کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7924822 | 1512497 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adaptive window thresholding for noise-robust photo detection in OCC
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Adaptive window thresholding for noise-robust photo detection in OCC Adaptive window thresholding for noise-robust photo detection in OCC](/preview/png/7924822.png)
چکیده انگلیسی
In an image sensor-based visible-light communication, noise reduction is essential for improving the transmission performance because each frame contains received data with various types of noises. In this study, we demonstrate the structures of receive (Rx) and transmit (Tx) frames for optical camera communication (OCC) by using the rolling shutter effect of a complementary metal-oxide semiconductor (CMOS) image sensor. We propose and demonstrate a three-step noise-reduction process for each frame. The additive white Gaussian noise is reduced by using “signal averaging,” and the background noise is reduced via “adaptive window thresholding” with “normalization.” By using the proposed method, this system shows noise tolerance. We experimentally demonstrate an 8.55-kBd error-free optical camera transmission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 426, 1 November 2018, Pages 623-628
Journal: Optics Communications - Volume 426, 1 November 2018, Pages 623-628
نویسندگان
Joon-Woo Lee, Sung-Jin Kim, Sang-Kook Han,