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Low-delay and error-resilient video coding is critical for real-time video communication over wireless networks. Intra-refresh coding, which embeds intra coded regions into inter frames can achieve a relatively smooth bit-rate and terminate the error propagation caused by the transmission loss. In this paper, we proposed a novel linear model for the intra-refresh cycle-size selection adapting to the...
Low-delay and error-resilience video coding are critical for real-time video communication over wireless networks. Intra-refresh coding, which embeds intra-coded regions into inter frames can achieve a relatively smooth bit-rate and terminate the error propagation caused by the transmission loss. In this paper, we proposed a novel linear model for the intra-refresh cycle size selection adapting to...
When videos are transmitted over the Internet, packet missing is inevitable and an entire frame may get lost. However, most of the literature on error concealment problems can only deal with block loss. For the case of frame loss, they usually fail to achieve satisfactory results. In this paper, we propose a highly effective frame concealment method, which gives amazingly good recovery quality. We...
This paper focuses on AVS video encoder implementation and optimization based on TMS320DM6446 DSP. A deep analysis is made of the algorithm of RM52i, which is the reference model of AVS and find the key modules that affect encoding speed. According to the characteristics of the structure, resources and instruction of DM6446, a lot of work have been done at the algorithm level, memory space allocation...
High error rate is critical to the wireless video transmission. Our paper tackles the problem of robust video streaming over error-prone channels. Basing on an autoresilient multiple-description coding method and a multi-path transmission strategy, further study is done on the computational complexity of rate-distortion optimization for video coding and transmission. A unitary-optimized operation...
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