An Image Super-Resolution Reconstruction Method with Single Frame Character Based on Wavelet Neural Network in Internet of Things
Autor: | Ling-li Guo, Marcin Woźniak |
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Rok vydání: | 2020 |
Předmět: |
Computer Networks and Communications
Computer science business.industry Noise reduction ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 02 engineering and technology 01 natural sciences Image (mathematics) 010309 optics Wavelet Reflection (mathematics) Hardware and Architecture Feature (computer vision) 0103 physical sciences 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer vision Pinhole (optics) Artificial intelligence Noise (video) Image sensor business Software Information Systems |
Zdroj: | Mobile Networks and Applications. 26:390-403 |
ISSN: | 1572-8153 1383-469X |
DOI: | 10.1007/s11036-020-01681-6 |
Popis: | The application of the traditional single frame character image super-resolution reconstruction method has some problems, such as noise can not be removed completely and anti-interference performance is poor. A new method for the super-resolution reconstruction of single frame character image based on wavelet neural network is proposed. The structure and interface of image acquisition unit of solid state image sensor are designed. Combined with pinhole imaging model and camera self-calibration, image acquisition of Internet of Things is completed. An image degradation model was established to simulate the degradation process of ideal high-resolution image to low-resolution image. Wavelet threshold denoising method is used to remove the noise in a single frame character image and improve the anti-interference performance of the method. The wavelet neural network reflection model is used to reconstruct the single frame feature image and improve the resolution of the image. The experimental results show that the blur degree of the reconstructed image is always less than 5%. In the whole experiment, the accuracy of this method can be maintained at 80% ~ 90%. The image detail retention rate of the research method is relatively stable. With the increase of the number of experimental images, the retention rate of image details remains between 80% and 95%, indicating that the method is effective in practical application. |
Databáze: | OpenAIRE |
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