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This paper presents an iris segmentation algorithm. The proposed technique applies a histogram based method on the input eye image extracting a point within the pupil. The image is then intensity sampled over M equiangular radial scan line, generating M 1-dimensional signals. A Fuzzy multi-scale edge detection algorithm is then applied to each of the resulting radii signals, to accurately detect and...
Wavelet transform have been used in many image enlargement techniques and shows superior results compared to conventional image resolution enhancement techniques. However, the choice of wavelets for image enlargement has not been fully investigated. This paper presents an investigation on the performance of a generic wavelet based image enlargement technique, with respect to the choice of wavelets...
Development of stereo video codecs in latest multi-view extension of HEVC (MV-HEVC) with higher compression efficiency has been an active area of research. In this paper, a frame interleaved stereo video coding scheme based on MVHEVC standard codec is proposed. The proposed codec applies a reduced layer approach to encode the frame interleaved stereo sequences. A frame interleaving algorithm is developed...
In this paper a multi-wavelet and cycle-spinning based image resolution enhancement technique is presented. The proposed technique generates a high-resolution image for the input low-resolution image using the input image and an inverse multi-wavelet transform (all multi-wavelet high frequency subbands' coefficients are set to zero). The concept of the cycle spinning algorithm in conjunction with...
Direct application of compressive sampling in coding wavelet high frequency coefficients of an image, is unpleasantly deteriorating the quality of the reconstructed image. This is due to an error introduced by many high frequency coefficients that have small but nonzero values. In this paper, a novel multi-resolution image coding scheme using compressive sampling and perceptual weights is presented...
The impact of camera separation on the performance of an H.264/ AVC-based stereo-vision codec is investigated. To achieve this, the H.264/AVC software has been modified to support stereoscopic video coding. Results were generated using two sets of wide baseline convergent multi-view test videos: Breakdancers and Ballet. To generate a set of synchronised stereo-videos from the same scene with different...
A new Multiscale Fuzzy Reasoning (MFR) based image-processing technique for automatic object extraction is described. MFR utilizes skewed versions of an input frame wherein each skewed frame is processed independently using fuzzy reasoning. MFR achieves optimal edge detection using the wavelet decomposition followed by a novel fuzzy based decision technique. The processed frames are de-skewed and...
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