Color Transfer
1. 问题描述给定一张原图像：
和一张参考图像：
我们希望通过设计一个颜色转换算法，使得源图像具有目标图像的颜色风格，如下图：
2. 算法描述衡量一幅图像的颜色分布最基础的统计特征就是均值和标准差，文献[1]中便通过这两个特征对图像进行简单的变换并取得不错的效果。
首先，需要将图像的颜色空间从$RGB$空间变换到$l\alpha\beta$空间：
$RGB$空间$\rightarrow$ $XYZ$空间$$\begin{pmatrix}X\\Y\\Z\end{pmatrix}=\begin{pmatrix}0.5141&0.3239&0.1604\\0.2651&0.6702&0.0641\\0.0241&0.1228&0.8444\end{pmatrix}\begin{pmatrix}R\\G\\B\end{pmatrix}$$
$XYZ$空间$\rightarrow$ $LMS$空间$$\begin{pmatrix} L\\M\\S\end{pmatrix}=\begin{pmatrix} 0.38 ...
Low-Cost SPAD Sensing for Non-Line-Of-Sight Tracking, Material Classification and Depth Imaging
Authors:
CLARA CALLENBERG, University of Bonn, GermanyZHENG SHI, Princeton University, USAFELIX HEIDE, Princeton University, USAMATTHIAS B. HULLIN, University of Bonn, Germany
Link: https://light.princeton.edu/publication/cheapspad/
1. Background
Time-correlated imaging, or the recording of the optical response of a scene to transient illumination, allows to analyze the temporal dimension of light transport, a feature that is not accessible in pure intensity imaging
Time-correlated optical measu ...
Real-Time Global Illumination Decomposition of Videos
Author & Institution
ABHIMITRA MEKA*, Max Planck Institute for Informatics, Saarland Informatics Campus and GoogleMOHAMMAD SHAFIEI*, Max Planck Institute for Informatics, Saarland Informatics CampusMICHAEL ZOLLHÖFER, Stanford UniversityCHRISTIAN RICHARDT, University of BathCHRISTIAN THEOBALT, Max Planck Institute for Informatics, Saarland Informatics Campus, Germany
Link: http://gvv.mpi-inf.mpg.de/projects/LiveIlluminationDecomposition/
Abstract
Propose the first approach for the decomposi ...
Neural Light Transport for Relighting and View Synthesis
Author & Institution
XIUMING ZHANG, Massachusetts Institute of TechnologySEAN FANELLO and YUN-TA TSAI, GoogleTIANCHENG SUN, University of California, San DiegoTIANFAN XUE, ROHIT PANDEY, SERGIO ORTS-ESCOLANO, PHILIP DAVIDSON, CHRISTOPH RHEMANN, PAUL DEBEVEC, and JONATHAN T. BARRON, GoogleRAVI RAMAMOORTHI, University of California, San DiegoWILLIAM T. FREEMAN, Massachusetts Institute of Technology & Google
Link: http://nlt.csail.mit.edu/
Abstract
Light transport (LT)
The light transport ( ...
Fast Diffraction Pathfinding for Dynamic Sound Propagation
Author: Carl Schissler, Gregor Mückl, Paul Calamia
Institution: Facebook Reality Labs Research, USA
Link: https://dl.acm.org/doi/10.1145/3450626.3459751
Abstract
Diffraction is one the the most perceptually important yet difficult to simulate acoustic effects
A phenomenon that allows sound to propagate around obstructions and corners
A significant bottleneck in real-time simulation of diffraction:
The enumeration of high-order diffraction propagation paths in scenes with complex geometry
The ...
Recent Post
