• Interactive Poisson Blending on GPU
    Interactive Poisson Blending on GPU
  • 404 Not Found In Two Triangles
    404 Not Found In Two Triangles
  • Simplest and Fastest GLSL Edge Detection using Fwidth
    Simplest and Fastest GLSL Edge Detection using Fwidth

[Talk Summary] HandSight: A Touch-Based Wearable System to Increase Information Accessibility for People with Visual Impairments

My prior collaborator, Lee Stearns, presented his dissertation talk today. HandSight: A Touch-Based Wearable System to Increase Information Accessibility for People with Visual Impairments Please refer to http://www.leestearns.com for more details. An incomplete outline is summarized below: Related Work OrCam, Access Lens, Access Lens, OmniTouch, VizLens (UIST 2016), ForeSee, Google Glass, eSight, NuEyes, IrisVisio Reading / Exploring…


[Talk Summary] A large-scale analysis of YouTube videos depicting everyday thermal camera use

Matt present his Ph.D. defense today. The talk is entitled “A large-scale analysis of YouTube videos depicting everyday thermal camera use”. Both talk and slides are structured of the top quality. Please refer to http://www.cs.umd.edu/~mattm/#pubs for more details about Matt’s slides and papers. Next is a brief outline.   Energy audits and thermometric surveying are time…


[Summary] Google I/O and Microsoft Build 2018

Today, two technology festivals were held in Mountain View and Redmond respectively: Google I/O and Microsoft Build 2018. In summary, both companies have all in AI. Google published email auto-completion, photo auto-spot, auto-colorization, better sound synthesis, memorable Q&A, Android P, text from images, style match. Microsoft presented its Fluent Design, Azure AI-enabled edge devices (phone,…


[Summary] StackGAN: Text to Photo-realistic Image Synthesis

StackGAN Results

StackGAN has got nearly 200 citations since first appeared on arXiv on December 10, 2016.  The StackGAN is the first to generate 256*256 image with photo-realistic details from text description.   Generative Adversarial Network (GAN), originally proposed by Ian. It takes advantage of a generator network and a discriminator. The generator is trained to fool…


[Summary] Omnipresence 3D for Multiview Mixed Reality

Christian Laforte leads the development of Fortem’s Omnipresence 3D software. It helps organizations prevent costly mistakes and respond to incidents in record time — protecting our communities against increasingly complex security threats. This is definitely a great leap of my prior work, VideoFields. At the time, I was offered only three surveillance video cameras and would…


[Summary] PointNet, PointNet++, and PU-Net

Shuo Li presented a talk at GVIL weekly seminar: PointNet, PointNet++, and PU-Net PointNet Instead of 3D convolution, PointNet directly consumes point clouds, which well respects the permutation invariance of points in the input. A point cloud is an unordered set of vectors. Each point Pi is a vector of its (x, y, z) coordinate plus extra…


Gradient, Circulation, Laplacian, Divergence, Jacobian, Hessian, and Trace

Here is a summary of all these concepts. Most the concepts are from Wikipedia. A larger figure is shown below: In mathematics, the gradient is a multi-variable generalization of the derivative. While a derivative can be defined on functions of a single variable, for functions of several variables, the gradient takes its place. The gradient…


[Summary] Talk by Dr. Chakareski: Networked Virtual and Augmented Reality: The New Frontier

Jacob Chakareski is an Assistant Professor of Electrical and Computer Engineering at The University of Alabama, where he leads the Laboratory for VR/AR Immersive Communication (LION). His interests span networked virtual and augmented reality systems, UAV-IoT sensing and communication, and rigorous machine learning for stochastic control. Dr. Chakareski received the Adobe Digital Experience Faculty Research…


Estimated Cost of Per Atom Function in Real-time Shaders on the GPU

I have created a grouped list of estimated cost of instructions according to this Chinese reference. This may not be accurate, but is mostly correct from my experience. Some intuitions are: Abs, saturate are free (Why is clamp in GLSL not free? I doubt it) Log, exp, sqrt are almost free! (That’s why Kernel Foveated Rendering…


Tianqi Chen published WebGL-based deep learning…

Tianqi Chen, a senior fellow student from ACM Class of Shanghai Jiao Tong University (now at UW) published TVM, which introduced the first WebGL-based deep learning… This is fully possible given existing neural network code on ShaderToy… But still, real-time deep learning at the browser side is clever, and ambitious… and they did it!  …