394 research outputs found
A Global Nearest-Neighbour Depth Estimation-based Automatic 2D-to-3D Image and Video Conversion
The proposed work is to present a new method based on the radically different approach of learning the 2D-to-3D conversion from examples. It is based on lobally estimating the entire depth map of a query image directly from a repository of 3D images (image depth pairs or stereo pairs) using a nearest-neighbour regression type idea
A Global Nearest-Neighbour Depth Estimation-based Automatic 2D-to-3D Image and Video Conversion
The proposed work is to present a new method based on the radically different approach of learning the 2D-to-3D conversion from examples. It is based on lobally estimating the entire depth map of a query image directly from a repository of 3D images (image depth pairs or stereo pairs) using a nearest-neighbour regression type idea
Hierarchical Hole-filling For Depth-based View Synthesis In Ftv And 3d Video
Methods for hierarchical hole-filling and depth adaptive hierarchical hole-filling and error correcting in 2D images, 3D images, and 3D wrapped images are provided. Hierarchical hole-filling can comprise reducing an image that contains holes, expanding the reduced image, and filling the holes in the image with data obtained from the expanded image. Depth adaptive hierarchical hole-filling can comprise preprocessing the depth map of a 3D wrapped image that contains holes, reducing the preprocessed image, expanding the reduced image, and filling the holes in the 3D wrapped image with data obtained from the expanded image. These methods are can efficiently reduce errors in images and produce 3D images from a 2D images and/or depth map information.Georgia Tech Research Corporatio
Methods for reducing visual discomfort in stereoscopic 3D: A review
This work was supported by the EPSRC Grant EP/M01469X/1, “Geometric Evaluation of Stereoscopic Video”
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End-to-end 3D video communication over heterogeneous networks
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Three-dimensional technology, more commonly referred to as 3D technology, has revolutionised many fields including entertainment, medicine, and communications to name a few. In addition to 3D films, games, and sports channels, 3D perception has made tele-medicine a reality. By the year 2015, 30% of the all HD panels at home will be 3D enabled, predicted by consumer electronics manufacturers. Stereoscopic cameras, a comparatively mature technology compared to other 3D systems, are now being used by ordinary citizens to produce 3D content and share at a click of a button just like they do with the 2D counterparts via sites like YouTube. But technical challenges still exist, including with autostereoscopic multiview displays. 3D content requires many complex considerations--including how to represent it, and deciphering what is the best compression format--when considering transmission or storage, because of its increased amount of data. Any decision must be taken in the light of the available bandwidth or storage capacity, quality and user expectations. Free viewpoint navigation also remains partly unsolved. The most pressing issue getting in the way of widespread uptake of consumer 3D systems is the ability to deliver 3D content to heterogeneous consumer displays over the heterogeneous networks. Optimising 3D video communication solutions must consider the entire pipeline, starting with optimisation at the video source to the end display and transmission optimisation. Multi-view offers the most compelling solution for 3D videos with motion parallax and freedom from wearing headgear for 3D video perception. Optimising multi-view video for delivery and display could increase the demand for true 3D in the consumer market. This thesis focuses on an end-to-end quality optimisation in 3D video communication/transmission, offering solutions for optimisation at the compression, transmission, and decoder levels.Brunel University - Isambard Research Scholarshi
Attention-Aware Disparity Control in interactive environments
Cataloged from PDF version of article.Our paper introduces a novel approach for controlling
stereo camera parameters in interactive 3D environments
in a way that specifically addresses the interplay
of binocular depth perception and saliency of scene contents.
Our proposed Dynamic Attention-Aware Disparity
Control (DADC) method produces depth-rich stereo rendering
that improves viewer comfort through joint optimization
of stereo parameters. While constructing the optimization
model, we consider the importance of scene elements, as
well as their distance to the camera and the locus of attention
on the display. Our method also optimizes the depth
effect of a given scene by considering the individual user’s
stereoscopic disparity range and comfortable viewing experience
by controlling accommodation/convergence conflict.
We validate our method in a formal user study that also reveals
the advantages, such as superior quality and practical
relevance, of considering our method.© Springer-Verlag Berlin Heidelberg 2013
State of the art review on walking support system for visually impaired people
The technology for terrain detection and walking support system for blind people has
rapidly been improved the last couple of decades but to assist visually impaired people may have
started long ago. Currently, a variety of portable or wearable navigation system is available in the
market to help the blind for navigating their way in his local or remote area. The focused
category in this work can be subgroups as electronic travel aids (ETAs), electronic orientation
aids (EOAs) and position locator devices (PLDs). However, we will focus mainly on electronic
travel aids (ETAs). This paper presents a comparative survey among the various portable or
wearable walking support systems as well as informative description (a subcategory of ETAs or
early stages of ETAs) with its working principal advantages and disadvantages so that the
researchers can easily get the current stage of assisting blind technology along with the
requirement for optimising the design of walking support system for its users
Attention-aware disparity control in interactive environments
Our paper introduces a novel approach for controlling stereo camera parameters in interactive 3D environments in a way that specifically addresses the interplay of binocular depth perception and saliency of scene contents. Our proposed Dynamic Attention-Aware Disparity Control (DADC) method produces depth-rich stereo rendering that improves viewer comfort through joint optimization of stereo parameters. While constructing the optimization model, we consider the importance of scene elements, as well as their distance to the camera and the locus of attention on the display. Our method also optimizes the depth effect of a given scene by considering the individual user's stereoscopic disparity range and comfortable viewing experience by controlling accommodation/convergence conflict. We validate our method in a formal user study that also reveals the advantages, such as superior quality and practical relevance, of considering our method. © 2013 Springer-Verlag Berlin Heidelberg
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