کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
734305 1461618 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adaptive video compressed sampling in the wavelet domain
ترجمه فارسی عنوان
نمونه برداری فشرده ساز ویدئو در دامنه موجک
کلمات کلیدی
تصویربرداری محاسباتی، تکنیک های بازسازی عکس، تصویربرداری زمان، موجها
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی


• A multiscale framework for compressed video acquisition is proposed.
• Redundancy is removed by using wavelet-based sparse sampling and motion estimation.
• Video sequences can be retrieved from compressed measurements in real time.
• The proposed method allows adaptive control over the reconstructed video quality.
• The reconstruction time and measurements required can be significantly reduced.

In this work, we propose a multiscale video acquisition framework called adaptive video compressed sampling (AVCS) that involves sparse sampling and motion estimation in the wavelet domain. Implementing a combination of a binary DMD and a single-pixel detector, AVCS acquires successively finer resolution sparse wavelet representations in moving regions directly based on extended wavelet trees, and alternately uses these representations to estimate the motion in the wavelet domain. Then, we can remove the spatial and temporal redundancies and provide a method to reconstruct video sequences from compressed measurements in real time. In addition, the proposed method allows adaptive control over the reconstructed video quality. The numerical simulation and experimental results indicate that AVCS performs better than the conventional CS-based methods at the same sampling rate even under the influence of noise, and the reconstruction time and measurements required can be significantly reduced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 81, July 2016, Pages 90–99
نویسندگان
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