Near-lossless Compression for High Frame Rate Videos

سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 978

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شناسه ملی سند علمی:

ICEE21_723

تاریخ نمایه سازی: 27 مرداد 1392

چکیده مقاله:

The widespread usage of internet, limited bandwidth of networks and different types of media all around the net causes a vast growth in compressing data with differentabilities and qualities. Nowadays, video is a popular media for everyday usage. In different research areas, there is a need forrecording events in high frame rates. Due to the high frame rate video constraints, using complex methods are not suitable for real-time coding of these videos and will increase the cost of the system. There are different lossless, lossy and near-lossless methods for compressing video sequences. Existing lossy methodscannot limit the subjective or objective loss to a certain upper bound. There have been works regarding lossless compression ofthese sequences, however these works offer modest compression ratios and in some cases will not be enough due to the large sizeof these sequences. In this paper we propose a near-lossless method that is comparable with successful existing methods of video compression and yet is simple enough for real-time applications. It includes the major conventional parts for this goal which are prediction, quantization and entropy coding. Asimple rate control is embedded by different approaches in quantization. The experimental results demonstrate good compression ratios while considering reliability due to control of the maximum pixel error

کلیدواژه ها:

Video compression ، High frame rate video ، Nearlossless ، Quantization

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