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Motion magnification helps us visualize subtle, imperceptible motion. However, prior methods only work for 2D videos captured with a fixed camera. We present a 3D motion magnification method that can magnify subtle motions from scenes…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Brandon Y. Feng , Hadi Alzayer , Michael Rubinstein , William T. Freeman , Jia-Bin Huang

The ability to amplify or reduce subtle image changes over time is useful in contexts such as video editing, medical video analysis, product quality control and sports. In these contexts there is often large motion present which severely…

计算机视觉与模式识别 · 计算机科学 2017-04-25 Yichao Zhang , Silvia L. Pintea , Jan C. van Gemert

Plants are fundamentally important to life. Key research areas in plant science include plant species identification, weed classification using hyper spectral images, monitoring plant health and tracing leaf growth, and the semantic…

计算机视觉与模式识别 · 计算机科学 2020-09-15 K. K. Thyagharajan , I. Kiruba Raji

Photosynthetic eukaryotes show a remarkable variability in photosynthesis, including large differences in light harvesting proteins and pigment composition. In vivo circular spectropolarimetry enables us to probe the molecular architecture…

生物大分子 · 定量生物学 2018-08-27 C. H. Lucas Patty , Freek Ariese , Wybren Jan Buma , Inge Loes ten Kate , Rob J. M. van Spanning , Frans Snik

Recent advances in artificial intelligence make it progressively hard to distinguish between genuine and counterfeit media, especially images and videos. One recent development is the rise of deepfake videos, based on manipulating videos…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Rashmiranjan Das , Gaurav Negi , Alan F. Smeaton

Why do plants reflect in the green and have a 'red edge' in the red, and should extrasolar photosynthesis be the same? We provide: 1) a brief review of how photosynthesis works; 2) an overview of the diversity of photosynthetic organisms,…

天体物理学 · 物理学 2009-11-13 Nancy Y. Kiang , Janet Siefert , Govindjee , Robert E. Blankenship

Commercial plant phenotyping systems using fixed cameras cannot perceive many plant details due to leaf occlusion. In this paper, we present Botany-Bot, a system for building detailed "annotated digital twins" of living plants using two…

Generalising vision-based manipulation policies to novel environments remains a challenging area with limited exploration. Current practices involve collecting data in one location, training imitation learning or reinforcement learning…

机器人学 · 计算机科学 2024-09-10 Eugene Teoh , Sumit Patidar , Xiao Ma , Stephen James

Video motion magnification techniques allow us to see small motions previously invisible to the naked eyes, such as those of vibrating airplane wings, or swaying buildings under the influence of the wind. Because the motion is small, the…

计算机视觉与模式识别 · 计算机科学 2019-02-18 Tae-Hyun Oh , Ronnachai Jaroensri , Changil Kim , Mohamed Elgharib , Frédo Durand , William T. Freeman , Wojciech Matusik

Automatic plant recognition and disease analysis may be streamlined by an image of a complete, isolated leaf as an initial input. Segmenting leaves from natural images is a hard problem. Cluttered and complex backgrounds: often composed of…

计算机视觉与模式识别 · 计算机科学 2017-09-20 N. Anantrasirichai , Sion Hannuna , Nishan Canagarajah

In this paper we show how inter-cellular molecular communication may change the overall levels of photosynthesis in plants. Individual plant cells respond to external stimuli, such as illumination levels, to regulate their photosynthetic…

分子网络 · 定量生物学 2021-03-30 Hamdan Awan , Raviraj S. Adve , Nigel Wallbridge , Carrol Plummer , Andrew W. Eckford

Leaves are the organs that intercept light and create photosynthesis. Efficient light interception is provided by leaves oriented orthogonal to most of the sun rays. Except in the polar regions, this means orthogonal to the direction of…

软凝聚态物质 · 物理学 2016-02-11 Loic Tadrist , Baptiste Darbois Texier

This paper proposes a novel framework for fluorescence plant video processing. The plant research community is interested in the leaf-level photosynthetic analysis within a plant. A prerequisite for such analysis is to segment all leaves,…

计算机视觉与模式识别 · 计算机科学 2017-05-10 Xi Yin , Xiaoming Liu , Jin Chen , David M. Kramer

We present a self-supervised approach to in-the-wild image relighting that enables fully controllable, physically based illumination editing. We achieve this by combining the physical accuracy of traditional rendering with the…

图形学 · 计算机科学 2025-08-08 Chris Careaga , Yağız Aksoy

Large scale simulations of light-matter interaction in natural photosynthetic antenna complexes containing more than one hundred thousands chlorophyll molecules, comparable with natural size, have been performed. Photosynthetic antenna…

Video Motion Magnification (VMM) aims to break the resolution limit of human visual perception capability and reveal the imperceptible minor motion that contains valuable information in the macroscopic domain. However, challenges arise in…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Fei Wang , Dan Guo , Kun Li , Meng Wang

We present a joint theory-experiment study on ultrafast photoluminescence from photoexcited graphene. Based on a microscopic theory, we reveal two distinct mechanisms behind the occurring photoluminescence: Besides the well-known incoherent…

介观与纳米尺度物理 · 物理学 2015-07-28 Torben Winzer , Richard Ciesielski , Matthias Handloser , Alberto Comin , Achim Hartschuh , Ermin Malic

Photosynthesis first step mechanism concerns the sunlight absorption and both negative and positive charges separation. Recent and important photosynthesis literature claims that this mechanism is quantum mechanics controlled, however…

Plant life plays a critical role in the ecosystem. However, it is difficult for humans to perceive plants' reactions because the biopotential and biochemical responses are invisible to humans. Guttation droplets contain various chemicals…

The study of how photosynthetic organisms convert light offers insight not only into nature's evolutionary process, but may also give clues as to how best to design and manipulate artificial photosynthetic systems -- and also how far we can…

软凝聚态物质 · 物理学 2011-07-07 Felipe Caycedo-Soler , Ferney J. Rodriguez , Luis Quiroga , Guannan Zhao , Neil F. Johnson
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