Anatürk, M Demnitz, N Ebmeier, K P Sexton, C E
Published in
Neuroscience and biobehavioral reviews
Population aging has prompted considerable interest in identifying modifiable factors that may help protect the brain and its functions. Collectively, epidemiological studies show that leisure activities with high mental and social demands are linked with better cognition in old age. The extent to which socio-intellectual activities relate to the b...
N’guessan, Sylvia O. Ling, Nam
Published in
Multimedia Tools and Applications
We propose a saturation-aware human attention region-of-interest (SA-HAROI) video compression method that performs a perceptual adaptive quantization algorithm on video frames as a function of the distribution of their luminance, motion vector, and color saturation. Our work is an application of a psycho-visual study that demonstrated that human at...
Venkataraman, Hrishikesh Bi, Ting Wu, Ting Ghergulescu, Ioana Muntean, Gabriel-Miro
Published in
Wireless Personal Communications
One of the main challenges in the smart-phone world is that they are battery constrained and the development of battery technologies have not kept pace with the required energy demand. In particular, there are still significant technological gaps on developing energy-aware solutions that would prolong the battery life of devices without affecting t...
Blokland, Gabriëlla A M Wallace, Angus K Hansell, Narelle K Thompson, Paul M Hickie, Ian B Montgomery, Grant W Martin, Nicholas G McMahon, Katie L de Zubicaray, Greig I Wright, Margaret J
...
Published in
International journal of psychophysiology : official journal of the International Organization of Psychophysiology
In a population-based genome-wide association (GWA) study of n-back working memory task-related brain activation, we extracted the average percent BOLD signal change (2-back minus 0-back) from 46 regions-of-interest (ROIs) in functional MRI scans from 863 healthy twins and siblings. ROIs were obtained by creating spheres around group random effects...
Blokland, Gabriella Wallace, Angus Hansell, Narelle Thompson, Paul Hickie, Ian Montgomery, Grant Martin, Nicholas McMahon, Katie de Zubicaray, Greig Wright, Margie
...
Highlights - We used voxel-level BOLD heritability to define region-of-interest phenotypes. - We performed genome-wide association on 20 n-back functional MRI BOLD phenotypes. - A BANK1 SNP explained 5.5% of variance in supramarginal gyrus n-back BOLD signal. - 31 independent SNPs were associated with BOLD signal change at p −5. Abstract In a popul...
Blokland, Gabriella Wallace, Angus Hansell, Narelle Thompson, Paul Hickie, Ian Montgomery, Grant Martin, Nicholas McMahon, Katie de Zubicaray, Greig Wright, Margie
...
Highlights - We used voxel-level BOLD heritability to define region-of-interest phenotypes. - We performed genome-wide association on 20 n-back functional MRI BOLD phenotypes. - A BANK1 SNP explained 5.5% of variance in supramarginal gyrus n-back BOLD signal. - 31 independent SNPs were associated with BOLD signal change at p −5. Abstract In a popul...
Engelke, Ulrich Le Callet, Patrick
Region of interest (ROI) based image and video processing has attracted increased research efforts in recent years. The concept of perceptual ROI, however, is not always clearly defined leading to different interpretations between researchers related to bottom-up saliency (signal driven visual attention), top-down attention (subconscious, driven by...
Lee, Tae Hwan Lee, Yun-gu Song, Byung Cheol
Published in
Journal of Visual Communication and Image Representation
With the rapid development of portable digital video equipment, such as camcorders, digital cameras and smart phones, video stabilization techniques for camera de-shaking are strongly required. The cutting-edge video stabilization techniques provide outstanding visual quality by utilizing 3D motion, while early video stabilization is based on 2D mo...
Huang, Shu-Fen Chen, Mei-Juan Tai, Kuang-Han Li, Mian-Shiuan
Published in
EURASIP Journal on Advances in Signal Processing
This paper presents a video bit-rate transcoder for baseline profile in H.264/AVC standard to fit the available channel bandwidth for the client when transmitting video bit-streams via communication channels. To maintain visual quality for low bit-rate video efficiently, this study analyzes the decoded information in the transcoder and proposes a B...
Rosenkrantz, Andrew B. Matza, Brent W. Portnoy, Elie Melamed, Jonathan Taneja, Samir S. Wehrli, Natasha E.
Published in
European Journal of Radiology
IntroductionTo assess impact of size of regions-of-interest (ROI) on differentiation of RCC and renal cysts using multi-phase CT, with focus on differentiating papillary RCC (pRCC) and cysts given known hypovascularity of pRCC. Methods99 renal lesions (23 pRCC, 47 clear-cell RCC, 7 chromophobe RCC, 22 cysts) underwent multi-phase CT. Subjective pre...
