A new Depth image Layers Separation (DILS) algorithm for synthesizing inter-view images based on disparity depth map layers representation is presented. The approach is to separate the depth map into several layers id...
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Face detection for low quality images and different face positions is a very challenging task. This paper presents a hybrid method for face detection to these problems. The algorithm starts with image resizing process...
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ISBN:
(纸本)9781479902699;9781479902675
Face detection for low quality images and different face positions is a very challenging task. This paper presents a hybrid method for face detection to these problems. The algorithm starts with image resizing process followed by the Gaussian Mixture Model to calculate the skin likelihood value of pixel in an image. Then, the skin regions are extracted from the background with a proper threshold value obtained adaptively based on image information. This study developed an algorithm to performed face location and detection. This study used face database from University of Ljubljana (Slovenia) computervision Laboratory (CVL), which contains seven 2D images corresponding to 114 different individuals, to evaluate the proposed system. The resolution of the images is 640*480 pixels. Another database, the Bao database which consists of 157 images with image resolutions within 57x85 pixels and 300 x 300 pixels is chosen. The detection accuracy for frontal face and side face images on CVL database is 94.4% and 84.7% respectively. The detection accuracy on Bao database is 93.6%.
A novel Multi-Level View Synthesis (MLVS) approach for 3D vision and free-viewpoint video applications, such as light field imaging, is presented. MLVS exploits the advantages of Depth image Layer Separation (DILS), a...
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In Scalable Video Coding(SVC) the coding efficiency for hierarchical prediction structures is highly dependent on how to choose the quantization parameters(QP) for pictures of different temporal layers. For pictures t...
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ISBN:
(纸本)9780819495587
In Scalable Video Coding(SVC) the coding efficiency for hierarchical prediction structures is highly dependent on how to choose the quantization parameters(QP) for pictures of different temporal layers. For pictures that have strong temporal correlation and pictures at low bitrate, large peak SNR(PSNR) fluctuations will be produced when using the strategy presented in the proposal JVT-P014. In order to decrease the fluctuations this paper proposed a new method which combines the persistence of vision to decrease the fluctuations of the video quality. Simulated results show that the proposed technique is efficient. When compared with the method in the proposal JVT-P014, the PSNR difference decreases is about 20%, and it is more effectively for the pictures with strong temporal correlation. The algorithm in this paper provides valuable references for further study of optimizing encoder.
Referred to the problem a manufacturer always faces that bottles in a casket are missing, caused by the bottles leaning down. Checking the parceling by human causes high risk from the explosion of the lean-down bottle...
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We present an analysis framework for large studies of multimodal clinical quality brain image collections. processing and analysis of such datasets is challenging due to low resolution, poor contrast, misaligned image...
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computervision is a diverse and relatively new field of study. Object tracking plays a crucial role as a preliminary step for high-level imageprocessing in the field of computervision. However, mean shift algorithm...
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The proceedings contain 71 papers. The topics discussed include: a conversational collaborative filtering approach to recommendation;orthogonal nonnegative matrix factorization for blind image separation;a hybrid robu...
ISBN:
(纸本)9783319029573
The proceedings contain 71 papers. The topics discussed include: a conversational collaborative filtering approach to recommendation;orthogonal nonnegative matrix factorization for blind image separation;a hybrid robust image watermarking scheme using integer wavelet transform, singular value decomposition and Arnold transform;near-optimal Moire grating for chaotic dynamic visual cryptography;integrated communication for truck monitoring in solid waste collection systems;a geometrical approach for age-invariant face recognition;face verification using multiple localized face features;adaptive motion pattern analysis for machine vision based moving detection from UAV aerial images;a simple standalone sign based recognition translator without using super computerprocessing;enhanced image super-resolution technique using convolutional neural network;comparison of edge detection technique for lane analysis by improved Hough transform;performances of invariant feature detectors in real-time video applications;and fast and efficient video completion using object prior position.
The quality of the repaired image will be directly influenced by the error accumulation of initial repaired for the target block in the exemplar-based algorithm. According to analysis of the pixel39;s surrounding im...
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ISBN:
(纸本)9781479905607
The quality of the repaired image will be directly influenced by the error accumulation of initial repaired for the target block in the exemplar-based algorithm. According to analysis of the pixel's surrounding image features, a new algorithm which joint structure characteristics and color differences is proposed in this paper. This algorithm considers the color differences and structure characteristics simultaneous, the experimental results show that the repaired image's vision quality can be increased effectively.
In this investigation, a measurement system based on machine vision applied for auto-hub39;s eccentricity between the center hole and the pitch circle of bolt holes was proposed. The measurement system was integrate...
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