Image Noise Preprocessing of Interactive Projection System Based on Switching Filtering Scheme
نویسندگان
چکیده
منابع مشابه
A Laplacian based image filtering using switching noise detector
This paper presents a Laplacian-based image filtering method. Using a local noise estimator function in an energy functional minimizing scheme we show that Laplacian that has been known as an edge detection function can be used for noise removal applications. The algorithm can be implemented on a 3x3 window and easily tuned by number of iterations. Image denoising is simplified to the reduction...
متن کاملGeological noise removal in geophysical magnetic survey to detect unexploded ordnance based on image filtering
This paper describes the application of three straightforward image-based filtering methods to remove the geological noise effect which masks unexploded ordnances (UXOs) magnetic signals in geophysical surveys. Three image filters comprising of mean, median and Wiener are used to enhance the location of probable UXOs when they are embedded in a dominant background geological noise. The study ar...
متن کاملImage Preprocessing of CMOS Image Acquisition System Based on FPGA
The paper introduces a high-frame-rate and high-resolution image acquisition system with DVI Interface, which uses the CMOS image sensor of 2.3 million pixels as the light-sensitive chip and a high-performance FPGA as the main processor. In order to get better image quality and correct the unrealistic color, the image preprocessing is implemented based on FPGA, including color space conversion ...
متن کاملImplementation of a 3-D Switching Median Filtering Scheme with an Adaptive LUM-Based Noise Detector
We present a Field Programmable Logic Devices (FPLDs) based implementation of a scalable filter architecture capable of detecting and removing impulsive noise in image sequences. The adaptive filter architecture is built using switching spatiotemporal filtering scheme and robust Lower-Upper-Middle (LUM) based noise detector. It uses highly optimized bit-serial pipelined implementation in Altera...
متن کاملImage Watermarking System Based on Centroid Projection
We propose an image watermarking system aiming at reducing false positive rate based on the location changes of centroids of several selected points. Two secret keys are used to determine the number of selected points and the random number seed in the LL band of DWT domain, respectively, of the o r i g i ~ l and watermarked images. The number of modified pixel values is basically a tradeoff bet...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Complexity
سال: 2018
ISSN: 1076-2787,1099-0526
DOI: 10.1155/2018/1258306