account, and it has strong robustness. In this paper, taking Landsat TM data as an example, the process of ACO method in remotesensing data classification is introduced in detail, and has achieved a good result. The study results suggest that ACO become a new effective method for remotesensing data processing.
An image deformation algorithm is integrated with a Gaussian process classifier for application to remote-sensing tasks in which data is in the form of imagery. To combine these disparate techniques, we introduce a no...
详细信息
ISBN:
(纸本)1424407281
An image deformation algorithm is integrated with a Gaussian process classifier for application to remote-sensing tasks in which data is in the form of imagery. To combine these disparate techniques, we introduce a novel kernel covariance function for the Gaussian process that allows us to incorporate the result of the image deformation algorithm into a rigorous Bayesian classification framework. The resulting classifier is completely non-parametric in the sense that no parameters or hyperparameters must be learned. The promise of the proposed algorithm is demonstrated on a data set of real, measured land mine data.
Automatic target recognition(ATR) is the key of the image guidance technology, yet it is difficult to recognize the target by merely depending on the real-time image acquired by flying vehicle cameras, moreover, the t...
详细信息
ISBN:
(纸本)9780819469526
Automatic target recognition(ATR) is the key of the image guidance technology, yet it is difficult to recognize the target by merely depending on the real-time image acquired by flying vehicle cameras, moreover, the task of recognizing the target from the real-time images by the vehicle-carrying imageprocessing system is a hard work itself The main trend of the ATR nowadays is to make utilization of the images produced by high-resolution remotesensing satellite to retrieve the front elevation of the interested region before hand. These front elevations are loaded upon the flying vehicles and are matched with the real-time images acquired by vehicle-carrying cameras to recognize the interested target. Obviously, the key step of this method is to recover the 3D information from 21) images. This paper proposed a framework to produce multi-scale and multi-viewpoint projection images based on remotesensing satellite stereopair by means of photogrammetry and computer vision. First we proposed a algorithm for reconstructing the 3D structure of the target by digital photogrammetric techniques and establishing the 3D model of the target using the OpenGL visualization toolkit. Then the conversion relationship between the world coordinate system and the simulation space coordinate system is provided to produce the front elevation in the simulation space.
In this keynote address, we address three-dimensional (3D) distortion-tolerant object recognition using photon-counting integral imaging (ii). A photon-counting linear discriminant analysis (LDA) is discussed for clas...
详细信息
ISBN:
(纸本)9780819466884
In this keynote address, we address three-dimensional (3D) distortion-tolerant object recognition using photon-counting integral imaging (ii). A photon-counting linear discriminant analysis (LDA) is discussed for classification of photon-limited images. We develop a compact distortion-tolerant recognition system based on the multiple-perspective imaging of ii. Experimental and simulation results have shown that a low level of photons is sufficient to classify out-of-plane rotated objects.
This paper addresses the weakness of pixel based or cell-based classification algorithms for urban mapping. They cannot provide a handy object level classification results as often preferred in urban planning and asse...
详细信息
In natural complex terrain surfaces, scattering targets with random orientations produce random fluctuating echoes which lead to confused classifications by directly using target decomposition on polarimetric SAR (Pol...
详细信息
ISBN:
(纸本)9781424407286
In natural complex terrain surfaces, scattering targets with random orientations produce random fluctuating echoes which lead to confused classifications by directly using target decomposition on polarimetric SAR (PolSAR) image. In order to reduce the influence, the target vector is transformed into the state with minimization of cross-polarization. Then a set of new parameters u/v/w are used to characterize scattering mechanisms under the deorientation theory, and the fuzzy membership is adopted instead of "hard" division of parameter plan. Characterizing the sample coherency matrices as complex Wishart distribution, the PolSAR image is clustered based on Bayes Maximum Likelihood (ML) criteria. Experiment is carried out on an L-band NASA/JPL SIR-C PolSAR image over Danshui town, Guangdong, China. Comparison results with the popular used methods show that the proposed method provides a significant improvement in classification and the associated scattering mechanism of class is more accurate and beneficial for automatic terrain recognition.
暂无评论