European Workshop on Photonics in the Automobile最新文献

Triangulation-based laser range finder with CMOS image sensor in automotive field 基于CMOS图像传感器的三角测距激光测距仪在汽车领域的应用

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.593719

Jih-Huah Wu, R. Chang, Sheng-Pin Su

引用次数: 1

A global simulation approach to optics, lighting, rendering, and human perception for the improvement of safety in automobiles 光学、照明、渲染和人类感知的全局模拟方法，以提高汽车的安全性

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.593088

J. Delacour, L. Fournier, J. Menu

{"title":"A global simulation approach to optics, lighting, rendering, and human perception for the improvement of safety in automobiles","authors":"J. Delacour, L. Fournier, J. Menu","doi":"10.1117/12.593088","DOIUrl":"https://doi.org/10.1117/12.593088","url":null,"abstract":"In order to provide optimum comfort and safety conditions, information must be seen as clearly as possible by the driver and in all lighting conditions, by day and by night. Therefore, it is becoming fundamental to anticipate in order to predict what the driver will see in a vehicle, in various configurations of scene and observation conditions, so as to optimize the lighting, the ergonomics of the interfaces and the choice of surrounding materials which can be a source of reflection. This information and choices which will depend on it, make it necessary to call upon simulation techniques capable of modeling, globally and simultaneously, the entire light phenomena: surrounding lighting, display technologies, the inside lighting, taking into consideration the multiple reflections caused by the reflection of this light inside the vehicle. This has been the object of an important development, which results in the solution SPEOS Visual Ergonomics, led by company OPTIS. A unique human vision model was developed in collaboration with worldwide specialists in visual perception to transform spectral luminance information into perceived visual information. This model, based on physiological aspects, takes into account the response of the eye to light levels, to color, to contrast, and to ambient lighting, as well as to rapid changes in surrounding luminosity, in accordance with the response of the retina. This unique tool, and information now accessible, enable ergonomists and designers of on board systems to improve the conditions of global visibility, and in so doing the global perception of the environment that the driver will have.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126632511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Compact illumination and camera systems for 2D and 3D sensing in automobile applications 用于汽车应用的2D和3D传感的紧凑型照明和摄像系统

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.605445

A. Brauer, U. Streppel, J. Duparré, P. Schreiber, P. Dannberg

{"title":"Compact illumination and camera systems for 2D and 3D sensing in automobile applications","authors":"A. Brauer, U. Streppel, J. Duparré, P. Schreiber, P. Dannberg","doi":"10.1117/12.605445","DOIUrl":"https://doi.org/10.1117/12.605445","url":null,"abstract":"The use of optical sensor principles in automotive applications is growing fast due to the increasing demand for driver assistance and passenger security systems. Automotive applications demand for compact, low volume or particularly flat microoptical systems for recognition of passengers and obstacles, measuring distances, eye movements etc. The optical concepts need to reach a high level of optical- and opto-electronic integration and demand a high degree of modularity to be able to address different requirements in a flexible way. In this context, the design and realization of several compact optical modules for the sensor as well as for the illumination side are presented, e.g. a wide angle camera optics (FOV = 90° and f-number = 1.1), laser and LED-based illumination modules and an ultra thin camera of 0,2 mm length, based on the apposition eye principle. The specification of these microoptical modules is oriented to fulfil physical as well as economical requirements. In particular, a great compactness and easy scalable fabrication technologies are essential to fulfil the different boundary constraints.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128237110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Replicated micro-optics for automotive applications 用于汽车应用的复制微光学

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.610121

Benno Stager, M. T. Gale, M. Rossi

{"title":"Replicated micro-optics for automotive applications","authors":"Benno Stager, M. T. Gale, M. Rossi","doi":"10.1117/12.610121","DOIUrl":"https://doi.org/10.1117/12.610121","url":null,"abstract":"Replicated micro-optics is playing an increasingly important role in illumination and sensing systems in automobiles. The introduction of new design methods and improvements in materials and production technology has led to components which can offer superior performance, size and weight compared with classical optical elements. Diffractive Optical Elements (DOEs) for applications such as beam shaping can achieve optical performance which is not possible with conventional optics. Beam forming elements for use with red and white LEDs play a major role in automotive optics. Customised DOEs can offer significantly more design flexibility and functionality over Fresnel lenses for the complex optical system based on a single or multiple LED source with reflector and wavelength converting resin. Thinner modules and improved efficiency are achieved. With CMOS imager sensors, micro-optical lenslet arrays can improve the effective sensitivity by many factors. UV-embossing and injection moulding are used to produce components in high volumes at low production costs. Replicated mounting and alignment features reduce assembly costs. New materials and processes have been developed to enable wafer-scale production by UV-embossing, producing glass-like components with excellent humidity and elevated temperature stability as well as IR-reflow process compatibility.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116501688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Strength and reliability of silica optical fibers for automotive communication networks 汽车通信网络用二氧化硅光纤的强度和可靠性

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.596915

Eric A. Lindholm, E. Warych, Daniel Whelan

引用次数: 3

Far-infrared cameras for automotive safety 用于汽车安全的远红外摄像机

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.597092

J. Lonnoy, Y. Le Guilloux, R. Moreira

{"title":"Far-infrared cameras for automotive safety","authors":"J. Lonnoy, Y. Le Guilloux, R. Moreira","doi":"10.1117/12.597092","DOIUrl":"https://doi.org/10.1117/12.597092","url":null,"abstract":"Far Infrared cameras used initially for the driving of military vehicles are slowly coming into the area of commercial (luxury) cars while providing with the FIR imagery a useful assistance for driving at night or in adverse conditions (fog, smoke, ...). However this imagery needs a minimum driver effort as the image understanding is not so natural as the visible or near IR one. A developing field of FIR cameras is ADAS (Advanced Driver Assistance Systems) where FIR processed imagery fused with other sensors data (radar, ...) is providing a driver warning when dangerous situations are occurring. The communication will concentrate on FIR processed imagery for object or obstacles detection on the road or near the road. FIR imagery highlighting hot spots is a powerful detection tool as it provides a good contrast on some of the most common elements of the road scenery (engines, wheels, gas exhaust pipes, pedestrians, 2 wheelers, animals,...). Moreover FIR algorithms are much more robust than visible ones as there is less variability in image contrast with time (day/night, shadows, ...). We based our detection algorithm on one side on the peculiar aspect of vehicles, pedestrians in FIR images and on the other side on the analysis of motion along time, that allows anticipation of future motion. We will show results obtained with FIR processed imagery within the PAROTO project, supported by the French Ministry of Research, that ended in spring 04.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116199892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Lane detection algorithm for an onboard camera 车载摄像头的车道检测算法

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.596866

M. Bellino, Yuri Lopez de Meneses, P. Ryser, J. Jacot

{"title":"Lane detection algorithm for an onboard camera","authors":"M. Bellino, Yuri Lopez de Meneses, P. Ryser, J. Jacot","doi":"10.1117/12.596866","DOIUrl":"https://doi.org/10.1117/12.596866","url":null,"abstract":"After analysing the major causes of injuries and death on roads, it is understandable that one of the main goals in the automotive industry is to increase vehicle safety. The European project SPARC (Secure Propulsion using Advanced Redundant Control) is developing the next generation of trucks that will fulfil these aims. The main technologies that will be used in the SPARC project to achieve the desiderated level of safety will be presented. In order to avoid accidents in critical situations, it is necessary to have a representation of the environment of the vehicle. Thus, several solutions using different sensors will be described and analysed. Particularly, a division of this project aims to integrate cameras in automotive vehicles to increase security and prevent driver's mistakes. Indeed, with this vision platform it would be possible to extract the position of the lane with respect to the vehicle, and thus, help the driver to follow the optimal trajectory. A definition of lane is proposed, and a lane detection algorithm is presented. In order to improve the detection, several criteria are explained and detailed. Regrettably, such an embedded camera is subject to the vibration of the truck, and the resulting sequence of images is difficult to analyse. Thus, we present different solutions to stabilize the images and particularly a new approach developed by the \"Laboratoire de Production Microtechnique\". Indeed, it was demonstrated in previous works that the presence of noise can be used, through a phenomenon called Stochastic Resonance. Thus, instead of decreasing the influence of noise in industrial applications, which has non negligible costs, it is perhaps interesting to use this phenomenon to reveal some useful information, such as for example the contour of the objects and lanes.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123494753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

Intelligent rear lighting: a breakthrough for safety and comfort 智能尾灯:安全舒适的突破

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.596888

T. Luce

{"title":"Intelligent rear lighting: a breakthrough for safety and comfort","authors":"T. Luce","doi":"10.1117/12.596888","DOIUrl":"https://doi.org/10.1117/12.596888","url":null,"abstract":"Since the invention of automobiles, rear lamps suffered from poor visibility in bad weather or due to lamp soiling. With the advent of advanced sensor systems and powerful microcontrollers, it is possible to adjust the light output of signalling applications to the visibility conditions. Latest LED technology allows to control the light output of signal lamps between almost zero cd and several hundred cd. Schefenacker has developed a system to improve the visibility of signal lamps by adaptation of the lighting levels to the environmental conditions. A detector system, consisting of a Lidar sensor and a combined brightness/dirt sensor detects the environmental conditions. A microcontroller transfers these data into necessary brightness levels for the intelligent rear lamp. The intensity of the signalling function is adapted accordingly, to guarantee a consistent perception even under bad weather conditions. This will affect positively the road safety, especially under strongly varying brightness conditions and in foggy weather. The system offers also the opportunity to get an automatically working fog lamp. Finally, the legal situation is highlighted. Since the implementation requires continuously varying intensity levels, the respective ECE regulations have to be adopted. Extensive work has been done since the first ideas for an adaptive tail lamp, and it is expected that the regulations will be adapted soon.","PeriodicalId":362599,"journal":{"name":"European Workshop on Photonics in the Automobile","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132685051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Technology and design 技术与设计

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.583168

H. Wambsganss

引用次数: 12

Red VCSEL for automotive applications 用于汽车应用的红色VCSEL

European Workshop on Photonics in the Automobile Pub Date : 2005-02-16 DOI: 10.1117/12.597025

R. Rossbach, Tabitha Ballmann, R. Butendeich, F. Scholz, H. Schweizer, M. Jetter

引用次数: 4