IEEE Trans Image Process - JPEG2000-based scalable interactive video (JSIV) with motion compensation.

Tópicos

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Resumo

In a recent work, the authors proposed a novel paradigm for interactive video streaming and coined the term JPEG2000-Based Scalable Interactive Video (JSIV) for it. In this work, we investigate JSIV when motion compensation is employed to improve prediction, something that was intentionally left out in our earlier treatment. JSIV relies on three concepts: storing the video sequence as independent JPEG2000 frames to provide quality and spatial resolution scalability, prediction and conditional replenishment of code-blocks to exploit inter-frame redundancy, and loosely coupled server and client policies in which a server optimally selects the number of quality layers for each code-block transmitted and a client makes the most of the received (distorted) frames. In JSIV, the server transmission problem is optimally solved using Lagrangian-style rate-distortion optimization. The flexibility of JSIV enables us to employ a wide variety of frame prediction arrangements, including hierarchical B-frames. JSIV provides considerably better interactivity compared with existing schemes and can adapt immediately to interactive changes in client interests, such as forward or backward playback and zooming into individual frames. Experimental results show that JSIV's performance is inferior to that of SVC in conventional streaming applications while JSIV performs better in interactive browsing applications.

Resumo Limpo

recent work author propos novel paradigm interact video stream coin term jpegbas scalabl interact video jsiv work investig jsiv motion compens employ improv predict someth intent left earlier treatment jsiv reli three concept store video sequenc independ jpeg frame provid qualiti spatial resolut scalabl predict condit replenish codeblock exploit interfram redund loos coupl server client polici server optim select number qualiti layer codeblock transmit client make receiv distort frame jsiv server transmiss problem optim solv use lagrangianstyl ratedistort optim flexibl jsiv enabl us employ wide varieti frame predict arrang includ hierarch bframe jsiv provid consider better interact compar exist scheme can adapt immedi interact chang client interest forward backward playback zoom individu frame experiment result show jsiv perform inferior svc convent stream applic jsiv perform better interact brows applic

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