Long-time coherent integration works to significantly increase the detection probability for maneuvering targets. However, during observation time, problems that often tend occur are range cell migration (RCM) and Doppler frequency (DFCM), due high velocity acceleration of target, which can reduce In this regard, we propose a new approach, based on product scale zoom discrete chirp Fourier tran...

Lucas-Kanade and active appearance models are among the most commonly used methods for image alignment and facial fitting, respectively. They both utilize nonlinear gradient descent, which is usually applied on intensity values. In this paper, we propose the employment of highly descriptive, densely sampled image features for both problems. We show that the strategy of warping the multichannel ...

The image registration framework in the Insight Tookit offers a powerful body of code for finding the optimal spatial transform that registers one image with another. However, ITK currently lacks a way to fit parametric models of image pixel values to an input image. Such a capability is necessary in certain applications such as sub-resolution localization of molecules in fluorescence microscop...

A damage detection method is presented for the identification and quantification of damage. The proposed method uses finite element method to extract modal parameters of cracked and intact cantilever beam. The damage is simulated by fracture mechanics concept by introducing cracked elements at different locations with predetermined magnitude of depth. The curvature response function, function o...

Line-mixing effects have been studied in the ν 1 Q Q K (K from 0 to 10) sub branches of methyl chloride (CH 3 Cl) perturbed by nitrogen (N 2). Laboratory Fourier transform spectra have been recorded at room temperature for various pressures of atmospheric interest. In order to accurately model these spectra, a theoretical approach accounting for line-mixing effects is necessary and proposed in ...

A new algorithm for the automatic recognition of peak and baseline regions in spectra is presented. It is part of a study to devise a baseline correction method that is particularly suitable for the simple and fast treatment of large amounts of data of the same type, such as those coming from high-throughput instruments, images, process monitoring, etc. This algorithm is based on the continuous...

A method for obtaining accurate, quantitative 57Fe Mössbauer spectra from biological samples is illustrated stepwise in a data reduction procedure. Exact criteria are presented for deciding when it is necessary to account for the effects of the Beer-Lambert law in the Mössbauer spectra from biological samples. This procedure makes extensive use of the fast Fourier transform and other computer t...