28-03-2011, 02:56 PM
sir plz send us d complete report n ppt of speed detection of moving vehicle using speed camers...
28-03-2011, 02:56 PM
sir plz send us d complete report n ppt of speed detection of moving vehicle using speed camers...
21-07-2011, 11:16 PM
PLZ GIVE ME PPT FOR ABOVE MENTIONED TOPIC
AS FAST AS POSSIBLE
22-07-2011, 10:31 AM
To get more information about the topic "Speed Detection of moving vehicle using speed cameras " please refer the link below
https://seminarproject.net/Thread-speed-...ed-cameras https://seminarproject.net/Thread-speed-...ull-report https://seminarproject.net/Thread-speed-...ort?page=2
27-07-2011, 09:01 PM
i need complete pdf file for this topic
01-08-2011, 05:35 PM
I NEED AN CIRCUIT DIAGRAM OF THIS PROJECT AND THE BRIEF DESCRIPTION
02-08-2011, 10:04 AM
To get more information about the topic "Speed Detection of moving vehicle using speed cameras " please refer the link below
https://seminarproject.net/Thread-speed-...ed-cameras https://seminarproject.net/Thread-speed-...ull-report https://seminarproject.net/Thread-speed-...ort?page=2
19-01-2012, 09:51 AM
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04-04-2012, 04:06 PM
Speed Detection of moving vehicle using speed cameras
Speed dection.docx (Size: 304.69 KB / Downloads: 55) Definition Although there is good road safety performance the number of people killed and injured on our roads remain unacceptably high. So the roads safety strategy was published or introduced to support the new casualty reduction targets. The road safety strategy includes all forms of invention based on the engineering and education and enforcement and recognizes that there are many different factors that lead to traffic collisions and casualties. The main reason is speed of vehicle. We use traffic lights and other traffic manager to reduce the speed. One among them is speed cameras. How do speed cameras work? What is the technology behind speed cameras, how is the system implemented, how do radars work? Why are speed cameras where they are? Officially, the criteria are : areas where accidents frequently occur;- areas where speeding is usually one of the main causes for the accidents; areas where human police controls are difficult. How does the system work? The vehicle is speeding. As it passes by an automatic radar, speeding is detected and a digital picture of the vehicle is taken. The picture is crypted then sent to a national treatment center via internet networks (adsl connection). At the center the picture is uncrypted and the registration of the car is taken, as well as all the relevant data (time, speed, etc). The registration is compared to the database of stolen cars and rented cars. Police officers supervise this stage. The fine is then mailed to the owner of the car. A contestation is possible if the owner was not the driver. How are foreign registered vehicles concerned? A law passed 12 june 2003 makes it possible to go after the owners of vehicules whose registration is not french. This of course depends on the exchange of data and cooperation between European police forces, but we have to admit that this kind of cooperation is on the rise, especially regarding data sharing procedures. That law gives the owners of foreign registered cars one month more to pay their fines. What else could you be fined for? Automatic radars are or will be developped/improved to also control: - Security distances between vehicles (work in progress). - Respect of traffic lights (implemented). INDEX TERMS: 1. VEHICLE TRACKING 2. VEHICLE DETECTION 3. VEHICLE CLASSIFIACTION 4. CAMERA CALIBRATION STAGES INVOLVED: 2. SEGEMENTATION: The first step in detecting vehicles is segmenting the image to separate the vehicles from the background. There are various approaches to this, with varying degrees of effectiveness. REQUIREMENTS FOR SEGMENTATION: 1. It should accurately separate vehicles from the background. 2. It should be fast enough to operate in real time. 3. It should be insensitive to lighting and weather conditions. 4. It should require a minimal amount of initialization. A. SEGMENTATION For each frame of the video sequence (referred to as current image), we take the difference between the current image and the current background giving the difference image. The difference image is thresholded to give a binary object mask. The object mask is a binary image such that all pixels that correspond to foreground objects have the value 1, and all the other pixels are set to value 0. RECOVERY OF VEHICLE PARAMETERS: To be able to detect and classify vehicles, the location, length, width and velocity of the regions (which are vehicle fragments) needs to be recovered from the image. Knowledge of camera calibration parameters is necessary in estimating these attributes. Accurate calibration can therefore significantly impact the computation of vehicle velocities and classification. CONCLUSION AND FUTURE WORK We have presented a model-based vehicle tracking and classification system capable of working robustly under most circumstances. The system is general enough to be capable of detecting, tracking and classifying vehicles while requiring only minimal scene-specific knowledge. In addition to the vehicle category, the system provides location and velocity information for each vehicle as long as it is visible. Initial experimental results from highway scenes were presented. To enable classification into a larger number of categories, we intend to use a non-rigid model-based approach to classify vehicles.
17-12-2012, 02:26 PM
to get information about the topic "speed direction of moving vehicle using speed cameras" full report ppt and related topic refer the link bellow
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18-02-2013, 09:49 AM
to get information about the topic "speed detection of moving vehicle using speed cameras"full report ppt and related topic refer the link bellow
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16-05-2013, 03:12 PM
SPEED DETECTION OF MOVING VEHICLES USING SPEED CAMERAS SPEED DETECTION.doc (Size: 420.5 KB / Downloads: 28) INTRODUCTION Although there is good road safety performance the number of people killed and injured on our roads remain unacceptably high. So the roads safety strategy was published or introduced to support the new casualty reduction targets. The road safety strategy includes all forms of invention based on the engineering and education and enforcement and recognizes that there are many different factors that lead to traffic collisions and casualties. The main reason is speed of vehicle. We use traffic lights and other traffic manager to reduce the speed. One among them is speed cameras. Speed cameras on the side of urban and rural roads, usually placed to catch transgressors of the stipulated speed limit for that road. The speed cameras, the solely to identify and prosecute those drivers that pass by the them when exceed the stipulated speed limit. At first glance this seemed to be reasonable that the road users do not exceed the speed limit must be a good thing because it increases road safety, reduces accidents and protect other road users and pedestrians. So speed limits are good idea. To enforce these speed limit; laws are passed making speed an offence and signs are erected were of to indicate the maximum permissible speeds. The police can't be every where to enforce the speed limit and so enforcement cameras art director to do this work; on one who's got an ounce of Commons sense, the deliberately drive through speed camera in order fined and penalized . THE DOPPLER EFFECT The device that is the first generation RADAR is not capable of determining the speed of the detected object. This was limited to measuring the movement of echo on the screen, which gave a rather inaccurate result. As an example consider the car that makes a sound with a fixed frequency. When you are in the car, you won't notice any variation in the frequency of the engine sound. However you stand at the side of the road and listen to the car when it drives past under identical condition you will notice that the frequency of the engines sound increases as the car comes nearer and then decreases as the car travels past you. It is a matter of common experience that the pitch of the note appears to change when either source or observers or both are in motion relative to each other. Either the source or the observers or both move relative to and each other, the apparent pitch produced by the sounding body appears to be higher than actual pitch. In the same way, when the source moving towards the observers or the observers moving away from this source or both moving away from each other the apparent pitch will appear to be lower than the actual pitch of the sounding body. The apparent change in pitch due to relative motion between source and observer is known as the Doppler's principle. FROM THEORY TO PRACTICE! Now that we have seen how the Doppler Effect can be used to measure the speed of the vehicles, we will take a look at the commercial applications that are found at the side of the road. The basic of every speed camera is a SHF generator, which can transmit the beams in specific directions. From the previous section we know that the sensitivity of the device is directly of proportional to the frequency of the beams. The exact frequency depends on the manufacturer, which is generally between 2 GHz and 15 GHz. The power of oscillators is not very high (usually less than 10 mw), but the effect a power output is increased through the use of the directional aerials. The receiver for the reflected signal is often based on a shottky diode a, situated at the focal point of the aerial which functions as a mixer of transmitted and reflected signal. The output signal of the receiver is amplified, conditioned by an analogue circuit and then passed on to the measurement section, which is nothing more than a frequency counter. The signal from the frequency counter goes to the microprocessor that calculates the speed and sends it to display. It also checks if the measured speed exceeds the preset value and warns the police officer who are near by that of offenders has just passed or it activates the camera or flash gun. In short, the basic principle behind a high frequency speed detector is not very complex. HOW WELL DOES IT WORKS Now that we know how it all works. The may wonder how reliable the measurements made by these devices are. We will see the problem from a technical viewpoint to discover that what the limits of SHF speed cameras are. Operating during the rain or mist: In contrast the RADAR works perfectly well during a rain or mist. For example RADAR is used extensively to help the landing of airplanes in bad weather. In general, when it rains it comes down vertically which is right angles to the RADAR beam, bringing about a Doppler effect of zero (cos 90=0 soFm=0). Heavy rain that comes down at the angles due to strong gust of wind can't asset to the signal to noise ratio of the receiver and prevents its correct operation. In this case they processor will simply rejected the measurements. Since mist doesn't move with respect to RADAR beams it will be practically invisible to the receiver and the measurements are completely unaffected. So we can say that RADAR is not affected by wether conditions like rain or mist Reaction time: Just as in other equipment that use frequency counters the speed cameras also require a certain time to take a measurement. Furthermore, most devices now take several measurements so rapidly, making it possible to reject any possibly erroneous measurements. Older models required by about half a second to take a reliable measurement. Current models react with in tenth of a second, so any motorists who ignores speed limit will have little chance of avoid a fine after noticing a speed cameras. Sometimes the RADAR equipment also contains the Dsp, which uses special algorithms with the very short time, making extremely fast readings possible. |
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