The diverse display screen imposes significant challenges for assessing the perceptual media quality across different mobile devices. In this paper, the perceived image quality on different mobile phones is investigated. Firstly, subjective experiments for image quality evaluation are implemented on 9 popular mobile phones and a broadcast-quality monitor to evaluate the impact on perceived image quality regarding the screen resolution, screen size, image resolution, and image coding quality. Furthermore, the effect of mutual interaction between the image resolution and screen resolution is analyzed and an integrated assessment parameter is proposed to establish a device-dependent image quality assessment model. This model can be used to predict the user’s perceptual quality of the images displayed on different mobile devices. Experimental results using twofold cross-validation indicate that the proposed model can accurately estimate users’ perceived image quality on mobile devices.
Mammalian target of rapamycin (mTOR) is a serine/threoninespecific kinase complex and its-mediated pathway play key roles in cell growth, proteo-synthesis, ribosomal biogenesis, transcriptional regulation, lipid metabolism, and autophagy. 1 The mTOR signalling pathway is the second most frequently altered pathway in human cancers and its aberrant activation contributes to tumor proliferation, angiogenesis, invasion and survival. 2 Angiogenesis, a formation of new blood vessel from pre-existing ones, is required for solid tumor development. 3 Retinoblastoma is characterized with extensive vascularization and thus targeting mTOR signalling might represent a more effective therapeutic strategy for retinoblastoma as mTOR is critically involved in both tumor and angiogenesis. In support of this hypothesis, we previously demonstrated that temsirolimus, FDA-approved mTOR-targeted drug for the treatment
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