(From left) Justin Temmel

Creative use of bike rim, LEDs sets the world aglow

Camosun students create novel holographic-like images

A team of Camosun College students used a bicycle tire rim, 112 LED lights and their knowledge of a visual phenomenon to create a unique final project for their electronics and computer engineering technology diploma program.

The group – made up of students David Spinks, Matt Tarasoff and Justin Temmel – attached the lights along the outside of the rim, hooked it up to a motor to make it spin, and programmed the lights to represent a string of pixels in a photo. When the rim spins fast enough, you can see a bright, holographic-looking globe turning in front of you.

“We’re simulating a fully functioning display in spherical formation,” Tarasoff said last Thursday during Capstone 2012, the event where students in the program showcase their final projects.

He says he and his fellow group members took advantage of a trick the eye plays called persistence of vision.

While the eye “refreshes” multiple times per second, the brain holds on to the previous image, burning it in your vision for a fraction of a second longer. Persistence of vision creates the appearance of fluidity and continuity from one image to the next.

By spinning the bike rim fast enough, previously illuminated parts of the world map stay in your retinas temporarily, creating the illusion of seeing a full globe.

“With 112 pixels (made of LED lights) rotated at a faster rate than the human eye refreshes, we can simulate thousands of pixels by just replacing the image before the eye believes it even left,” Tarasoff said.

A dozen projects were on display at Capstone, highlighting two years of intensive schooling for students in both the electronics and computer systems technology programs.

“It’s a way of putting everything they’ve learned together and coming up with a solution,” said Alan Duncan, chair of Camosun’s electronics and computer engineering technology department. “It’s sort of simulating what they’ll do in the work world, where they’ve got a problem, they try to solve it, and come up with a solution.”

Among the other projects on display were a smartphone-controlled SLR camera, an iPhone app that helps monitor a person’s safety, and improvements to the mobile-friendliness of the District of Saanich’s website.

Tarasoff says his team’s POV Globe (persistence of vision globe) has potential in such areas as advertising. “It can project almost any image you want.”

While graduation is just around the corner for the trio, and they’ll likely go off on different career paths, they say they’d like to improve upon their current POV Globe – given that they’ve invested hundreds of hours and dollars on it – and see where that takes them.

For more information on either of the Camosun programs, visit camosun.ca/learn/programs/engineering-tech.html.

kslavin@saanichnews.com

 

Just Posted

Neighbour details hearing ‘thuds’ the day girls found dead in Oak Bay

Jury at double-murder trial hears from Andrew Berry’s neighbour

Repatriation efforts work to heal and connect through history: Royal BC Museum

Victoria museum’s efforts bolstered by B.C. repatriation grant

Prime Minister Justin Trudeau to make public transit announcement in Victoria on Thursday

Trudeau is speaking at a campaign countdown event in downtown Victoria

Afternoon crashes tangle Wednesday traffic in Victoria

Victoria Police were kept busy with a pair of rush hour crashes… Continue reading

Swastikas appear on downtown Victoria bus shelters

VicPD says graffiti has increased significantly in last six months

VIDEO: Sparrows raise their chicks in Cadboro Bay deck planter

Jill Yoneda captured 11 days up close with tiny Junco sparrows

Greater Victoria wanted list for the week of July 16

Greater Victoria Crime Stoppers is seeking the public’s help in locating the… Continue reading

Olympic softball qualifier gets $150K boost from provincial government

2019 Americas Qualifier to be held in Surrey from Aug. 25-Sept. 1

Gas price inquiry questions Trans Mountain capacity, company denies collusion

The first of up to four days of oral hearings in the inquiry continue in Vancouver

‘Benzos’ and fentanyl a deadly cocktail causing a growing concern on B.C. streets

Overdoses caused by benzodiazepines can’t be reversed with opioid-overdose antidote naloxone

Chinook retention begins on North Island, but amid new size limit

DFO calls measures ‘difficult but necessary’ following rockslide on Fraser River

Will you be celebrating national hotdog day with any of these crazy flavours?

The popularity of hotdogs spans generations, cultures

Former home of accused Penticton shooter vandalized

Ex-wife of man who is accused of murdering four people had her house vandalized

Survivor of near-drowning in B.C. lake viewing life through new eyes

“If I died that day, the baby wouldn’t know his dad,” said 31-year-old Mariano Santander-Melo.

Most Read