We have investigated the image type full-color computer-generated hologram that has full parallax and can be reconstructed with three color LEDs. The object of the hologram is processed from 3D computer graphics polygon data and has shaded surface with hidden surface removal. The optical reconstructed image from the printed hologram is evaluated. © 2011 Optical Society of America OCIS codes: 09...

1047-3203/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.jvcir.2011.03.011 ⇑ Corresponding author. Fax: +886 4 26324045. E-mail addresses: [email protected] (J.-C. Chuang This paper proposes an image authentication scheme which detects illegal modifications for image vector quantization (VQ). In the proposed scheme, the index table is divided into non-overlapping index blocks. The authen...

In the present world when whole web is now coming on from text data to multimedia data, one of the major security concerns is the protection of this multimedia data. Image, which covers the highest percentage of the multimedia data, its protection is very important. This can be achieved by Image encryption. There are so many different techniques should be used to protect confidential image data...

The restoration of a blurry or noisy image is commonly performed with a MAP estimator, which maximizes a posterior probability to reconstruct a clean image from a degraded image. A MAP estimator, when used with a sparse gradient image prior, reconstructs piecewise smooth images and typically removes textures that are important for visual realism. The three public datasets that were used in the ...

1077-3142/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.cviu.2011.04.001 ⇑ Corresponding author. E-mail address: [email protected] (Y. Efficient and effective image segmentation is an important task in computer vision and pattern recognition. Since fully automatic image segmentation is usually very hard for natural images, interactive schemes with a few simple user inputs are...

0957-4174/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.eswa.2011.11.078 ⇑ Corresponding author. E-mail addresses: [email protected] (B. Bataine Norul Huda Sheikh Abdullah), [email protected] (K. O The binary image is essential to image formats where the textual image is the best example of the binary image representation. Feature extraction is a fundamental process in pattern recognition. ...

We propose a fast algorithm for the identification of localised brain regions from medical images that discriminate between two groups of individuals. The method is based on a combination of penalised regression and a data resampling procedure. We apply this approach to both MRI and PET images for the classification of subjects with Alzheimer’s disease and mild cognitive impairment. We show tha...

Endmember extraction integrated with spatial information has been concerned on some research recently. In this paper we studies an improved endmember extraction method with spatial preprocessing module which use watershed with normalized cuts to avoid oversegmentation and produce accurate results from spectral mixture analysis. The spatial-spectral endmember extraction method which used the adv...