نوع مقاله : مقاله مروری
نویسنده
دانشکده مهندسی کامپیوتر ، دانشگاه آزاد اسلامی، واحد تهران شمال، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
Multimedia systems with built-in error tolerance and H.264 compression algorithm have some error tolerance capabilities that are generally used in data compression and transmission. These capabilities can maintain the quality and functionality of the system when errors occur in the system. H264 or AVC, which is used to reduce video volume while maintaining image quality, uses various methods such as homogeneous conversion, asymmetric conversion, predictive processing and word encryption, and HD speed is used to support high resolutions. The use of error tolerance to reduce the bit rate of images in multimedia systems is given. It is also mentioned that it is improved by using filters and simpler methods for image recovery and error tolerance, and depth search method is also used to improve image quality in complex scenes. This algorithm is also error tolerant in dealing with possible errors in compression and transmission. Our review article is based on the fault-tolerant low-power approach, which is proposed to reduce the memory power consumption in the multimedia system. This approach involves changing the supply voltage suddenly to a value greater than what is considered safe under operating conditions while maintaining efficiency. This article offers a review on improving performance and reducing power consumption in multimedia systems using fault tolerance. We start with the H.264 sample as a base model and use the model to construct a fault-tolerant low-power approach. H.264 is a compression algorithm with an acceptable error that uses different methods such as homogeneous conversion, asymmetric conversion, predictive processing, word encoder. This algorithm dynamically calculates the size optimization of the video file at every moment. In the proposed algorithm, we reduce the bit rate of the images, reduce the amount of noise and thus reduce the bandwidth consumption. The algorithm includes intermediate and internal coding, and we change the built-in memories of special multimedia integrated circuit, ASIC. Error tolerance has been applied through image filtering by reducing and improving PSNR and using simple filters for image recovery. The results of the article on H266, H265, H264 decoders show that the amount of power storage is more than 40% possible.
کلیدواژهها [English]
فصلنامه تخصصی آرمان پردازش، دوره 4، شماره 1، بهار 1402
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