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This paper proposes an embedded vision system for real-time moving object tracking using modified mean-shift algorithm for mobile robot application. This design of modified mean-shift algorithm fully utilizing the advanced parallelism of Field Programmable Gate Arrays (FPGA) is capable of processing real-time PAL video of 720*576 at 25 fps. This hardware implementation realizes time-consumed color...
To solve the non-uniformity problem of multi Time Delay Integral Charge Couple Device (TDICCD) mosaic camera, a non-uniformity correction algorithm is proposed and implemented on Field-Programmable Gate Array (FPGA) platform. Firstly, the generation and definition of non-uniformity are introduced; several common non-uniformity correction methods are discussed. Secondly, the correction algorithm is...
A real-time image defogging processing method based on FPGA is proposed to increase low-contrast of the aerial images in foggy vision conditions. According to the high similarity of the contiguous frame histogram in video image, the histogram equalization algorithm is improved to enhance the image contrast. The median filter algorithm is used to eliminate the noise of the image. The experimental results...
As the LHC luminosity is ramped up to 3×1034 cm-2 s-1 and beyond, the high rates, multiplicities, and energies of particles seen by the detectors will pose a unique challenge. Only a tiny fraction of the produced collisions can be stored on tape and immense real-time data reduction is needed. An effective trigger system must maintain high trigger efficiencies for the physics we are most interested...
In this paper we present a class of emergent algorithms called Marching Pixels which can be used for real time image processing in smart camera chips. Marching Pixels are based on hardware agents which are virtually crawling in a pixel grid image to find attributes like centroid, rotation and size of an arbitrary number of objects given in an image. Due to the distributed and local processing scheme...
Principle of image edge detection system and advantages of FPGA technique in processing speed and exploitation period are discussed briefly and feasibility based on Sobel operator to implement image edge detection is analyzed. Coprocessor module of image edge detection with EDA+FPGA technique is presented to meet the real-time request of image edge detection. Synthesis and waveform simulation prove...
A fast algorithm of extracting laser line is proposed for real-time image processing in 3DLCS and is compared with the former algorithm. First of all, the threshold S(T) of the laser stripe is computed by host computer unnecessarily in real time. Second the laser stripe is determined in real time. At last the central line of the laser stripe is detected by templates in real time. The fast algorithm...
We report on the implementation of an algorithm and hardware platform to allow real-time processing of the statistics-based positioning (SBP) method for continuous miniature crystal element (cMiCE) detectors. The SBP method allows an intrinsic spatial resolution of ~1.6 mm FWHM to be achieved using our cMiCE design. Previous SBP solutions have required a postprocessing procedure due to the computation...
The paper discussed how improve the detection probability of small targets in the complicated background of low signal noise ratio, algorithm of an improved image enhancement and digital filtering are presented for improve image quality, and improve signal to noise ratio, that is achieve the suppressing background noise and enhance the purpose of small targets. For requirements of real-time infrared...
Due to huge computational loads and the state of art of current hardware, nowadays how to implement real-time vision tasks on a signal chip is still a great interesting work. It is critical for eventually accomplishing biointelligence on robots, whatever humanoid robots, insect robots or even space robots. This paper presents a design of a so-called visual brain chip for robotic vision applications...
Image super resolution is the process of combining a set of overlapping low-resolution images to produce a single high-resolution image. In this paper, a novel real-time super-resolution system is presented which is based on a weighted mean super-resolution algorithm combined with the existing fast and robust multi-frame super-resolution algorithm. The resource requirements of the proposed architecture...
A lot of vital defects appear in the process of fabrication of IC wafer. Material defect which mainly causes circuits to be connection failure is an important factor of reducing the yield of IC. So the inspection of material defect is one of the most important things to do for guaranteeing the quality of IC. In this paper, a machine visual test system is designed with AOI (automated optical inspection)...
Canny edge detector treats edge detection as a signal processing problem to design an optimal edge detector and has been widely used for edge detection. However, the traditional Canny edge detector has two shortcomings. First, the threshold of the algorithm needs to be set by manual. Secondly, the algorithm is very time consuming and can not be implemented in real time. A new self-adapt threshold...
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