IEEE J Biomed Health Inform - High-resolution, low-delay, and error-resilient medical ultrasound video communication using H.264/AVC over mobile WiMAX networks.

Tópicos

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Resumo

In this study, we describe an effective video communication framework for the wireless transmission of H.264/AVC medical ultrasound video over mobile WiMAX networks. Medical ultrasound video is encoded using diagnostically-driven, error resilient encoding, where quantization levels are varied as a function of the diagnostic significance of each image region. We demonstrate how our proposed system allows for the transmission of high-resolution clinical video that is encoded at the clinical acquisition resolution and can then be decoded with low-delay. To validate performance, we perform OPNET simulations of mobile WiMAX Medium Access Control (MAC) and Physical (PHY) layers characteristics that include service prioritization classes, different modulation and coding schemes, fading channels conditions, and mobility. We encode the medical ultrasound videos at the 4CIF (704 ? 576) resolution that can accommodate clinical acquisition that is typically performed at lower resolutions. Video quality assessment is based on both clinical (subjective) and objective evaluations.

Resumo Limpo

studi describ effect video communic framework wireless transmiss havc medic ultrasound video mobil wimax network medic ultrasound video encod use diagnosticallydriven error resili encod quantiz level vari function diagnost signific imag region demonstr propos system allow transmiss highresolut clinic video encod clinic acquisit resolut can decod lowdelay valid perform perform opnet simul mobil wimax medium access control mac physic phi layer characterist includ servic priorit class differ modul code scheme fade channel condit mobil encod medic ultrasound video cif resolut can accommod clinic acquisit typic perform lower resolut video qualiti assess base clinic subject object evalu

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