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A watermarking algorithm for the infrared image copyright protection was developed. The whole process was based on integer wavelet transform. Encrypt the grey scale image watermark by Logistic chaotic sequence, and then decompose based on integer wavelet. Select the perceptually significant wavelet coefficients, and then inosculate in the given position of the original image. The watermark was detected...
The surface color of some mature fruit has little difference with the background color or the entire fruit surface color has inconsistent under the nature growth condition. This fruit image segmentation is very difficulty with the color threshold or the segmentation result is the serious error of the goal outline. A new mutual information threshold iteration segmentation method based on the multi-spectrum...
Image fusion involves merging two or more images in such a way as to retain the most desirable characteristics of each. When a color visible image is fused with infrared image, the desired result is a color image with natural color appearance and full information. In this paper, an introduction to empirical mode decomposition (EMD) theory and the results from three image fusion schemes based on EMD-complex...
A novel color fusion method is proposed for infrared and color visible images which based on the Bidimensional Empirical Model Decomposition (BEMD). Firstly, the original color visible image is transformed into the IHS color space. Then, the intensity component (I) and infrared image are decomposed into a set of Intrinsic Mode Functions (IMFs) and residues respectively by means of the BEMD. The gray...
A novel fusion method is proposed for image sequence which based on the non-Gaussian statistical modeling of wavelet coefficients and image enhancement in IHS color space of color visible image. Firstly, the original color visible image is transformed into a perceptually decorrelated color space in order to treat the achromatic and chromatic components separately. Then, the achromatic component and...
A novel region-based color mapping method is proposed to render fused image of visible and infrared (IR). The method is based on image segmentation, region recognition, image fusion and color transfer. Firstly visible image and IR image are fused based on the curvelet transform. At the same time, a color database is formed by grouping a set of natural color images according to their scene contents...
Power-Law detector based on DFT is developed to detect a moving dim target under heavy infrared background. Because that the grey-scale value of a pixel in an image occurs fluctuation when a target passes by, this fluctuation can be viewed as a weak transient signal, and the Power-Law processor has advanced performance on transient signal detection. Firstly, a time window, length of L frames, is introduced...
This paper presents an analysis of color-, infrared-, and multimodal-stereo approaches to pedestrian detection. We design a four-camera experimental testbed consisting of two color and two infrared cameras for capturing and analyzing various configuration permutations for pedestrian detection. We incorporate this four-camera system in a test vehicle and conduct comparative experiments of stereo-based...
A novel contrast enhanced fusion (CEF) method is presented for merging infrared and color visible images. The method transforms the original RGB color visible image into a perceptually decorrelated color space in order to treat the achromatic and chromatic components separately. The achromatic component and infrared image are combined by a grayscale fusion scheme, and the original achromatic component...
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