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 28 for “"Depth Camera"”.
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Depth camera calibration using depth measurements
… acquisition field is the emergence of low cost depth cameras that measure the scalar distance between the objects present in the scene and the cameras. These cameras project infra-red rays and use time of flight to measure the distance at each pixel. These cameras have the potential to …
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3D face modeling with a consumer depth camera
… typically expensive. Recently, low-cost consumer depth cameras have become widely available due to the success of Microsoft's Kinect camera. The Kinect is an active sensor that provides depth images at video rate; however, the images are often noisy and missing measurements. In this thesis, we …
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Image restoration from noisy and limited measurements with applications in 3D imaging
… and applied for 3D model reconstruction with a depth camera, which is a recently introduced device with many potential applications in 3D imaging and human-machine interaction. Currently, the depth camera is limited in resolution and suffers from complex types of noise. In the proposed method, …
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Autonomous UAV-UGV robot collaboration for exploration and mapping of unknown environments
… overcome UGV obstacle detection limitations. UAV depth camera data is processed to detect and incorporate previously unseen obstacles into the UGVs’ navigation schemes, enabling avoidance. Experimental validation demonstrates the effectiveness of both methods in enhancing system autonomy. The …
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Autonomous ground cover clearing utilizing a robotic wheel loader
… articulation. The sensor suite comprises a depth camera used for Simultaneous Localization and Mapping (SLAM) and material detection. Potentiometers for joint positioning, motor encoder for distance measurements and an ultrasonic rear sensor for obstruction detection are implemented on the …
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Computer Vision Applications for Autonomous Aerial Vehicles
… proliferation of special vision sensors, such as depth cameras, lidar sensors and thermal cameras, and major breakthroughs in computer vision and machine learning fields accelerated the advance of UAV research and technology. However, due to certain unique challenges imposed by UAVs, such as …
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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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A platform for reaching into the environment of a remote collaborator
… explore the use of a Head Mounted Display (HMD), depth camera and wearable haptic devices to create a system that (1) enables a remote user to be immersed in another first-person's point of view, (2) offers a new way for the remote expert to provide guidance through three dimensional, real-time …
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The mechanical and algorithmic design of in-field robotic leaf sampling device
… level, (3) Combine point cloud data from the depth camera and vison data from the camera via the sensor fusion to get the leaf rolling angle and grasp point. The method in this thesis can produce a consistent leaf rolling angle estimate quantitatively and qualitatively on multiple corn leaves, …
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Images and depth for high resolution, low-latency sensing and security applications
The thesis focuses on using images and depths for high resolution, low latency sensing, and then using these sensing techniques to build security applications. First, we introduce the usefulness of high quality depth sensing, and the difficulty to acquire such depth stream via pure hardware …
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Design and Implementation of an Interactive Animatronic System for Guest Response Analysis
… and sound effects. Human identification, using a depth camera (Carmine from PrimeSense), an open-source middleware (NITE from OpenNI), Java-based Processing and an Arduino microcontroller, has been implemented into the system in order to track a guest or guests, within the field of view of the …
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Advancing In-hand Dexterous Manipulation via Machine Learning
… the hand facing downward using an inexpensive depth camera. To train such a system, the thesis proposes techniques for robots to learn to reorient objects with a downward-facing hand in the air. It also proposes multiple techniques to improve the time efficiency of the learning algorithms. …
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Space and motion : data based rules of public space pedestrian motion
… can elucidate spatial behavior. Advancements in depth camera sensors and computer vision algorithms have eased the task of tracking human movements to millimetric precision. This thesis proposes two main ideas: creating statistics from people's motion data for grounding simulations and measuring …
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Tracking and counting motion for monitoring food intake based on depth sensor
… The device used was Kinect Xbox One which used a depth camera to detect the motion of a person’s gesture and posture during food intake. Previous studies have shown that most of the methods used to count food intake device is worn device type. The recent trend is now going towards non-wearable …
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Novel haptic interface For viewing 3D images
… immersion. Usually these systems only improve depth perception by relying on the stereopsis phenomenon. We propose a system that improves the user experience and immersion by having a position dependent rendering of the scene and the ability to touch the scene. This system uses depth maps to …
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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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System specific power reduction techniques for wearable navigation technology
… working with a smaller and less power intensive depth camera. The first portion of this work focuses on the wearable navigation prototype built around Texas Instrument's OPT9220/9221 Time of Flight chipset. Illumination voltage, frame rate, and integration duty cycle are identied as key control …
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Precision Robotics with Mid-Weight Hardware and Software: A Swerve Drive Implementation
… drive robot, leveraging an Intel RealSense D435i depth camera, to navigate a room using the slam toolbox and Nav2 stack. This robot uses a Raspberry Pi 5 as its main compute. A swerve drive is a unique hybrid of traditional four-wheel drive and mecanum drive systems. Pivoting radially, they offer …
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Duplex camera portable motion capture system for single athlete’s performance analysis
In recent years, introduction of depth camera in motion capture have caught a massive attention by both researchers and biomechanists. Therefore, high-performance sports certainly require motion capture technology to compete with other competitors. Thus, a study involving quantitative analysis is …
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Applications of RGB-D Cameras in Healthcare
RGB-D cameras are a type of imaging device that includes a standard colour camera and a depth sensor. The depth sensor records depth images, where each pixel measures the distance of the target from the camera. Using data from the RGB-D camera, we can recon- struct a three-dimensional scene. Since …
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