• Virtual Reality Video Compression

• Personal Project
• Completed 2015

The cannes video codec builds upon the foundation of chicago with support for mixed reality content including stereoscopic 3D, 360° panoramas, and spherical video. Similar to chicago, cannes was designed to serve...

• Ultra HD Video Compression

• Personal Project
• Completed 2014

The chicago video codec builds upon the foundation of cairo with several improvements to increase coding efficiency for high resolution content. While cairo was modelled after h.264 AVC, chicago is modelled after h.2...

• JavaScript Video Decoder

• Commercial Project
• Completed 2014

ORBX is a proprietary video codec developed by OTOY for use in its suite of cloud streaming products. What makes ORBX unique is its fast decode speed and high efficiency. The codec is used across many platforms and is...

• ORBX: Advanced Video Codec

• Commercial Project
• Completed 2013

ORBX is a proprietary video codec developed by OTOY for use in its suite of cloud streaming products. What makes ORBX unique is its fast decode speed and high efficiency. The codec is used across many platforms and is...

• Lossless Video Compression

• Personal Project
• Completed 2011

Chennai is a lossless variation of the cairo codec. It retains most of the same features of cairo, including its motion prediction and differential coding stages, but skips the lossy quantization and chroma subsampli...

• Video Codec Development Toolkit

• Personal Project
• Completed 2011

An important part of the codec development process is having the right tools that allow us to carefully analyze the performance of the codec over time. During the initial development of cairo I built four indispensabl...

• Cairo Streaming Video Codec

• Personal Project
• Completed 2011

Cairo is a simple streaming video codec that I created in 2011 as part of the (now discontinued) everyAir mobile cloud gaming project. Its original purpose was to help us experiment with low latency game stream...

• Adaptive Binary Arithmetic Coding

• Personal Project
• Completed 2011

Context adaptive binary arithmetic coding, often abbreviated as CABAC, is an essential part of modern video compression. It performs lossless compression of a binary data stream without any prior knowledge of the par...

• Exponential Golomb Codes

• Personal Project
• Completed 2011

This project is a simple implementation of an exponential golomb coder which conserves space for lower values at the expense of higher values. Thus, these codes are useful for functions with higher probabilities of lo...

• everyAir: Personal Cloud Gaming

• Commercial Project
• Completed 2011

In 2010 I co-founded a software company called everyAir that sought to provide personal cloud gaming services to mobile devices. Our flagship product was a revolutionary remote desktop application designed from the g...

• H.264 on Xbox One

• Commercial Project
• Completed 2011

Part of my work on the Xbox One project involved work on a software implementation of H.264. Unfortunately the details of this work are not yet public, so I cannot diclose any information here.

• Primitive Texture Compression

• Personal Project
• Completed 2011

This is a very simple compressed image format that I designed in 2003 as part of my Vision 1.0 project. PTCX features a basic adaptive quantization scheme that is reasonably effective for low frequency texture informa...