Canadian airports are still using the so-called naked full body scan images being removed from airports in the United States because the three-dimensional images are considered too revealing.

But that could eventually change, said Canadian Air Transport Security Authority (CATSA) spokesman Mathieu Larocque.

CATSA is currently testing automated target recognition software on the scanners, he said.

"It essentially generates just a stick man image … that will highlight an area of the body that could need more inspection, like the ankle, for example, or the elbow," said Larocque, who is based in Ottawa.

"We don’t have a specific timeline for potential deployment, but this is something that we’re looking at," he said.

There are 51 scanners at 18 airports across Canada, including one at the Greater Moncton International Airport.

Margot Ward, who was travelling between Moncton and Toronto on Monday, described the full body scans as "scary."

"I don't think I'd want it, no," she said.

U.S. dropping 3D scans in June

The U.S. Transportation Security Administration announced last week its X-ray scanners will be removed from airports this summer because the company that makes them can't resolve privacy concerns raised by the 3D images.

U.S. Congress had ordered that the scanners either produce a more generic image or be removed by June. The manufacturer, Rapiscan, acknowledged it wouldn't be able to meet the deadline.

The U.S. will continue to use another type of body scanner, which uses millimetre wave technology instead of X-ray technology.

The scanners being used at airports across Canada also use millimetre wave technology, said Larocque.

But the U.S. has applied the automated target recognition software to the scanners, which produces a generic outline of the passenger instead of the 3D image, he said.

"In Canada, we haven't had these types of [privacy] concerns," said Larocque.

Passengers who are randomly selected for secondary screening are always given the choice between a full body scan or a physical search, he said.

"We’ve had a satisfaction rate for the full body scanner that is pretty high. A lot of passengers in our customer satisfaction survey have indicated that they’re quite comfortable with the technology."

Still, the automatic target recognition software is being looked at, said Larocque.

"It is a commitment that we made when we unveiled these machines that we’d continue to look at other ways to ensure that the perception of the privacy of passengers is kept and just generally look at new technologies that are improving the delivery of service, including at the full body scanner level, and that’s what we’re doing," he said.

The machines, which can scan through clothing, allow a screening officer to see whether someone is carrying plastic explosives or other dangerous items.

They were installed at Canadian airports about three years ago to comply with new U.S. security protocols, implemented after a man snuck explosives onto a flight originating in Nigeria and bound for Detroit on Christmas day in 2009.

In Canada, the screening officer examines the images from a separate room and does not have a direct view of the traveller before, during or after the screening process.

The officer receives no personal information that could associate the image to the particular traveller, according to the CATSA website.

To further protect traveller privacy, the images are deleted after they are viewed, the website states.

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  • Ashley Yang poses for a photo at Los Angeles International Airport, LAX on Thursday, Aug. 4, 2011, in Los Angeles. Yang, a transgender woman, was <a href="http://www.huffingtonpost.com/2011/08/04/tsa-transgender-training-_n_918838.html" target="_hplink">fired from her Transportation Security Administration</a>, TSA passenger screener job at LAX for using the women's room. She recently received a five-figure settlement, back pay and mandatory transgender sensitivity for TSA managers at the LAX airport. (AP Photo/Damian Dovarganes)

  • After a woman was <a href="http://www.huffingtonpost.com/2011/06/02/tsa-molested-me-woman-scr_n_870583.html" target="_hplink">allegedly sexually harassed </a>by TSA agents at Sky Harbor International in Phoenix, AZ, her son documented the aftermath as the TSA, Southwest Airlines and Phoenix Police threaten him with arrest for filming the ordeal. Officials seem more concerned with the video than with the woman brought to tears at the security checkpoint. Video courtesy of YouTube.com/rynomaz111

  • Former Defense Secretary Donald Rumsfeld <a href="http://www.huffingtonpost.com/2011/07/14/donald-rumsfeld-patted-do_n_899348.html" target="_hplink">received a patdown</a> while traveling through Chicago's O'Hare airport in July. (AP Photo/Dennis Cook, File)

  • In July 2011, a 61-year-old Denver woman named <a href="http://www.huffingtonpost.com/2011/07/17/yukari-mihamae-61yearold-_n_900969.html?ref=tsa" target="_hplink">Yukari Mihamae</a> was accused of groping a TSA agent. People rallied around her, even creating a <a href="http://www.facebook.com/pages/Acquit-Yukari-Mihamae/193771357344518" target="_hplink">Facebook page</a> in support of her acquittal. Associated Press

  • Also in July 2011, a <a href="http://news.travel.aol.com/2011/07/15/marian-paterson-94-year-old-women-gets-tsa-patdown/" target="_hplink">94-year-old woman named Marian Paterson</a> was patted down while standing. At the time, Paterson told ABC News she didn't understand why "of all people in America, why they'd pick out some little old lady." ABC News

  • In July 2011,<a href="http://news.travel.aol.com/2011/07/25/thomas-sawyer-cancer-survivor-gets-soaked-by-his-own-urine-aga/" target="_hplink"> former cancer patient Thomas Sawyer</a> was soaked by his own urine when his urostomy bag was burst by a TSA inspector during a patdown. Sadly, this was the <a href="http://www.gadling.com/2010/11/20/tsa-pees-on-tom-sawyer/" target="_hplink">second time this had happened to him</a>. NBC

  • Ron Paul has come out firmly against the <a href="http://www.huffingtonpost.com/2011/07/05/ron-paul-tsa-_n_890511.html" target="_hplink">TSA saying it should be abolished</a>.

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  • Senate Homeland Security and Governmental Affairs Committee member Sen. Rand Paul, R-Ky. shows a picture he says is of a young girl being searched by the TSA, during the committee's hearing to examine ongoing transportation security threats, Wednesday, June 22, 2011, on Capitol Hill in Washington. (AP Photo/Jacquelyn Martin)

  • In this Saturday, May 7, 2011 handout photo, a baby boy, held by his mother, is <a href="http://www.huffingtonpost.com/2011/05/11/baby-receives-pat-down-at_n_860436.html" target="_hplink">frisked by TSA agents</a> at Kansas City International Airport in Kansas City, Mo. Federal officials insisted Wednesday that screeners at Kansas City International Airport were just doing their jobs when they frisked the baby, an incident that gained worldwide attention after a pastor posted a cellphone picture of the pat-down on Twitter. (AP Photo)

  • Former <a href="http://www.huffingtonpost.com/2011/04/28/susie-castillos-tsa-rant-_n_855038.html" target="_hplink">Ms USA Susie Castillo filmed her breakdown</a> at the Dallas airport after she felt she was inappropriately touched by a TSA agent.

  • Selena Drexel, of Bowling Green, Ky., sits in front of her home computer Wednesday, April 13, 2011, with a video showing her <a href="http://www.huffingtonpost.com/2011/04/13/tsa-pats-down-6year-old-g_n_848626.html" target="_hplink">6-year-old daughter Anna getting frisked</a> at the New Orleans airport earlier this month by the TSA officials. (AP Photo/Joe Imel)

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  • Former "Baywatch" actress<a href="http://www.huffingtonpost.com/2010/12/08/donna-derrico-baywatch-st_n_793909.html" target="_hplink"> Donna D'Errico said that a TSA agent "singled her out"</a> for a full-body scan at LAX. (Photo by Frederick M. Brown/Getty Images)

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  • Paul Gambill, of Tempe, protests curbside at Sky Harbor International Airport Wednesday, Nov. 24, 2010 in Phoenix. Gambill was participating in the National Opt Out Day protest against the use of body-scanning technology by the TSA.(AP Photo/Matt York)

  • My friend Jimmy successfully navigated a TSA security checkpoint in a <a href="http://www.huffingtonpost.com/2010/11/24/speedo-tsa-_n_788137.html" target="_hplink">speedo swimsuit</a> at the Salt Lake City International Airport on Tuesday, November 23, 2010 with the words, 'SCREW BIG SIS' written on his back. Why the speedo?

  • Activist Lori Lamb distributes stickers to travelers to protest against TSA's new security procedures at Los Angeles International Airport, Wednesday, Nov. 24, 2010. Holiday travelers dismayed by airport body scans <a href="http://www.huffingtonpost.com/2010/11/24/opt-out-day-how-_n_788002.html" target="_hplink">planned protests</a> at bustling airports, while the head of the nation's transport security agency urged passengers to comply with searches to reduce the possibility of delays on one of the busiest travel days of the year. (AP Photo/Jae C. Hong)

  • A Taiwanese animation company took on the TSA's practices in a <a href="http://www.huffingtonpost.com/2010/11/17/taiwanese-tsa-cartoon_n_784709.html?ref=tsa" target="_hplink">holiday-themed mocking </a>last year. <em> <a href="http://www.youtube.com/watch?v=TBL3ux1o0tM&feature=player_embedded" target="_hplink">NMA World Edition</a></em>

  • Whoopi Goldberg has called<a href="http://www.huffingtonpost.com/2010/11/22/whoopi-tsa-pat-downs_n_786756.html" target="_hplink"> TSA's patdowns "necessary</a>." (AP Photo/Jeff Christensen)