The image quality of two active matrix organic light emitting diode (AMOLED) smart-phone displays and in-plane switching (IPS) ones was visually assessed at levels ambient lighting conditions corresponding to indoor outdoor applications, respectively. Naturalness, colorfulness, brightness, contrast, sharpness, overall were evaluated via psychophysical experiment by categorical judgment method using test images selected from different application categories. experimental results show that the...

Video anomaly detection is an important task in the field of intelligent security. However, existing methods mainly detect and analyze videos from a single time direction, ignoring semantic information video context, which adversely affects accuracy. To address this issue, we design multi-branch generative adversarial network with context learning (MGAN-CL) to abnormal events. In particular, combine generate predicted frames, determine whether occurs by comparing frame actual frame....

Large-scale psychophysical experiments are carried out on two types of mobile displays to evaluate the perceived image quality (IQ). Eight perceptual attributes, i.e., naturalness, colorfulness, brightness, contrast, sharpness, clearness, preference, and overall IQ, visually assessed via categorical judgment method for various application test images, which were manipulated by different methods. Their correlations deeply discussed, further factor analysis revealed essential components...

An image quality model for smart mobile devices was proposed based on visual assessments of several attributes. A series psychophysical experiments were carried out two kinds devices, i.e., phones and tablet computers, in which naturalness, colorfulness, brightness, contrast, sharpness, clearness, overall visually evaluated under three lighting environments via categorical judgment method various application types test images. On the basis Pearson correlation coefficients factor analysis,...

Super resolution (SR) reconstruction is a profitable technology to acquire high images from low without replacing devices. This study was concentrated on searching strategies of dealing with color information in the SR process. Based an algorithm dictionary learning, different algorithms were designed test which coordinate systems could obtain better image quality, involving spaces RGB, YIQ, YCbCr, HSI, HSV, and CIELAB. Their results compared via typical numerical measures, recommended are...

The colorimetric characterization of active matrix organic light emitting diode (AMOLED) panels suffers from their poor channel independence. Based on the characteristics evaluation independence and chromaticity constancy, an accurate method, namely, polynomial compensation model (PC model) considering interactions was proposed for AMOLED panels. In this model, expressions are employed to calculate relationship between prediction errors XYZ tristimulus values digital inputs compensate...

The need for a portable image acquiring system has become as strong the extension of digital imaging technology, this, new mono-centric wide-field optical is proposed. Recently, some high-resolution and systems have been raised already, with which fairly clear wide field view (FOV) images could be easily obtained, however, their sizes are comparatively too large to conveniently carried . With ZEMAX, design emulated by scaling structure current introducing proposed lens-let arrays, size whole...

<title>Abstract</title> Characterizing the anatomical structure and connectivity between cortical regions is a critical step towards understanding information processing properties of brain will help provide insight into nature neurological disorders. A key feature mammalian cerebral cortex its laminar structure, with neocortex differentiated up to six layers. Identifying these layers in neuroimaging data important for providing foundation axonal projection patterns neurons brain. These can...

Currently, surveillance cameras are extensively employed in public security, and vehicle re-identification has emerged as a burgeoning research area computer vision. Nevertheless, grapples with the challenges of low intra-class similarity high inter-class similarity. This study tackles these by introducing novel method that integrates convolution vision transformer features. Specifically, channel-by-channel is incorporated into feedforward layer to bolster extraction local Concurrently,...

Abstract Characterizing the anatomical structure and connectivity between cortical regions is a critical step towards understanding information processing properties of brain will help provide insight into nature neurological disorders. A key feature mammalian cerebral cortex its laminar structure. Identifying these layers in neuroimaging data important for their global to understand patterns neurons brain. We studied Nissl-stained myelin-stained slice images common marmoset (Callithrix...

AbstractAbstractIn recent years, economic growth of China depends on the upgrading industrial structure. reviewing Chinese literatures about structure research has both theoretical and practical significances. This paper bibliometrically analyzed articles in CNKI Journal Database from 1992 to 2015 by using visualization software CiteSpace. Then this statistically found opposite movement trends between rate volume researching structure, summarized 16 frontiers based spectral clustering...

Taking the chromaticity inconstancy of LCDs and inverse efficiency into account, a novel local colorimetric characterization model was developed in this Letter. Rather than dividing device color space many subspaces to refine description as existent models, proposed tailored transformation relationship uniquely for each characterized with look-up tables matrix. Based on model, task could be efficiently accomplished within few steps either forward or transformation. Test experiments several...

High-resolution measurement of refractive index has a wide range application and employment the plasmon resonance absorption combined with phase detection is promising way to achieve 8-digit resolution. However, because in light-wave frequency not simple, we would like report on method refractive-index by using efficiency-alone interrogation. The basic idea comes from fact that TM-wave diffraction efficiency metal grating placed conical mounting can be extremely small at angle (the polar...

This study aims to expand the applications of color appearance models representing perceptual attributes for digital images, which supplies more accurate methods predicting image brightness and colorfulness. Two typical models, i.e., CIELAB model CIECAM02, were involved in developing algorithms predict colorfulness various three designed handle pixels different contents. Moreover, massive visual data collected from psychophysical experiments on two mobile displays under lighting conditions...