Results 81 to 90 of about 1,236,863 (298)

High Dynamic Range Images Using Exposure Metering [PDF]

open access: yes, 2007
在真實的世界裡,景色的亮度差異是非常大的。我們人眼可以同時觀察到很暗及很亮的影像,也就是人眼能適應較大的亮度差異;然而,現在的相機因為裝置結構上的限制,因此無法取得較大的動態範圍影像。所以我們的研究致力於如何取得高動態範圍的影像。 有學者提出利用不同曝光時間來重建出高動態範圍影像的方法。因此我們延伸他們的方法,提出了如何選擇曝光比較好的照片來建立高動態影像的照片。我們的方法主要是量測影像的曝光亮度,然後決定這張照片是否適合我們。使用我們的方法除了能減少時間來重建取得高動態範圍影像外 ...
Chen, Kun-Yi, 陳坤毅
core  

Ghosting in HDR Video [PDF]

open access: yes, 2016
HDR video capture is a very important problem, the solution of which can facilitate the transition to an end-to-end HDR video pipeline. This problem is currently being tackled using various approaches.
Tursun, Okan Tarhan   +3 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

High Dynamic Range Imaging with TDC-Based CMOS SPAD Arrays

open access: yesInstruments, 2019
This paper investigates the use of image sensors based on complementary metal−oxide−semiconductor (CMOS) single-photon avalanche diodes (SPADs) in high dynamic range (HDR) imaging by combining photon counts and timestamps. The proposed method
Majid Zarghami   +3 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

High Dynamic Range Imaging by Perceptual Logarithmic Exposure Merging

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
In this paper we emphasize a similarity between the logarithmic type image processing (LTIP) model and the Naka–Rushton model of the human visual system (HVS).
Florea Corneliu   +2 more
doaj   +1 more source

Adaptive enhancement of sea surface targets in infrared high dynamic range image [PDF]

open access: yes, 2015
A high dynamic range infrared image of the sea surface scene includes the effects due to the sea clutter, mirror reflections from the wave facets, which decrease the visibility of the ship targets and their details.
Dong S(董帅), Qi L(亓琳)
core  

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

High Dynamic Range Mapping for Synthetic Aperture Radar Images

open access: yesTelfor Journal, 2018
Luminance compression is often performed for high dynamic range images (still images and videos). A nonlinear tone mapping is applied for the compression in order to reproduce high dynamic range images using devices with a more limited (low) dynamic ...
A. Gavrovska   +5 more
doaj   +1 more source

Learning Preferential Perceptual Exposure for HDR Displays

open access: yesIEEE Access, 2019
High dynamic range (HDR) displays are capable of displaying a wider dynamic range of values than conventional displays. As HDR content becomes more ubiquitous, the use of these displays is likely to accelerate.
Thomas Bashford-Rogers   +5 more
doaj   +1 more source

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