Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 26 for “"Depth image"”.
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Signed distance registration for depth image sequence
New depth camera technology has potential to make a significant impact on computer systems interaction with 3D objects; yet, it is currently limited due to its poor noise and resolution characteristics. In this thesis we propose to use depth camera's strongest characteristic, its video rate capture …
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Algorithms for single-view depth image estimation
Depth sensing is fundamental in autonomous navigation, localization, and mapping. However, existing depth sensors offer many shortcomings, especially low effective spatial resolutions. In order to attain enhanced resolution with existing hardware, this dissertation studies the single-view depth …
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Three-dimensional propagation algorithm for depth image-based rendering
Depth image based rendering (DIBR) is the process of synthesizing new ``virtual'' views from a set of ``real'' views which include color and depth images. Because of its photorealism and less stringent computational requirement, DIBR has many applications such as 3D TV, remote reality, and video …
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Digital Watermarking for Depth-Image-Based Rendering 3D Images and Its Application to Quality Evaluation
… a consequence, the digital watermarking for 3D image and video is attracting considerable attention. The depth-image-based rendering (DIBR) technique has been playing a critical role in 3D contents representation because of its numerous advantages. A good digital watermarking algorithm should be …
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"""Travelling Without Moving"": A Study on the Reconstruction, Compression, and Rendering of Three-Dimensional Environments for Telepresence"
… planar arrays of cameras and generates dense depth maps with multiple values per pixel. Second, we introduce a novel codec for the static depth-image-based representation, which jointly estimates and encodes the unknown depth map from multiple views using a novel rate-distortion optimization …
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A low latency remote rendering system for interactive mobile graphics
… in real-time. My design takes advantage of an image based rendering technique: 3D image warping, to synthesize the final display image on the client from the multiple depth image references generated on the server. This Multi Depth Image approach can successfully reduce the interaction latency …
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Single view object completion
… reconstruction of a 3d object from a single depth image observation. Much effort has been put on multi-view reconstruction of objects with substantial success, but single view recon- struction is still very limited. Initial methods produce only partial reconstructions by projecting a depth …
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Seismic imaging with traveltime and waveform inversion: Naga Thrust and Fold Belt, India
… utility of traveltime and waveform inversion in depth imaging of seismic data with the help of two 2-D multichannel seismic lines, Reg-07 and PO-03, shot perpendicular to the trend of the Naga Thrust and Fold Belt (NTFB), India. I use both lines to demonstrate that a) a velocity model from …
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3D reconstruction of cuboid-shaped objects from labeled images
… boundaries of a cuboid-shaped object shown in an image. The position of the corners of each cuboid are manually labeled, or annotated, in a 2D color image. Given the color image, the labels, and a 2D depth image of the same scene, an algorithm extrapolates a cuboid's 3D position, orientation, and …
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Real-time 3D face localization and verification
… and verification using a consumer-grade depth camera. Our approach consists of three parts: face detection, head pose estimation, and face verification. Face detection is performed using a standard detection framework which we significantly improve by leveraging depth information. To …
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3D model-based pose estimation of rigid objects from a single image for robotics
… We assume that we are operating with RGB-D images and some information about the pose of the camera. We also assume that a 3D mesh model of the object is available, along with a small number of labeled images of the object. The problem is motivated by robot systems operating in indoor …
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Stereo Vision System Module for Low-Cost FPGAs for Autonomous Mobile Robots
… vision uses two adjacent cameras to create a 3D image of the world. A depth map can be created by comparing the offset of the corresponding pixels from the two cameras. However, for real-time stereo vision, the image data needs to be processed at a reasonable frame rate. Real-time stereo vision …
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Autonomous underwater vehicle navigation and mapping in dynamic, unstructured environments
… graph based on multibeam submap matching using depth image correlation, while landmark-based constraints are used in the graph where visual features are available. The two types of constraints work in concert in a single optimization, fusing information from both types of mapping sensors and …
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3D digital relief generation.
… generation method has been proposed, based on 2D images. An improvement of bas relief and high relief generation method based on 3D models has been provided as well, that employs mesh representation to process the model. This thesis is innovative in describing and evaluating sunken relief …
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Autonomous underwater vehicle navigation and mapping in dynamic, unstructured environments
… graph based on multibeam submap matching using depth image correlation, while landmark-based constraints are used in the graph where visual features are available. The two types of constraints work in concert in a single optimization, fusing information from both types of mapping sensors and …
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Point cloud alignment in arm reconstruction for lymphedema detection by iterating pairwise ICP
… 8 inexpensive positionally fixed realsense sr300 depth cameras in a frame that can be placed on a flat surface, and used to scan a patient's arm in order to build a 3D mesh that can be used to extract not only the total volume of the arm but also the volume of specific segments. A special focus is …
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Depth sensor based object detection using surface curvature
An object detection system finds objects from an image or video sequence of the real world. The good performance of object detection has been largely driven by the development of well-established robust feature sets. By using conventional color images as input, researchers have achieved major …
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Alternative approaches to optophonic mappings
… by the auditory system when converting scene images to sound. Various image processing and stereo techniques have been employed to artificially emulate the human visual system through the use of depth maps that successfully fade out the quantity of relatively unimportant image features, whilst …
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Aspect of image quality and the Internet
The colour reproduction of images viewed across the Internet is an area of significant importance due to the recent increase in the levels of on-line shopping and the number of digital imaging libraries accessible over the Internet. The quality of images viewed on-line can be affected by variables …
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Scaling 3D Scene Perception via Probabilistic Programming
… often “see” that world through pixels and images. In order to build truly intelligent AI systems, we must go beyond pixels and images and build 3D vision systems that can build meaningful and useful 3D representations of the world. This is the problem of 3D scene perception. How do we …
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