Development and Field Test of a Laser-Based Nonintrusive Detection System for Identification of Vehicles on the Highway

Cheng, Harry H.; Shaw, Benjamin D.; Palen, Joe; Lin, Bin; Chen, Bo; Wang, Zhaoqing

doi:10.1109/tits.2005.848364

Cited by 33 publications

(12 citation statements)

References 3 publications

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“…The group of authors working on sensor development focuses on laser optical systems and laser telemetry. In the University of California-Davis, Cheng et al (Cheng et al, 2005;) developed a laser-based detector using a laser line projected on the ground and the reflected beam is collected and focused onto a photodiode array. Even though this sensor can provide information at speed, it uses two lasers.…”

Section: Review Of Related Work: Laser Scanner In Its Systemsmentioning

confidence: 99%

Laser Scanner: eSafety & ITS Applications

Ripoll¹

2012

Laser Scanner Technology

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Section: Review Of Related Work: Laser Scanner In Its Systemsmentioning

confidence: 99%

Laser Scanner: eSafety & ITS Applications

Ripoll¹

2012

Laser Scanner Technology

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“…3(a) and (b) shows the current and previous frames, respectively. The binary difference image according to (2) is shown in Fig. 3(c).…”

Section: Interframe Difference Techniquementioning

confidence: 99%

“…However, the main disadvantages related with them are that they need to be located within the pavement (hence subject to pavement damage).and installation and maintenance requires traffic disruption. For laser detector [2], a laser is located above the roadway, emitting a beam aimed at a photodiode array placed on the pavement. The vehicle detection is achieved when the vehicle breaks the laser beam and the photodiode array detects its presence.…”

Section: Introductionmentioning

confidence: 99%

Implementation of LabVIEW Based Intelligent System for Speed Violated Vehicle Detection

Adinarayana

Sirisha

Krishna

et al. 2011

Advances in Digital Image Processing and Information Technology

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Abstract. This research intends to develop the speed violated vehicle detection system using image processing technique. Overall works are the software development of a system that requires a video scene, which consists of the following components: moving vehicle, starting reference point and ending reference point. A dedicated digital signal processing chip is used to exploit computationally inexpensive image-processing techniques over the video sequence captured from the fixed position video camera for estimating the speed of the moving vehicles The moving vehicles are detected by analyzing the binary image sequences that are constructed from the captured frames by employing the interface difference or the background subtraction Algorithm. A novel adaptive Thresholding method is proposed to binarize the outputs from the interframe difference and the background subtraction techniques The system is designed to detect the position of the moving vehicle in the scene and the position of the reference points and calculate the speed of each static image frame from the detected positions and report, to speed violated vehicle information to the authorised remote station.

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“…The optical and electronic designs for a field prototype have been described in [5] and [6], and a patent for this detection system has been approved by the U.S. Patent Office [7]. This project aims to acquire parameters from moving vehicles such as speed and length.…”

Section: Application Of Noise Rejection Using Microchip-controllementioning

confidence: 99%

Noise Rejection Using Variable-Height Timing-Window Technique for Pulse Signals With Variable S/N Ratio

Wang

Chen

Cheng

et al. 2006

IEEE Trans. Instrum. Meas.

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Abstract-This paper proposes a novel technique, known as the variable-height timing window (TW), for rejecting noise in an active source detection system. The basic principle of a TW and a methodology of using a microprocessor to dynamically adjust the height of the TW are presented. This variable-height TW technique has been applied to a laser-based detection system (LBDS) for detecting vehicle information on highways. Field-test results of the LBDS showed that the adaptive nature of the proposed TW approach can effectively reject various types of noise under different environmental conditions. This variable-height TW technique can also be used to remove out-of-window noise and suppress the effect of in-window noise in various field environments in which the signal/noise (S/N ) ratio is variable.

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Development and Field Test of a Laser-Based Nonintrusive Detection System for Identification of Vehicles on the Highway

Cited by 33 publications

References 3 publications

Laser Scanner: eSafety & ITS Applications

Laser Scanner: eSafety & ITS Applications

Implementation of LabVIEW Based Intelligent System for Speed Violated Vehicle Detection

Noise Rejection Using Variable-Height Timing-Window Technique for Pulse Signals With Variable S/N Ratio

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