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Limitations and disadvantages of available methods based on statistical analysis are pointed out and a novel image moving sea targets detection method based on the natural measure feature is proposed. The method analyses the characteristic of chaotic sea and sky background and extends the extraction of the natural measure feature from single dimensional signals to two dimensional image signals. The...
This paper puts forward a novel method using dynamic programming and grey relational analysis to find a best seam line because of the grey scale difference in the edges of image in the overlapping region and the relation of neighboring points. The first step is to find an optimal seam line to stitch the images. Then the seam line is removed by a hard correction method based on dynamic width. Finally,...
From 1990s, with the genesis and rapid develop-ments of Kansei Engineering and Affective computing, affective information processing methods have been used to analyze and process images to extract affective features contained by images. Image retrieval by affective features attracts more and more attentions in recent years. Colorful natural scenes are a kind of images with remarkable characteristic...
It is known that moment invariants for general projective transformations do not exist. This paper presents a novel method to derive moment invariants under two types of restricted projective transformations. For each type of restricted projective transformations, a complete set of moment invariants up to arbitrary order is presented in the explicit form. Experimental results indicate that they are...
On the basis of the analysis of human visual system characteristics, combined with Watson visual model, an improved information hiding algorithm based on image DCT (discrete cosine transform) domain is proposed. By experiments and comparisons, the improved algorithm can enhance the imperceptibility of hidden information. In order to improve the anti-JPEG compression property of stego image, according...
Digital subtraction angiography (DSA) is a type of medical imaging technique used in interventional radiology, which can eliminate the interferential background and give prominence to blood vessels by computer processing. By analyzing the characteristics of DSA medical images, this paper proposes a new solution for this particular image de-noising, which is using improved soft thresholding. In order...
The difference of the image generated by real target and digital-image-synthesiser (DIS) is analyzed. Then two methods are deduced to recognize deceivable jamming generated by DIS. One is the uncontinuity of the false target in Doppler section which is caused by the quantization of phase increment. The other is the target number and pose in the imaging field after ISAR processing when the pulse repetition...
Based on the models of image motion blurring and restoring, the element of image blurring caused by rotation motion is analyzed. Three widely used methods for the identification of blurred extent from the rectilinear motion blurred images, Fourier transform, error-parameter curve, and autocorrelation, are introduced in rotation motion blurred image analysis. The feasibility and effectiveness of the...
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