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Advanced Imaging and Network Technologies最新文献

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Color-sensitive photodetectors in standard CMOS and BiCMOS technologies 标准CMOS和BiCMOS技术的色敏光电探测器
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262515
Mohamed Ben Chouikha, G. Lu, M. Sedjil, G. Sou
{"title":"Color-sensitive photodetectors in standard CMOS and BiCMOS technologies","authors":"Mohamed Ben Chouikha, G. Lu, M. Sedjil, G. Sou","doi":"10.1117/12.262515","DOIUrl":"https://doi.org/10.1117/12.262515","url":null,"abstract":"The authors present a novel technique for color detection by using a buried double pn junction (B.D.J.) and a buried triple pn junction (B.T.J.) structure. For the B.D.J. wavelength-dependent photocurrents I1 and I2 can be measured. The wavelength of monochromatic incident light can be identified from the ratio I2/I1. In the case of the B.T.J. with wavelength dependent photocurrents the three colorimetric components of the incident light can be extracted. These structures can be implemented in standard CMOS and BiCMOS technology respectively.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130232577","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: 8
Random addressable active pixel image sensors 随机可寻址的主动像素图像传感器
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262512
B. Dierickx, D. Scheffer, G. Meynants, W. Ogiers, J. Vlummens
{"title":"Random addressable active pixel image sensors","authors":"B. Dierickx, D. Scheffer, G. Meynants, W. Ogiers, J. Vlummens","doi":"10.1117/12.262512","DOIUrl":"https://doi.org/10.1117/12.262512","url":null,"abstract":"In this article we discuss the trade-offs for the design, fabrication and interfacing of fast pixel addressable (random-access) cameras. In order to benefit most from the random addressability, the interface must be optimized for access through a data bus/address bus structure. Measures to correct the camera's inherent non-uniformity must not slow down the interface speed.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129348407","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: 68
Design improvement of electro-optical imaging system using image quality criteria 基于图像质量标准的光电成像系统设计改进
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262536
Jean-Luc Olives, B. Lamiscarre, M. Gazalet
{"title":"Design improvement of electro-optical imaging system using image quality criteria","authors":"Jean-Luc Olives, B. Lamiscarre, M. Gazalet","doi":"10.1117/12.262536","DOIUrl":"https://doi.org/10.1117/12.262536","url":null,"abstract":"We propose a new method to improve the design of electro- optical imaging system using an end-to-end model of the imaging system and a combination of image quality criteria. Firstly, we used an imaging system simulator to produce an output image, which is the distorted version of the input scene. Secondly, we calculate an objective quotation for the quality of the imaging system for each parameter set, and compare the results with the human evaluation of image quality. It allows us to calibrate our imaging system quality measure (ISQM). Finally, the ISQM is used as a tool to improve system design without any human observer evaluation.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122118783","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: 3
Real-time, miniaturized optical sensor for motion estimation and time-to-crash detection 用于运动估计和碰撞时间检测的实时、小型化光学传感器
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262544
N. Ancona, G. Creanza, D. Fiore, R. Tangorra, B. Dierickx, G. Meynants, D. Scheffer
{"title":"Real-time, miniaturized optical sensor for motion estimation and time-to-crash detection","authors":"N. Ancona, G. Creanza, D. Fiore, R. Tangorra, B. Dierickx, G. Meynants, D. Scheffer","doi":"10.1117/12.262544","DOIUrl":"https://doi.org/10.1117/12.262544","url":null,"abstract":"The paper presents a low cost, miniature sensor that is able to compute in real time (up to 1000 frames/sec) motion parameters like the degree of translation, expansion or rotation that is present in the observed scene, as well as the so-called time-to-crash (TTC), that is the time required for a moving object to collide with the sensor. The sensing principle is that of computing and analyzing the optical flow projected by the scene on the sensor focal plane, through a novel algorithmic technique, based on sparse sampling of the image and one-dimensional correlation. The hardware implementation of the algorithm is based on two custom VLSI chips: one is a CMOS image sensor, having nonstandard pixel geometry, while the other one is a digital correlator that computes at high speed the optical flow vectors. The high-level control and communication tasks are managed by a microcontroller, thus guaranteeing a high level of flexibility and adaptability of the sensor properties towards different application requirements and/or variable external conditions.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125625388","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: 13
Two-dimensional motion detector based on insect vision 基于昆虫视觉的二维运动检测器
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262519
A. Moini, A. Bouzerdoum, A. Yakovleff, K. Eshraghian
{"title":"Two-dimensional motion detector based on insect vision","authors":"A. Moini, A. Bouzerdoum, A. Yakovleff, K. Eshraghian","doi":"10.1117/12.262519","DOIUrl":"https://doi.org/10.1117/12.262519","url":null,"abstract":"Implementing motion detection algorithms using analog VLSI techniques has proven to be a challenging task due to several obstacles, including the limitations of analog VLSI, the algorithmic limitations brought forward by complex motion detection schemes, and the effect of various types of noise. Insect vision has been an inspiring model for motion detectors, as insects heavily rely on motion detection for navigation, and the natural complexity of their neuro-visual circuitry is also less than that of vertebrates. In an effort to implement the so called template model of insect vision, a comparative study of various analog differentiators was undertaken by implementing different candidates on a test chip. Based on the results, a 64 by 4 motion detector has been designed and fabricated. The chip is designed in a 0.8 micrometer 3M-1P CMOS process, and the 2-D array occupies an area of 1.5 multiplied by 3.1 mm2. Each cell comprises a bipolar-mode photodetector, an adaptive amplifier, the improved analog differentiator, and thresholding circuits.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122892978","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
Analog retina-based stereo-vision system for car navigation 基于模拟视网膜的汽车导航立体视觉系统
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262531
Y. Ni, B. Arion, F. Devos
{"title":"Analog retina-based stereo-vision system for car navigation","authors":"Y. Ni, B. Arion, F. Devos","doi":"10.1117/12.262531","DOIUrl":"https://doi.org/10.1117/12.262531","url":null,"abstract":"In this paper, an analog retina based stereo vision system for car navigation is presented. This stereo vision system uses two charge-mode spatio-frequential visual feature extraction retina to obtain matching primitives and a digital processor to do stereo matching and disparity computation. By using the quarter-cycle rule, all the computations are local, either implemented in parallel on feature extraction retina or on digital processor. A prototype system has shown a potential performance of 400 images per second at 256 by 256 resolution.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130705683","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
Closely integrated digital image capture device for embedded applications 紧密集成的数字图像捕获设备，用于嵌入式应用
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262525
D. Jordan, D. Holburn
{"title":"Closely integrated digital image capture device for embedded applications","authors":"D. Jordan, D. Holburn","doi":"10.1117/12.262525","DOIUrl":"https://doi.org/10.1117/12.262525","url":null,"abstract":"A modular image capture system with close integration to CCD cameras has been developed. The aim is to produce a system capable of integrating CCD sensor, image capture and image processing into a single compact unit. This close integration provides a direct mapping between CCD pixels and digital image pixels. The system has been interfaced to a digital signal processor board for the development and control of image processing tasks. These have included characterization and enhancement of noisy images from an intensified camera and measurement to subpixel resolutions. A highly compact form of the image capture system is in an advanced stage of development. This consists of a single FPGA device and a single VRAM providing a two chip image capturing system capable of being integrated into a CCD camera. A miniature compact PC has been developed using a novel modular interconnection technique, providing a processing unit in a three dimensional format highly suited to integration into a CCD camera unit. Work is under way to interface the compact capture system to the PC using this interconnection technique, combining CCD sensor, image capture and image processing into a single compact unit.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123177398","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
Digital monochrome CCD camera for robust pixel correspondant, data compression, and preprocessing in an integrated PC-based image-processing environment 数字单色CCD相机的鲁棒像素对应，数据压缩和预处理在一个集成的基于pc的图像处理环境
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262521
N. M. Arshad, D. Harvey, C. Hobson
{"title":"Digital monochrome CCD camera for robust pixel correspondant, data compression, and preprocessing in an integrated PC-based image-processing environment","authors":"N. M. Arshad, D. Harvey, C. Hobson","doi":"10.1117/12.262521","DOIUrl":"https://doi.org/10.1117/12.262521","url":null,"abstract":"This paper describes the development of a compact digital CCD camera which contains image digitization and processing which interfaces to a personal computer (PC) via a standard enhanced parallel port. Digitizing of precise pixel samples coupled with the provision of putting a single chip FPGA for data processing, became the main digital components of the camera prior to sending the data to the PC. A form of compression scheme is applied so that the digital images may be transferred within the existing parallel port bandwidth. The data is decompressed in the PC environment for a real- time display of the video images using purely native processor resources. Frame capture is built into the camera so that a full uncompressed digital image could be sent for special processing.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536221","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
Measurement technique for the characterization of electronic still picture cameras 电子静止图像相机特性的测量技术
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262526
M. Schulz
{"title":"Measurement technique for the characterization of electronic still picture cameras","authors":"M. Schulz","doi":"10.1117/12.262526","DOIUrl":"https://doi.org/10.1117/12.262526","url":null,"abstract":"Electronic still picture camera systems, mostly using CCD sensors, are ever more widely used both in the photographic world and in professional measuring technique. It is therefore necessary to develop adequate measuring facilities for the characterization and quality control of high-end measuring or imaging systems. In this presentation, a versatile measuring set-up for electronic still picture cameras is described. Several standards are being developed for the characterization of electronic still picture cameras that, among other things, define the methods for measuring the spatial frequency response (SFR) using a test chart and the modulation transfer function (MTF). Exemplary results are shown for the measurement of SFR and MTF of black-and- white and color CCD still cameras and the two properties are compared to one another.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125323518","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
Smart camera system 智能摄像系统
Advanced Imaging and Network Technologies Pub Date : 1996-12-19 DOI: 10.1117/12.262524
R. Mudra, M. Thaler, G. Troester
{"title":"Smart camera system","authors":"R. Mudra, M. Thaler, G. Troester","doi":"10.1117/12.262524","DOIUrl":"https://doi.org/10.1117/12.262524","url":null,"abstract":"The smart camera is an intelligent compact camera system based on concepts which are taken from the human visual and nervous systems. Images are taken by a smart sensor which performs first low level image processing steps. Preprocessed images are then handed over to a digital signal processor (DSP). The DSP is responsible of high level image processing. It further reduces the image data down to essential information. Based on this data, the camera can be programmed to take decisions autonomously, e.g. halt an assembly line or remove an object from the line. Because of its visual capabilities and the built-in intelligence, the camera is independent of supervising systems, although it might update or alarm the supervising system if necessary.","PeriodicalId":127521,"journal":{"name":"Advanced Imaging and Network Technologies","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122659760","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
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