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Vision based localization has been investigated for many years. The existing Structure from Motion (SfM) technique can reconstruct the 3D models based on the input images. The image retrieval and feature matching allow us to find the correspondence between the query image and the 3D model. According to these, the location can be easily calculated. In mobile scenarios, the limited CPU speed, memory...
In this paper, we review recent advances in mobile media communication, processing, and analysis. To identify the opportunities and challenges in fast growing mobile media computing, we discuss several emerging topics including mobile visual search, retargeting, mobile video streaming, and cloud based mobile media computing. According to the infrastructure of mobile devices vs. servers, we come up...
In this paper, we propose a scalable video adaptation mechanism to improve the overall quality of service (QoS) in wireless home networks with a mixture of IPTV and VoD users. Unlike most of the existing studies on video streaming over WLANs, which usually focus on only one type of video streams, either stored videos or live videos, here we consider a mixture of live and stored videos. We make use...
In this paper, we address the problem of evaluating perceptual visual quality of compressed video under different settings for mobile communication. A 5-dimensional video feature space is constructed with the codec type, video content, frame size, frame rate and bitrate. The video quality assessment is formulated as a transformation between the multidimensional feature space and the quality space...
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