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Research on Correction Algorithm of Head-up Display System in Vehicle Vibration

Wuhan University of Technology-Jianjie Kuang, Xuexun Guo, Gangfeng Tan, ZhiQiang Liu, Zhongpeng Tian, Meng Sun
  • Technical Paper
  • 2020-01-1368
To be published on 2020-04-14 by SAE International in United States
The head-up display system can overlay the real object with the projected image to assist the driver in driving. However, when road conditions are bad, the continuous vibration of the vehicle will cause the vehicle to tilt and shift. At this time, the projected image and the real object do not overlap well. This paper presents a correction algorithm for a head-up display system. The algorithm corrects the position of the projected image by inputting the tilt state of the vehicle. In this paper, the coordinate axis with the driver's eye as the origin is first established. Then the tilt state of the vehicle is decomposed into the rotation angle in three directions and the displacement in the vertical direction. Finally, the position of the projected image is corrected by inputting the tilt state of the vehicle so that the projected image can remain on the real object at all times. The simulation model is established in Unity3D. The effectiveness of the correction algorithm is verified by inputting the tilt state of the vehicle. The…
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Lookie Here! Designing Directional User Indicators Across Displays in Conditional Autonomous Vehicles

Georgia Institute of Technology-Wei Wang, Hongnan Lin
Harman Connected Services-Pranav Nair
  • Technical Paper
  • 2020-01-1201
To be published on 2020-04-14 by SAE International in United States
Based on the SAE’s classification (J3016), drivers’ attention will be gradually released from the driving task as the level of automation in the vehicle increases. It allows drivers to complete more non-driving related tasks in information and entertainment system. The trigger point for the major transition in driver control happens in the progression from level 2 to level 3 when the automated driving system (ADS) starts to perform a major part of the dynamic driving task (DDT) in the allowed conditions, but meanwhile it still needs the drivers are ready for takeover control or other interventions in a short time. In this paper, we investigated whether providing directional alerts to a user’s active screen with non-driving related tasks can augment their ability in regaining situational awareness on road hazard when traveling in a conditional autonomous vehicle. A user study (N=15) was conducted to compare solutions between the central and peripheral field across displays where subjects were seated in an autonomous vehicle simulator and distracted by playing a game on a tablet screen (iPad). With different…
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Analysis of Dashcam Video for Determination of Vehicle Speed

Trinity University-Jack Leifer, Alvaro Marquez
  • Technical Paper
  • 2020-01-0877
To be published on 2020-04-14 by SAE International in United States
Using dashcam video footage to extract reliable vehicle speed data can be challenging when the only available image stream comes from a camera whose optical parameters are unknown. One means of overcoming such difficulties uses visible landmarks and features within the video frame whose dimensions can be independently measured. While good results have been obtained by others using a Total Station or LiDAR to physically measure locations for such purposes, this approach could prove difficult if a site of interest is inaccessible (e.g. on a busy highway that cannot be shut down) or if relevent features of the target location have changed (e.g. due to construction or even restriping of lanes lines). As an alternative to direct scene measurement, it is proposed that measurement of features visible in overhead satellite images be used to dimension relevant features visible in the video. In this work, videos from individual dashcams and phone-based cameras were used to calculate average vehicle speed by tracking individual features as they pass through and then exit the image frame. Because the features…
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Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays

A-4 Aircraft Instruments Committee
  • Aerospace Standard
  • AIR1093B
  • Current
Published 2020-04-01 by SAE International in United States

The purpose of this AIR is to provide recommendations for the minimum dimensions of characters and symbols used in aircraft instrument dials and panel displays as related to the conditions stated in para. 3.

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2021 Cadillac Escalade brings a dash of curved OLED - and a diesel

Automotive Engineering: March 2020

Paul Seredynski
  • Magazine Article
  • 20AUTP03_13
Published 2020-03-01 by SAE International in United States

Cadillac has unveiled the 2021 Escalade and will differentiate the full-size SUV from its Tahoe/Yukon platform-mates with a large dose of exclusive technologies including Super Cruise, audio systems from new partner AKG and the industry's slickest display-screen integration. Gaining similar mechanical benefits as its platform siblings, including wheelbase stretches and the new independent rear suspension (IRS) that should improve dynamics along with seating/cargo space, the all-new 2021 Escalade leverages the platform's new digital network architecture (see p.10) to raise the bar for integrated infotainment technology.

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Researchers Develop Ultra-Thin, Ultra-Flexible Electronic Material

  • Magazine Article
  • TBMG-36275
Published 2020-03-01 by Tech Briefs Media Group in United States

Researchers have developed an ultra-thin, ultra-flexible electronic material that could be printed and rolled out like newspaper. The material could be used for the touch-screens of the future. The touch-responsive technology is 100 times thinner than existing touchscreen materials and so pliable it can be rolled up like a tube.

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Bosch unveils electronic sun visor

Automotive Engineering: January/February 2020

Kami Buchholz
  • Magazine Article
  • 20AUTP02_12
Published 2020-01-01 by SAE International in United States

Bosch engineers have re-imagined the sun visor as a transparent liquid crystal display (LCD) panel that uses algorithms to darken only the area where sunlight hits the driver's eyes. The rest of the visor panel remains see-through for visibility.

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Tier 1s tout newest mobility tech at CES 2020

Automotive Engineering: January/February 2020

Lindsay Brooke
  • Magazine Article
  • 20AUTP02_09
Published 2020-01-01 by SAE International in United States

The mammoth annual techfest formerly known as the Consumer Electronics Show has become a must-attend for the mobility industry, with dozens of displays by OEMs and suppliers of all dimensions. At this year's CES, Automotive Engineering was impressed by new developments in ADAS and AV sensing and processing, V2X connectivity, vehicle cabin sensing and related technologies, electrification advances and a number of vehicle introductions. Highlights of our reporting include:

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How Augmented Reality Can Modernize Aerospace And Defense Manufacturing

  • Magazine Article
  • TBMG-35685
Published 2019-12-01 by Tech Briefs Media Group in United States

You've probably heard about augmented reality (AR) in the context of consumer entertainment: video gaming, virtual tours, or interactive displays. But AR for enterprise business is here. It's no longer an emerging technology, or a novelty; businesses are using AR to overhaul processes, drive efficiencies, reduce manufacturing errors, and improve their bottom line.

Camera Enables Surgeons to More Easily Identify Cancerous Tissue

  • Magazine Article
  • TBMG-35429
Published 2019-11-01 by Tech Briefs Media Group in United States

Many surgeons rely on sight and touch to find cancerous tissue during surgery. Large hospitals or cancer treatment centers may also use experimental near-infrared fluorescent agents that bind to tumors so surgeons can see them on specialized displays. These machines are costly, making them difficult for smaller hospitals to procure. They also are very large, making them difficult to fit into an operating suite and integrate smoothly into surgery, and they require the lights to be dimmed so the instruments can pick up the weak fluorescent signal, making it difficult for the surgeons to see.