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Last Build Date: Thu, 25 Sep 2014 07:35:41 +0000


Computer Vision Challenge 4: OCR

Thu, 25 Sep 2014 07:35:41 +0000

This is a challenge we’re working on in the Silicon Valley Computer Vision Meetup.  This challenge is to use OCR to read a receipt. Specifically, this receipt: We’ll be using an OCR engine called Tesseract. To get started with Tesseract: … Continue reading

Computer Vision Challenge 3: Play Spot-It™

Fri, 28 Mar 2014 17:13:34 +0000

Our new challenge is to write a program that successfully plays the card game “Spot-It“. The Game There are several variations on the game, but the basic Spot-It mechanic is this: Two circular cards are turned over. Every pair of … Continue reading

Computer Vision Challenge 2: Object Tracking

Tue, 18 Feb 2014 02:36:05 +0000

This challenge is much more open-ended than the augmented reality challenge: Given a somehow-designated object in a scene, track that object as it moves about the scene. The object could be designated a number of different ways: 1. The largest … Continue reading

Computer Vision Challenge 1: Augmented Reality

Thu, 16 Jan 2014 02:10:32 +0000

This is a challenge we’re working through in the Silicon Valley Computer Vision Meetup. Feel free to follow along on your own. The source and supporting files are available in a GitHub repo. The first challenge is to implement augmented … Continue reading

Streaming Video for Pebble

Wed, 21 Aug 2013 03:21:20 +0000

Back in 2012, I participated in the Kickstarter for Pebble, a smart watch that talks to your smart phone via Bluetooth. I was looking forward to writing apps for it. Unfortunately, my first Pebble had a display problem and by … Continue reading

CVFunhouse, a iOS Framework for OpenCV

Fri, 16 Aug 2013 00:12:20 +0000

Ever since I took the free online Stanford AI class in fall of 2011, I’ve been fascinated by artificial intelligence, and in particular computer vision. I’ve spent the past year and a half teaching myself computer vision, and in particular … Continue reading

Your iPhone’s Seven Senses

Wed, 14 Aug 2013 22:12:11 +0000

Humans have five senses. Your iPhone has seven: Touchscreen Camera Microphone GPS (augmented by cell tower and WiFi location) Accelerometer Gyroscope Magnetometer (The magnetometer is normally used as a compass. But think for a moment — your iPhone can actually … Continue reading

A Brief Note on WikiPad

Tue, 06 Aug 2013 00:06:33 +0000

On Friday, July 22nd, I removed the app formerly known as WikiPad from the iOS app store. I’ve sold my rights to the name “Wikipad” to Wikipad, Inc., makers of the Wikipad gaming tablet. While the app is no longer … Continue reading

Shuttle Launch

Wed, 12 Mar 2008 03:37:00 +0000

So, it’s been a few months since I went to see the shuttle launch. It was okay. I guess you could sum up my feelings with that Peggy Lee song “Is That All There Is?” The reason that I went … Continue reading