On the Road to Large-Scale 3D Monocular Scene Reconstruction using Deep Implicit Functions

2021 ◽  
Author(s):  
Thomas Roddick ◽  
Benjamin Biggs ◽  
Daniel Olmeda Reino ◽  
Roberto Cipolla
Keyword(s):  
Large Scale ◽  
Scene Reconstruction ◽  
Implicit Functions ◽  
The Road ◽  
On The Road

High precision and high resolution monitoring of subsurface changes with DAS and airgun

2020 ◽  
Author(s):  
Baoshan Wang ◽  
Xiangfang Zeng ◽  
Jun Yang ◽  
Yuansheng Zhang ◽  
Zhenghong Song ◽  
...  
Keyword(s):  
Large Scale ◽  
Fiber Optic ◽  
Epicentral Distance ◽  
Low Cost ◽  
Fiber Optic Cable ◽  
The Road ◽  
Air Gun ◽  
Distributed Acoustic Sensing ◽  
On The Road ◽  
Road Crossing

<p>Recently large-volume airgun arrays have been used to explore and monitor the subsurface structure. The airgun array can generate highly repeatable seismic signals, which can be traced to more than 200 km. And the airgun source can be ignited every 10 minutes. The airgun source makes it possible to precisely monitor subsurface changes at large scale. The spatial resolution of airgun monitoring is poor subjecting to the receiver distribution. The distributed acoustic sensing (DAS) technique provides a strategy for low-cost and high-density seismic observations. Two experiments combing DAS technique and airgun source were conducted at two sites with different settings. At the first site, a telecommunication fiber-optic cable in urban area was used. After moderate stacking, the airgun signal emerges on the 30-km DAS array at about 9 km epicentral distance. In the second experiment, a 5-km cable was deployed from the airgun source to about 2 km away. About 800-m cable was frozen into the ice above the air-gun, the rest cable was cemented on the road crossing through a fault. And the airgun has been fired continuously for more than 48 hours with one-hour interval. On the stacking multiple shots’ records, the wavefield in fault zone emerges too. These two experiments demonstrate the feasibility of using various fiber-optic cables as dense array to acquire air-gun signal in different environments and to monitor the subsurface changes.</p>

Air-Car

2005 ◽  
Author(s):  
Mahmood Anwar
Keyword(s):  
Lift Force ◽  
Third World ◽  
Large Scale ◽  
Ground Level ◽  
The Body ◽  
Stream Line ◽  
Traffic Jam ◽  
Traffic System ◽  
The Road ◽  
On The Road

The name of my proposing project is “air-car”. Now a day’s traffic jam is common problem of the mega city, especially in third world countries. so, if we design the traffic system such that the light vehicles like car will flies over certain height from the ground level about 100-200 ft and the heavy vehicle like bus, truck, lorry, etc. will run on the road simultaneously then the traffic jam will be minimize with a large scale. Let us introduce with the concept “air-car”. Air car is the vehicle which can run in both way of air and road. That means that it can fly over a certain height from the ground and also run in the road as usual. We know that for the car design is such the lift force is minimized than the drag force. I want to design for the car such that, when the car has to fly lift force will be increase as much as it can fly for the required height. The body of the car also be a stream line body and the flap, aileron, rudder also be added. But this should be hidden at the time of running in the road.

International Large-Scale Vehicle Corpora for Research on Driver Behavior on the Road

2011 ◽  
Vol 12 (4) ◽  
pp. 1609-1623 ◽  
Author(s):  
Kazuya Takeda ◽  
John H. L. Hansen ◽  
Pınar Boyraz ◽  
Lucas Malta ◽  
Chiyomi Miyajima ◽  
...  
Keyword(s):  
Large Scale ◽  
Driver Behavior ◽  
The Road ◽  
On The Road

scholarly journals Analysis of the advancements in real-life performance of highly automated vehicles' with regard to the road traffic safety

2018 ◽  
Vol 231 ◽  
pp. 05003 ◽  
Author(s):  
Arkadiusz Matysiak ◽  
Paula Razin
Keyword(s):  
Traffic Safety ◽  
Large Scale ◽  
Road Traffic ◽  
Real Life ◽  
Automated Vehicles ◽  
Automated Driving ◽  
The Road ◽  
Road Traffic Safety ◽  
On The Road ◽  
The Impact

The article presents the analysis of the performance of the vehicles equipped with automated driving systems (ADS) which were tested in real-life road conditions from 2015 to 2017 in the state of California. It aims at the effort to assess the impact on the road safety the continuous technological advancements in driving automation might have, based on of the first large-scale, real-life test deployments. Vehicle manufacturers and other stakeholders testing the highly automated vehicles in California are obliged to issue yearly reports which provide an insight on the test scale as well as the technology maturity. The so-called 'disengagement reports' highlight the range and number of control takeovers between the ADS and driver, which are made either based on driver's decision or information provided by the vehicle itself. The analysis of these reports allowed to investigate the development made in automated driving technology throughout the years of tests, as well as the direct or indirect influence of the external factors (e.g. various weather conditions) on the ADS performance. The results show that there is still a significant gap in reliability and safety between human drivers and highly automated vehicles which has been yet steadily decreasing due to technology advancements made while driving in the specific infrastructure and traffic conditions of California.

Context-Aware Service Discovery in Ubiquitous Computing

2009 ◽  
pp. 1087-1095
Author(s):  
Huaqun Guo ◽  
Daqing Zhang ◽  
Lek-Heng Ngoh ◽  
Song Zheng ◽  
Wai-Choong Wong
Keyword(s):  
Ubiquitous Computing ◽  
Service Discovery ◽  
Large Scale ◽  
Technical Problem ◽  
Personal Digital Assistant ◽  
Context Aware ◽  
Wireless Devices ◽  
The Road ◽  
On The Road ◽  
Context Aware Service

The decreasing cost of networking technology and network-enabled devices is driving the large scale deployment of such networks and devices so as to offer many new and innovative services to users in ubiquitous computing. For example, when you carry your mobile laptop or personal digital assistant (PDA) around, or drive on the road, various services have been made available, ranging from finding a local printer to print a file, to instantaneously knowing about the traffic situation from traffic-cameras and other sensors along a highway. To achieve the above, every participating network- enabled end-device must solve an interesting technical problem, i.e., to locate a particular network service or device out of hundreds of thousands of accessible services and devices. Such service advertising and discovery is important as mobile devices and mobile wireless devices proliferate on networks. For this reason, a service discovery and advertising protocol is an important tool to help these devices find services on the network wherever they connect, and to let other network users know about the services they are offering. Context-aware service discovery, on the other hand, would help users to find services that are most appropriate based on fast-changing client conditions, such as location. For example, most laptops are statically configured to print to dedicated office printers. With the help of the context-awareness, a laptop could find the nearest accessible printer attached to the network that the laptop is currently plugged into.

Road Surface Characteristics and Skidding Resistance

1967 ◽  
Vol 40 (3) ◽  
pp. 684-693 ◽  
Author(s):  
Barbara E. Sabey
Keyword(s):  
Large Scale ◽  
High Pressures ◽  
Water Film ◽  
Surface Characteristics ◽  
Road Surface ◽  
Dominant Factor ◽  
Fine Scale ◽  
The Road ◽  
Drainage Channels ◽  
On The Road

Abstract When roads are wet their skidding resistance is reduced by the lubricating action of the film of water on the road. Under some circumstances this reduction may be substantial and the extent of it is largely dependent on the characteristics of the road surface. The first requirement for a good skidding resistance on wet roads is to facilitate break through of the water film in order to establish areas of dry contact between the road and the tire. Drainage channels, provided by the large scale texture of the road or by a pattern on the tire, assist in getting rid of the main bulk of water and are of increasing importance the higher the speed. The penetration of the remaining water film can be achieved only if there are sufficient fine scale sharp edges in the road on which high pressures (about 1000 lb/in2) are built up. The existence of such fine scale sharpness gives the surfaces a harsh feel. When vehicles are travelling at speeds of about 30 mph the fine scale texture of the road is the dominant factor determining skidding resistance. However, as they travel faster, it becomes increasingly difficult to penetrate the water film in the time available, however harsh the surface. At high speeds the requirements for a good skidding resistance are therefore different. The resistance to skidding arises to a larger extent from energy losses in the rubber of the tire as the surface of the tread is deformed by projections in the road surface and, although the physical properties of the tread rubber are important in this respect, it is essential to have sufficiently large and angular projections in the road surface to deform the tread, even though a water film may still be present on the surface. At higher speeds the coarseness of texture becomes as important as its harshness.

Inward FDI in the Western Balkans in the wake of Croatia’s EU accession

2013 ◽  
pp. 241-263 ◽  
Author(s):  
Kálmán Kalotay
Keyword(s):  
Large Scale ◽  
The European Union ◽  
Western Balkans ◽  
Eu Accession ◽  
The Road ◽  
Speed Up ◽  
Locational Decisions ◽  
Countries In Transition ◽  
On The Road ◽  
Business Entities

The Western Balkans is a politically fragmented subregion, possessing moderate levels natural resources, and lagging behind the rest of Europe in terms of income. Integration into the European Union offers the only feasible perspective to overcome deep-rooted divisions, and to speed up progress on the road to prosperity. It can also act as a catalyst for more foreign direct investment inflows. However no large increase can be expected given the modest business opportunities of the subregion, and the fact that business entities have a gradualist approach to changes: certain measures are already factored into their locational decisions, while other will be acknowledged only on the longer term. Moreover, the Western Balkans needs to develop a strategy of attracting niche projects as it can not expect to divert investment on a large scale from countries in transition that are already members of the Union.

scholarly journals Brainy Road Accident Mitigation System

2021 ◽  
Vol 9 (VIII) ◽  
pp. 249-251
Author(s):  
Dr. B. M. Vidyavathi
Keyword(s):  
Road Safety ◽  
Large Scale ◽  
Road Transport ◽  
Road Accident ◽  
Road Accidents ◽  
Road Crashes ◽  
The Road ◽  
Road Crash ◽  
On The Road ◽  
The City

Many precious lives are lost due to road accidents because of over speeding and negligent driving every day. This is the matter of great concern for departments that deal with road safety and for the citizens. It is estimated that 80% of crashes and 65% of near collisions are due to driver’s lack of attention to traffic for three seconds before the event. The number of road crash deaths has increased by 31% from 2007 to 2017. As per the survey on the road accidents in India, according to the Ministry of Road Transport and Highways, 1, 50,785 people were killed and another 4, 94,624 were injured in 4, 80,652 road crashes in India in 2016. Now day’s accidents are taking place at large scale. Majority of the accidents occurs due to the over speeding of vehicles, though there are speed limiting boards placed at the roadside of highways also at the road side in the city. But none of vehicles (drivers) follows the speed mentioned in the speed limit boards, due to which accidents occurs.

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