搜索结果: 46-60 共查到“工学 Underwater”相关记录69条 . 查询时间(0.063 秒)
INTEGRATION OF A STRAPDOWN GRAVIMETER SYSTEM IN AN AUTONOMOUS UNDERWATER VEHICLE
Autonomous Underwater Vehicle moving vectorial gravimetry and gradiometry electrostatic accelerometer Unscented Kalman filtering
font style='font-size:12px;'>
2015/4/23
We present a new mobile instrument for measuring dynamically the gravity vector and its gradients in underwater environment, named GRAVIMOB. Our instrument is a strapdown sensor, consisted of electros...
3D MODELS COMPARISON OF COMPLEX SHELL IN UNDERWATER AND DRY ENVIRONMENTS
Underwater Photogrammetry Marine Biology 3D model 3D comparison Camera Calibration
font style='font-size:12px;'>
2015/4/23
In marine biology the shape, morphology, texture and dimensions of the shells and organisms like sponges and gorgonians are very important parameters. For example, a particular type of gorgonian grows...
FILMING UNDERWATER IN 3D RESPECTING STEREOGRAPHIC RULES
Underwater Photography Stereoscopic 3D
font style='font-size:12px;'>
2015/4/23
After an experimental phase of many years, 3D filming is now effective and successful. Improvements are still possible, but the film industry achieved memorable success on 3D movie’s box offices due t...
JOINT ALIGNMENT OF UNDERWATER AND ABOVE-THE-WATER PHOTOGRAMMETRIC 3D MODELS BY INDEPENDENT MODELS ADJUSTMENT
Underwater Photogrammetry Least Square Adjustment Accuracy Independent Models Alignment
font style='font-size:12px;'>
2015/4/23
The surveying and 3D modelling of objects that extend both below and above the water level, such as ships, harbour structures, offshore platforms, are still an open issue. Commonly, a combined and sim...
COMPUTER VISION PHOTOGRAMMETRY FOR UNDERWATER ARCHAEOLOGICAL SITE RECORDING IN A LOW-VISIBILITY ENVIRONMENT
Computer Vision Photogrammetry Recording Underwater Archaeology Shipwrecks Agisoft PhotoScan
font style='font-size:12px;'>
2015/4/23
Computer Vision Photogrammetry allows archaeologists to accurately record underwater sites in three dimensions using simple twodimensional picture or video sequences, automatically processed in dedica...
BLIND DECONVOLUTION ON UNDERWATER IMAGES FOR GAS BUBBLE MEASUREMENT
Underwater Image Processing Measurement Techniques Image Restoration Blind Deconvolution
font style='font-size:12px;'>
2015/4/23
Marine gas seeps, such as in the Panarea area near Sicily (McGinnis et al., 2011), emit large amounts of methane and carbon-dioxide, greenhouse gases. Better understanding their impact on the climate ...
Underwater robot for port security
robot port security
font style='font-size:12px;'>
2014/10/9
Last week, at the International Conference on Intelligent Robots and Systems, MIT researchers unveiled an oval-shaped submersible robot, a little smaller than a football, with a flattened panel on one...
Assessment of Underwater Anthropogenic Noise Associated with Construction Activities in Bechers Bay, Santa Rosa Island, California
Acoustic Monitoring Pile Drilling Mitigation Channel Islands
font style='font-size:12px;'>
2013/3/12
Acoustic monitoring and mitigation of underwater construction noise was conducted during marine pier demolition and reconstruction activities near Santa Rosa Island, California. Activities spanned two...
Oil/Gas Pipeline Leak Inspection and Repair in Underwater Poor Visibility Conditions: Challenges and Perspectives
Pipeline Leaks Detection Spill Close-Visual Inspection Pipeline Repair Pipeline Inspection
font style='font-size:12px;'>
2013/3/11
Mechanical pressure clamps are examples of innovative tools commonly used in the oil and gas industry for arresting leaks from damaged oil and gas pipelines. However, if leaks result from pipeline rup...
A COMPARISON BETWEEN ACTIVE AND PASSIVE TECHNIQUES FOR UNDERWATER 3D APPLICATIONS
Stereo vision underwater imaging dense reconstruction structured-light
font style='font-size:12px;'>
2014/6/5
In the field of 3D scanning, there is an increasing need for more accurate technologies to acquire 3D models of close range objects. Underwater exploration, for example, is very hard to perform due to...
Convex Optimization Algorithms for Cooperative Localization inAutonomous Underwater Vehicles
Autonomous underwater vehicle convex optimization cooperative localization uncertainty region screening algorithm approximation algorithm
font style='font-size:12px;'>
2010/3/29
In this paper, a cooperative localization algorithm for
autonomous underwater vehicles (AUVs) is proposed. A "Parallel"
model is adopted to describe the cooperative localization problem
instead of ...
Bearing and Range Estimation Algorithm for Buried Object in Underwater Acoustics
Bearing Range Estimation Algorithm Buried Object Underwater Acoustics
font style='font-size:12px;'>
2009/9/4
A new algorithm which associates (Multiple Signal Classification) MUSIC with acoustic scattering model for bearing and range estimation is proposed. This algorithm takes into account the reflection an...
Robots swim with the fishesNew robots mimic fish's swimming, could be used in underwater exploration
the fishesNew robots fish's swimming underwater exploration
font style='font-size:12px;'>
2009/9/7
Borrowing from Mother Nature, a team of MIT researchers has built a school of swimming robo-fish that slip through the water just as gracefully as the real thing, if not quite as fast.Mechanical engin...
Behavioral Responses to Underwater Sound in the Small Benthic Octopus Octopus ocellatus
cephalopod hearing octopus
font style='font-size:12px;'>
2009/8/19
To explore behavioral responses to sound and the detectable frequency range of Octopus ocellatus, responses of the octopus to 120 dB rms sound stimuli of various frequencies were observed. The octopus...
Enhancement of Surface Properties of Metal Materials by Underwater Laser Processing
Laser Welding Laser Peening Underwater Maintenance
font style='font-size:12px;'>
2009/6/1
The authors have developed underwater laser processing, namely welding and peening, to enhance surface properties of metallic components. The process developed could significantly reduce radiation dos...