A Low-cost VLSI Design of Extended Linear Interpolation for Real Time Digital Image Processing

2008 ◽  
Author(s):  
Chung-chi Lin ◽  
Ming-hwa Sheu ◽  
Huann-keng Chiang ◽  
Zeng-chuan Wu ◽  
Jia-yi Tu ◽  
...  
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Digital Image Processing ◽  
Digital Image ◽  
Low Cost ◽  
Vlsi Design ◽  
Linear Interpolation

A Data Parallel Implementation Scheme of Geometric Operations

2014 ◽  
Vol 519-520 ◽  
pp. 719-723
Author(s):  
Guang Wang
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Digital Image Processing ◽  
Digital Image ◽  
Parallel Implementation ◽  
Computation Complexity ◽  
The Real ◽  
Data Parallel ◽  
Implementation Scheme ◽  
Time Requirements

A data parallel implementation of geometric operations is proposed and conclusions are proved. It shows that the computation complexity of data parallel implementation scheme presented in this paper is Ο(M+N). It can be used to improve the efficiency of geometric operations and can easily meet the real time requirements of the digital image processing.

Remote Sensing of Bridge Displacement Using Digital Image Processing Techniques

2006 ◽  
Vol 321-323 ◽  
pp. 404-409 ◽  
Author(s):  
Jong Jae Lee ◽  
Masanobu Shinozuka ◽  
Soo Jin Cho
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Digital Image Processing ◽  
Digital Image ◽  
Shaking Table Test ◽  
Field Tests ◽  
Video Camera ◽  
Shaking Table ◽  
Image Processing Techniques ◽  
Processing Techniques

In this study, an optical method of real-time displacement measurement of such bridges was carried out by means of digital image processing techniques. A commercially available digital video camera combined with a telescopic device takes a motion picture of the target panel with known geometry, which is installed on the measurement location of a bridge. The displacement of the target is calculated based on the captured images in real-time manner using image processing techniques, which require a texture recognition algorithm, projection of the captured image, and calculation of the actual displacement using target geometry and number of pixels moved. For the purpose of verification of the presented method, a laboratory test was made using shaking table test and the measured displacement by image processing techniques was compared with the data from a contact-type sensor, a linear variable differential transformer (LVDT). The proposed method gave close results to a conventional sensor. Field tests were carried out on a bridge with steel plate girders and a bridge with steel box girders. The test results gave sufficient dynamic resolution in frequency as well as the amplitude.

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