By Tarek Elarabi, Visit Amazon's Ahmed Abdelgawad Page, search results, Learn about Author Central, Ahmed Abdelgawad, , Magdy Bayoumi
ISBN-10: 3319060708
ISBN-13: 9783319060705
ISBN-10: 3319060716
ISBN-13: 9783319060712
This booklet introduces a unique transcoding set of rules for genuine time video purposes, designed to beat inter-operability difficulties among MPEG-2 to H.264/AVC. the hot set of rules achieves 92.8% relief within the transcoding run time at a cost of a suitable height Signal-to-Noise Ratio (PSNR) degradation, permitting readers to exploit it for actual time video functions. The set of rules defined is evaluated via simulation and experimental effects. furthermore, the authors current a implementation of the recent set of rules utilizing box Programmable Gate Array (FPGA) and Application-specific average items (ASIC).
• Describes a singular transcoding set of rules for genuine time video purposes, designed to beat inter-operability difficulties among H.264/AVC to MPEG-2;
• Implements set of rules provided utilizing box Programmable Gate Array (FPGA) and Application-specific built-in Circuit (ASIC);
• Demonstrates the answer to actual difficulties, with verification via simulation and experimental results.
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Extra resources for Real-Time Heterogeneous Video Transcoding for Low-Power Applications
Example text
264/AVC standard has been widely implemented in most mobile multimedia terminals due to its high encoding efficiency at the cost of minimum visual quality degradation. Also, it has shown a high network adaptive capability for error prone networks like mobile channels, which have high tendency for bit errors and packet losses. 1 Introduction 49 Fig. 264/AVC standard encoder architecture Fig. g. Digital Video Broadcasting (DVB) and Internet video conferences, etc. 264/AVC standard employs many new coding tools to improve the coding performance compared to previous standards, which include, but not limited to, the variable block size motion estimation, the integer Discrete Cosine Transform (iDCT) and the Context Adaptive Binary Arithmetic Coding (CABAC) [2].
264/AVC Intra prediction process, every macro-block is encoded by using neighboring MBs’ samples, which have been already encoded within the same frame. The Intra frame coding methodology is comparable to that of the JPEG2000 image compression [4]. 264/AVC video coding standard, is suitable for both image and video compression. 264/AVC codecs for interactive real-time video applications. 264/AVC standard and to adapt it for interactive real-time applications. 264/AVC. 1 Introduction 51 Fig. 5 The FPGA and the ASIC hardware implementations interesting work has been introduced in [8].
264/AVC Transcoding Algorithm 39 Fig. 264/AVC transcoding algorithm factor to the QP threshold indicates a smooth enough macro-block, then the mode decision is set to the 16 × 16 mode. Otherwise, the mode decision is set to the 4 × 4 mode. 3) n=0 3 SF = n=0 where E n refers to the estimated energy of the nth 8 × 8 sub macro-block. DC Tn (0, 0) is the DCT’s DC value of the nth macro-block. E¯ is the average estimated energy of the current four 8 × 8 macro-blocks. And, S F is the estimated smoothness factor for the current 16 × 16 macro-block.
Real-Time Heterogeneous Video Transcoding for Low-Power Applications by Tarek Elarabi, Visit Amazon's Ahmed Abdelgawad Page, search results, Learn about Author Central, Ahmed Abdelgawad, , Magdy Bayoumi
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