San Jose Is Training AI to Identify Homeless Camps

Images captured on cameras mounted on a municipal vehicle are being used to train a private technology companies’ AI algorithm to detect tents and signs of habitation in vehicles.

2 minute read

April 2, 2024, 11:00 AM PDT

By Mary Hammon @marykhammon


Homeless Camp

pisaphotography / Shutterstock

The Guardian recently reported that San Jose is conducting what experts believe to be a first-of-its kind experiment to train AI to recognize tents and cars with people living inside them. Since last December, city employees have been driving periodically through the city’s district 10, filming footage of streets and public spaces with a camera mounted on a municipal vehicle. That footage is then fed into computer vision software and used to train algorithms for a handful of technology companies’ algorithms to detect “unwanted objects.”

“Some of the capabilities the pilot project is pursuing — such as identifying potholes and cars parked in bus lanes — are already in place in other cities. But San Jose’s foray into automated surveillance of homelessness is the first of its kind in the country, according to city officials and national housing advocates,” writes Guardian reporter Todd Feathers.

The pilot won't likely impact just San Jose, Feathers reports: "San Jose’s position as a national leader on government procurement of technology means that its experiment with surveilling encampments could influence whether and how other cities adopt similar detection systems.” It could be of particular interest to the increasing number of local governments criminalizing activities that homeless people have no choice but to undertake, as well as Florida municipalities looking to enforce that state’s new ban on outdoor sleeping.

The Guardian article digs into the finer details of how the AI algorithms are being trained to distinguish between, for example, an RV that’s simply parked and one that’s being lived in, as well as privacy issues for people’s faces and license plate numbers that are captured. Though the pilot’s data use policy says the footage can’t be used for law enforcement purposes, police can request the footage. And, in light of San Jose’s recent crackdowns on homeless encampments but already overwhelmed shelters that leave the unhoused people nowhere to go, housing advocates are concerned the technology will be used to punish the city’s unhoused residents. A city employee told the Guardian that one response to the new technology’s findings might be to send outreach workers to a single tent before it can grow into an encampment; however, the San Jose housing department and non-profits providing aid to unhoused people told the Guardian they were not involved in the pilot.

Monday, March 25, 2024 in The Guardian

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

45 minutes ago - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

1 hour ago - Streetsblog USA

Aerial view of flooding during Hurricane Helene in North Carolina.

‘Quality Work, Fast’: NC Gears up for Homebuilding After Helene, Trying to Avoid Past Pitfalls

The state will field bids to demolish, repair and rebuild homes in the mountains. After struggles in eastern NC, officials aim to chart a different course.

2 hours ago - NC Newsline

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.