27 Result(s)
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Chapter and Conference Paper
AutoEnhancer: Transformer on U-Net Architecture Search for Underwater Image Enhancement
Deep neural architecture plays an important role in underwater image enhancement in recent years. Although most approaches have successfully introduced different structures (e.g., U-Net, generative adversarial...
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Chapter and Conference Paper
GCN-Calculated Graph-Feature Embedding for 3D Endoscopic System Based on Active Stereo
One of the promising fields for active-stereo sensors is medical applications such as 3D endoscope systems. For such systems, robust correspondence estimation between the detected patterns and the projected pa...
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Chapter and Conference Paper
Dense Pixel-Wise Micro-motion Estimation of Object Surface by Using Low Dimensional Embedding of Laser Speckle Pattern
This paper proposes a method of estimating micro-motion of an object at each pixel that is too small to detect under a common setup of camera and illumination. The method introduces an active-lighting approach...
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Chapter and Conference Paper
Robust Structured Light System Against Subsurface Scattering Effects Achieved by CNN-Based Pattern Detection and Decoding Algorithm
To reconstruct 3D shapes of real objects, a structured-light technique has been commonly used especially for practical purposes, such as inspection, industrial modeling, medical diagnosis, etc., because of sim...
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Chapter and Conference Paper
Wide-Area Shape Reconstruction by 3D Endoscopic System Based on CNN Decoding, Shape Registration and Fusion
For effective in situ endoscopic diagnosis and treatment, dense and large areal shape reconstruction is important. For this purpose, we develop 3D endoscopic systems based on active stereo, which projects a grid ...
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Chapter and Conference Paper
Auto-calibration Method for Active 3D Endoscope System Using Silhouette of Pattern Projector
In this paper, we develop an active stereo system for endoscope which requires auto-calibration, because a micro pattern projector is inserted through the instrument channel during an operation and cannot be f...
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Chapter and Conference Paper
3D Endoscope System Using Asynchronously Blinking Grid Pattern Projection for HDR Image Synthesis
3D endoscopic systems have been researched and developed to measure the actual shape and size of living tissues for the purpose of remote surgery and diagnosis, to name a few. For such systems, active stereo t...
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Chapter and Conference Paper
Simultaneous Independent Image Display Technique on Multiple 3D Objects
We propose a new system to visualize depth-dependent patterns and images on solid objects with complex geometry using multiple projectors. The system, despite consisting of conventional passive LCD projectors,...
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Chapter and Conference Paper
A Triangle Mesh Reconstruction Method Taking into Account Silhouette Images
In this paper, we propose a novel approach to reconstruct triangle meshes from point sets by taking the silhouette of the target object into consideration. Recently, many approaches have been proposed for comp...
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Chapter and Conference Paper
Underwater Active Oneshot Scan with Static Wave Pattern and Bundle Adjustment
Structured Light Systems (SLS) are widely used for various purposes. Recently, a strong demand to apply SLS to underwater applications has emerged. When SLS is used in an air medium, the stereo correspondence ...
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Chapter and Conference Paper
Two Plane Volumetric Display for Simultaneous Independent Images at Multiple Depths
We propose a new projection system to visualise different independent images simultaneously on planes placed at different depths within a volume using multiple projectors. This is currently not possible with t...
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Chapter and Conference Paper
Tissue Shape Acquisition with a Hybrid Structured Light and Photometric Stereo Endoscopic System
In situ 3D reconstruction from endoscopic images is important to determine the correct course of action for, e.g., treatment of abnormal growths. Currently, the endoscopist has to rely solely on visual c...
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Chapter and Conference Paper
Shape Acquisition and Registration for 3D Endoscope Based on Grid Pattern Projection
For effective endoscopic diagnosis and treatment, size measurement and shape characterization of lesions, such as tumors, is important. For this purpose, 3D endoscopic systems based on active stereo to measure...
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Chapter and Conference Paper
A Comparative Study on Self-Adaptive Differential Evolution Algorithms for Test Functions and a Real-World Problem
This paper compares novel self-adaptive Differential Evolution algorithms (SADEs) on noisy test functions to see how robust the algorithms are against noise in fitness function. This paper also compares the pe...
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Chapter and Conference Paper
Exemplar-Based Hole-Filling Technique for Multiple Dynamic Objects
Entire shape reconstruction of dynamic objects is an important research subject with applications on film production, virtual reality, modeling and engineering. Typically, entire shape reconstruction of real o...
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Chapter and Conference Paper
Extraction and Visualization of Cardiac Beat by Grid-Based Active Stereo
We propose a method to observe cardiac beat from 3D shape information of body surface by using grid-based active stereo, and report preliminary experiments to evaluate validities of the proposed method. By com...
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Chapter and Conference Paper
Behavioral Tendency Obfuscation Framework for Personalization Services
Web service providers collect user behaviors, such as purchases or locations, and use this information to provide personalized content. While no provider can collect behavioral information across different ser...
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Chapter and Conference Paper
Single Color One-Shot Scan Using Topology Information
In this paper, we propose a new technique to achieve one-shot scan using single color and static pattern projector; such a method is ideal for acquisition of a moving object. Since a projector-camera systems g...
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Chapter and Conference Paper
Dynamic Compression of Curve-Based Point Cloud
With the increasing demands for highly detailed 3D data, dynamic scanning systems are capable of producing 3D+t (a.k.a. 4D) spatio-temporal models with millions of points recently. As a consequence, effective 4D ...
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Chapter and Conference Paper
Video Deblurring and Super-Resolution Technique for Multiple Moving Objects
Video camera is now commonly used and demand of capturing a single frame from video sequence is increasing. Since resolution of video camera is usually lower than digital camera and video data usually contains...
