کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
537251 870795 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Iterative second-order derivative-based deinterlacing algorithm
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Iterative second-order derivative-based deinterlacing algorithm
چکیده انگلیسی

In this paper, we introduce an iterative second-order derivative-based intra-field deinterlacing algorithm (ISDD). The proposed ISDD is composed of two steps: (1) preprocessing by a fast second-order derivative-based deinterlacing algorithm (FSDD), (2) iteratively refining the interpolated pixel by minimizing a mass second-order function. The function includes three components: the derivative difference, directional derivative, and isophote smoothing. The derivative difference is used to detect any intensity discontinuity in an image; the directional derivative is a supplement to the derivative difference to avoid oversmoothing; and isophote smoothing can reduce artifacts. The proposed ISDD can preserve image features and reduce the artifacts caused by conventional deinterlacing methods. Compared with existing deinterlacing algorithms, the proposed algorithm improves the peak signal-to-noise ratio while maintaining high efficiency.


► We study iterative second-order derivative-based intra-field deinterlacing method.
► ISDD is adaptive to the image feature for selecting the direction using derivatives.
► ISDD iteratively corrects the pre-processed image using FSDD.
► ISDD provides good reconstruction performance and requires a low computational cost.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing: Image Communication - Volume 28, Issue 5, May 2013, Pages 472–482
نویسندگان
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