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Issue 5 ， 1994
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Three-Dimensional TV Measurement for Robot Vision System
Abstract：In this paper,the study of 3-d TV measurement for robot vision system is presented.Discussion of the error of the 3-d TV measurement is the focal point of this paper.Keywords：Television Measurement;Distance measurement;robot vision- 49
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Published：2020-08-12 -
The CCD,ICCD and IRCCD as Imager
Abstract：The recent developments of CCD、ICCD and IRCCD as an imager are reviewed.The potential applications of the very low noise、low-light level and infrar-rad are pointed.Keywords：Image Sensor;CCD;ICCD;IRCCD- 38
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Published：2020-08-12 -
An Adaptive Method for Image Binarization in Real-Time
Abstract：An adaptive method for image binarization in real-time composed of asingle chip micro-computer and SRAMs, which are used for histogram accumulator and calculated the thresh-olding value according to the pinciple of“moment-preserving threshold”,is described.Thisinethod performs adaptive image binarization in real-time with the characteristics of fast,good result,simple and low coat,It is suitable for real-time image processing.Keywords：SRAM;Image binarization;Moment-preserving threshold;Histogram accu-mulator- 46
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Published：2020-08-12 -
An Automatic Method Recognizing the Front End of Moving Object
Abstract：An automatic method recognizing the front and of a moving object at a speed of videofrequency is described in this paper.After analyzing the motion parameters of the object andcorrecting the quantity of missing target of the object, the precise moving direction of the object is obtained.Then using a oriented vector and object’s address in memory the location ofthe front end of the ouet along the moving direction is searched for a system of automaticrecognizing object composed of a TMS320C25 as a CPU has used to realize this method.Thehardware structune and software flow chart is also given in this paper.Keywords：Motion parameters;Oriented vector;Real-time image processing;Automaticrecognizing object- 37
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Published：2020-08-12 -
Some Links Affecting the Working Distance of a Tracking and Measl1ring Television System
Abstract：Some facters to effect the working distance of a tracking and measuring television system,such as,objects background,atmosphere,and detectors is studied.The aim is to findapractical calculating method.Keywords：Television-working distance;Photometric characteristics;Detectors- 45
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Published：2020-08-12 -
Several Problems in Applications of Optical Measurement Equipments with Faint Light TV Camera
Abstract：A more detailed discuscion of two problems about the narrow dynamic range and seriousnoise of a faint light TV camera is presented in this paper. To ensure the faint light TV camera working perfectly at day and night,multiple links have to be used together,which includeoptical adjustment, automatic control of the high voltage of the intensifier of the faint lightTV camera, and automatic gain contrtol.A median filter is very effective for removing thespiced salt noise of a picture froma faint light TV camera. On certain conditions,some methods are also effective for real-time processing,such as signal delay and superimposition,background light trimming and gain reduction and so on.Keywords：Faint light TV;Dynamic range;Spiced salt noise;Tracking and measuring teleuision- 48
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Published：2020-08-12 -
Design and Implement of Shape Center Processor Used in a TV Tracker
Abstract：This article mainly describes the working principle,design and implement of shape center prossor used in a TV tracker. Using a binary image,a high speed TMS320 series digitalsignal processor and a shape center algorithms,the object’s position and dimention is computed in real-time. Meantime the dimention and position of a tracking window,the deviation ofthe odject measured in horizontal and vertical direction are outputed.Keywords：TV tracker;Shape center processor;Digital signal processor- 40
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Published：2020-08-12 -
An Algorithn of TV Tracking for Cross-Moving Multiple Objects
Abstract：An algorithm for automatically tracking moving multiple objects that cross in the field of view of a tracking and measuring television system is presented in this paper.This algorithmincludes tracking tactics,a judgement on the overlapped and separated moment of these objects,and the affiration of the correspondence relationship between these object’s images.The least square method is used for calculating the direction of each object’s movement.Keywords：ross-moving;Multiple Objects;TV Tracking;Least square- 37
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Published：2020-08-12 -
Statistics of Feature Data for Numbering Multiple Objects Using Edge Information of an Image
Abstract：A method to make a statistics of the edge information of an image is presented in thispaper.This method has realized a smart design of using double-port RAMs and a high speeddigital signal processor to achieve a statistics of feature data,such as the center of gravity,size and aspect ratio,for numbering as many as 1024 objects.Keywords：Edge information;Multiple objects numbering;Real-time multi-object measurement- 36
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Published：2020-08-12 -
Communication,Control and Display of TV System fov Theodolite
Abstract：A subsystem of a tracking and measuring television system,which performs the functionof communication,panel control, and screen display is reported. This subsystem includes akey board,a mouse,a timing unit,internal and external communication ports and screendesplay. Using a Intel 8098 single chip microcomputer,all of the numbers,Chinese charactors,English letters,patterns and image are displaied on the same screen of a monitor.It iseffective to reduce the cost and convenient for users.Keywords：I/O port;External installation;Display on the same screen;Communication- 32
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Published：2020-08-12 -
A Sychronizer of Tracking and Measuring Television System
Abstract：The signals output from a sychronizer of a tracking and measuring television system include horizontal and vertical synchronized pulses,effective field of view, electronic cross co-ordinate axis,tracking window and cursor.Three methods for generating above signals is presented in this paper.They are single chip microcomputer method,look up table methodand Generic Array Logic method.The hardware circuits and software lists are also given withcomments on these methods.Keywords：Tracking and measuring television;Synchronized signal;Look up tablemethod;Generic Array logic- 24
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Published：2020-08-12 -
Real-Time Output Unit of Tracking and Measuring Television System
Abstract：The real-time output unit(RTOU) of a tracking and measuring television(TMTV)system is described in this paper,with the emphasis on the following problems:Synchronizingand phase-locking between the time base of the TMTV system and a sample pulses from acommand system:correcting the delay of the output data from the RTUO;and Compensatingthe dynamic error caused by the movement of a measured object.Keywords：Tracking and measureing television;Quantity of missimg a target;Dynamicerror measuring;Real-time output;Delay- 40
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Published：2020-08-12 -
Video Signal Digitalization and Storing
Abstract：A discussion of the prohems about digitizingr video signal and processing the digitized signal in real-time storing by the method of gated storing and reserving preappointed data ispresented in this paper.Keywords：Viedo signad;digtizing;Gated storing;Reserving preappolinted data- 42
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Published：2020-08-12 -
An Automatical Light Control System of a TV Tracker
Abstract：An applied automatical light control system of a TV tracker including its worhng principle and structure is presented in this paper.The light quantity is contoled by a mixed signalcomposed of the peak value and the background level of a video slgnal.Asingle chip computer is used to control a stepping motor driving a variable-density plate.Keywords：Automatical light control system;TV tracker;Light quantity;Variable density plate- 55
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Published：2020-08-12 -
Video Image Segmentation Using a Modified Histogram
Abstract：A method for video image segmentation using a modified histogram is presented in thispaper.It can be used in real-time image processing.Keywords：Histograms;Real-time image processing;Video image segmentation- 56
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Published：2020-08-12 -
Image Coding Compression System of Synthetic Aperture Radar
Abstract：This paper discusses the principles of quasi-real time coding compression of SAR images and the realizing method in the project.According to the information theory and featu res of SAR images, three design methods of coding compression are given. The best one has beenchosen,which uses a digital signal processor,hardwares and softwares,The practice showsthat a 2048?2048 SAR image can be coded and compressed within 80 second by thismethod,the compressing ratio is greater than 10,SNR is greater than 35 db meeting the requirements of the project.Keywords：Data compression;Predictiue coding;Images transmission;Coding compression- 46
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Published：2020-08-12
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