20 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
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
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
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...
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Chapter and Conference Paper
Super-Resolution of Multiple Moving 3D Objects with Pixel-Based Registration
In this paper, we propose a super-resolution technique for multiple independently moving 3D objects from a single camera, the camera is also allowed to move freely. Previous techniques were mostly focused on p...
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Chapter and Conference Paper
Improved Space Carving Method for Merging and Interpolating Multiple Range Images Using Information of Light Sources of Active Stereo
To merge multiple range data obtained by range scanners, filling holes caused by unmeasured regions, the space carving method is a simple and effective method. However, this method often fails if the number of...
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Chapter and Conference Paper
Shape Reconstruction from Cast Shadows Using Coplanarities and Metric Constraints
To date, various techniques of shape reconstruction using cast shadows have been proposed. The techniques have the advantage that they can be applied to various scenes including outdoor scenes without using sp...
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Chapter and Conference Paper
Dense 3D Reconstruction with an Uncalibrated Active Stereo System
In this paper, we describe a novel uncalibrated active stereo system using coded structured light. Structured-light-based active stereo systems generally consist of a camera and projector that require precise ...
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Chapter and Conference Paper
Dexterous manipulations of humanoid Robot Saika
This article addresses the development of a humanoid robot named Saika and skillful manipulations performed by Saika. The developed humanoid robot Saika has a two-DOF neck, dual five-DOF upper arms, a torso and a...
