Logan Williams
Recent content on Logan Williams
Latest posts
A medium year
Where is the Bird's House?
Bird Bod Biz
Bird signs and cycles
Bellingcat: OSM Search
Observatory
iNaturalist "Locals" and "Tourists"
Bellingcat: Coronavirus Relief Interactive
Stamen: 12 Sunsets
East Bay Live
East Bay Live was an experimental timeline-based police, fire, and EMS scanner application. While many radios still operate on a paradigm of channels, in reality, the modern “trunked” radio systems used by police and other organizations use only a small number of real frequency channels to support dozens of virtual channels. This allows a software-defined radio to listen to every…
Stamen: UCSF Health Atlas
glenecho.stream
Reflections, data, and observations of an urban creek. AIR HUMIDITY QUALITY WATER DEPTH TURBIDITY "With ongoing environmental degradation at local, regional, and global scales, people's accepted thresholds for environmental conditions are continually being lowered. In the absence of past information or experience with historical conditions, members of each new generation accept the situation in…
Carbon footprint modeling maps
Points West
Stamen: Art Processors
Stamen: Google Cloud Storage
Fogust
Conceptquest
59th St. Bridge Song
Isometric Spacelapse
By transposing the axes of time and image-space position, unusual aerial viewpoints can be generated. In these videos, all rays intersect the horizontal plane at the same angle and all objects are rendered at the same scale. With this isometric view, everything is granted equal importance and nothing can be diminished to the background. Hills stand next to buildings, and the foreground, so often…
Poet is used for poems
Vignette
Forty Million Daggers!
Looking In New Directions With Google Street View
Fog Today
No-tifier
For the Stupid Hackathon 2017, I made a portable wooden rectangle. Every few minutes, it buzzes briefly to deliver a notification. By carrying it in your pocket, you can be notified wherever you are, no matter what you are doing. The medium is the massage. You can make one yourself! I used an AVR microcontroller and a scavenged cell phone buzzer driven with a MOSFET. The source code is…
Caption Obscura
As Though I Were There
About the poem. If a landmark unrecognized does not exist, a non-existent landmark recognized becomes one. Cross the sidewalk and crest the ridgeline. Continue straight, past the library and through the marsh thistles. Follow the stream down the street. Knock on the door and collapse on the summit. What topographic ritual summons city from chaparral? Where is the boundary between psychogeography…
Thermografree
Computational photography
Two attempts to reproduce interesting results from computational photography papers. Phase based motion amplification From Phase-Based Motion Amplification, by Neal Wadhwa, Michael Rubinstein, Frédo Durand, and William T. Freeman. One of the most impressive results from the original paper, the motion of a sleeping baby's breath amplified. There are some small likely aliasing-related…
Phase-based frame interpolation
Hokusai backpack
A handmade backpack with custom dyed fabric based on Hokusai’s Kirifuri Waterfall at Kurokami Mountain in Shimotsuke.
Wears the Territory
Chagrin, Ohio. Cotton and silk. 200 by 1000 stitches. Cambridge and Boston, Massachusetts.
San Francisco language dot maps
San Francisco is one of the most multilingual places that I have ever lived. I was curious about who spoke what, and where, so I made some maps in the style of The Racial Dot Map to try to show this data. I also wanted to avoid the rendering issues that The Racial Dot Map has, where certain classes of dots are always drawn on top of other classes of dots - in these maps, the rendering order of…
Optical Coherence Tomography
For its importance to human sensation, there is surprisingly little known about the mechanics of motion within the ear. Part of the reason for this is the extremely tiny magnitude of motions within the ear — a sound at the threshold of human hearing creates a vibration on the eardrum the size of a hydrogen atom. From October 2012 until June 2014, I worked with Professor Denny Freeman and his…
General Abstract Nonsense
Briefly, my previously low-maintenance, music-based radio show (on the one and only WMBR Cambridge 88.1 FM) became a project about musically-integrated story sharing. While most of these shows have disappeared into the ether like some a frequency-modulated sand mandala, I recently discovered a handful on an personal digital archeaology excavation. April 21, 2014 Listen. I'm quite proud of all of…
Transdomain Feedback
A project in Max/MSP for Music Hack Day Boston with Drew Shapiro. Feedback and control loops frequently cross multiple domains — mechanical and electrical, discrete and continuous, and software and hardware. When used as an artistic device however, this is less common. The feedback is frequently electrical and acoustic, but rarely is video introduced into the loop. For this project, we…
Linear lens arrays
N.B. This project was inspired by, extends, and makes use of some Javascript written by my friend, Joshua Horowitz. A conventional camera focuses all light rays emitted from an object to the same point in the image. In contrast, a lightfield image contains both the location and angle of incident light rays. Much has been written about light field imaging, but to introduce this project, it suffices…
Miscellaneous academic projects
Recursive Augmented Reality Image Processing System 6.111 (FPGA Laboratory) final project, with José Cruz Serralés. Abstract: We have implemented an augmented reality system that can overlay a digital image on a video stream of a real world environment. We read NTSC video data from a video camera and store it in external ZBT memory. A picture frame with colored markers on the corners…
Protei
Protei was an open source sailboat developed with a diverse team of artists and engineers at the V2_ Institute for the Unstable Media. After a month-long collaborative rapid prototypign and design process, this Protei prototype was developed with a unique flexible hull and a novel actuator design, with the intent of tugging a long, oil absorbent tail through small oil spills. I was also personally…
Squarecave
In 2009, I built the Squarecave, an analog synthesizer and sequencer. It uses digital CMOS ICs to generate a sequence of oscillations of varying pitch and volume, and then pipes the result through analog filters (lo-pass, hi-pass, band-pass). If I built this again now, there are so many things that I would change, but I still think it sounds great — maybe someday, I'll build version 2. (It…
Pair Garments
The extra-long-sleeved twonic. A product of the San Francisco Stupid Shit No One Needs and Terrible Ideas Hackathon, of which I was a co-organizer.
What I Ate
The room is filled with ancient dates, Where I've been and what I ate. Before I'm asked to throw them out, I play with every little doubt. An attempt at tracking correlation between geography and happiness. Q: So, how is the happiness variable plotted? A: It isn't. Q: Isn't happiness an important part of correlating happiness and location? Why was it excluded? A: It was difficult to collect enough…