Connect with us

California

Sharks are congregating at a California beach. AI is trying to keep swimmers safe | CNN

Published

on

Sharks are congregating at a California beach. AI is trying to keep swimmers safe | CNN




CNN
 — 

On summer mornings, local kids like to gather at Padaro Beach in California to learn to surf in gentle whitewater waves. A few years ago, the beach also became a popular hangout for juvenile great white sharks.

That led to the launch of SharkEye, an initiative at the University of California Santa Barbara’s Benioff Ocean Science Laboratory (BOSL), which uses drones to monitor what’s happening beneath the waves.

If a shark is spotted, SharkEye sends a text to the 80-or-so people who have signed up for alerts, including local lifeguards, surf shop owners, and the parents of children who take lessons.

Advertisement

In recent years, other initiatives have seen officials and lifeguards from New York to Sydney using drones to keep beachgoers safe, monitoring video streamed from a camera. That requires a pilot to stay focused on a screen, contending with choppy water and glare from the sun, to differentiate sharks from paddleboarders, seals, and undulating kelp strands. One study found that human-monitored drones only detect sharks about 60% of the time.

SharkEye – part research program, part community safety tool – is using the video it collects to analyze shark behavior. It’s also feeding its footage into a computer vision machine learning model – a type of artificial intelligence (AI) technology that enables computers to glean information from images and videos – to train it to detect great white sharks near Padaro Beach, close to the city of Santa Barbara.

“Automating shark detection … can (also) be really helpful for a lot of communities outside of ours here in California,” Neil Nathan, a project scientist with BOSL, who graduated from Stanford University with a master’s degree in environmental studies a few years ago, told CNN.

A rise in the popularity of drones, and the proliferation of social media, may make it seem like sharks are everywhere. It doesn’t help that warming ocean temperatures are pushing sharks into new habitats, and that juvenile great whites, which can grow to about eight to 10 feet long, like to hang out near the shore, making them more visible to beachgoers.

Yet shark attacks are rare. In 2023, 69 people globally were at the receiving end of unprovoked bites – which is in line with the average of 63 annual incidents between 2018 and 2022. Just 10 of them died, according to the Florida Museum of Natural History’s International Shark Attack File.

Advertisement

Although there hasn’t been a fatal attack recorded at Padaro Beach, some community members were concerned when sharks began loitering there.

That’s why SharkEye has been regularly running drone flights to monitor the coastline for about five years, once spotting 15 juvenile great white sharks in a single day.

Early tests indicate that the AI technology is already performing “incredibly well,” detecting most sharks a human can, and sometimes sharks that a human missed, perhaps because it was swimming too deep to spot easily, said Nathan.

This summer, the project began field testing its technology by pitting drone pilots against AI. Its pilot surveys the area and counts the number of sharks she spots. Then SharkEye’s model analyzes the video to see how many sharks it can find.

Today, the community alerts are based on human analysis. If all goes swimmingly, those reports may become AI-assisted – with manual monitoring and checks – by the end of the season, or the start of next summer, said Nathan. In the future, the process may even become totally automated, making it faster and potentially more accurate.

Advertisement

AI and wildlife

AI technologies are being harnessed in myriad ways to mitigate human-wildlife conflict. In India, AI-enabled cameras are alerting villagers when tigers are closing in on their livestock, and in Australia, technology is being used to manage some of its dangerous creatures.

Ripper Corp and academics pioneered what they say are the first shark identification algorithms in the world, which were put to use in drones a few years ago. The latest version of the software is being tested across the Australian state of Queensland, Mexico and the Caribbean to detect sharks and crocodiles.

However, AI is not yet used widely for shark detection. Surf Life Saving New South Wales, which protects dozens of beaches along the state’s coast, including Sydney’s iconic Bondi Beach, uses drones in 50 locations. But a spokesperson told CNN that their drones aren’t currently utilizing AI.

A group from one Australian university that worked on AI-enhanced shark-spotting tools wrote in 2022 that the technology can struggle when encountering conditions that weren’t present in the training data.

SharkEye plans to make its model free and available for researchers to amend or build on, and to create an AI-powered app that’s easy for people like lifeguards and drone hobbyists to run their footage through. That could help keep people safe, but also allow humans to better understand and protect sharks.

Advertisement

Nathan said it remains to be seen how much retraining will be required for SharkEye to expand to other locations. He’s hopeful that if drone pilots fly at the same speed and altitude, they won’t have too many issues elsewhere in California, where the coastline is similar.

Officials in Honolulu said this month that they’re considering launching a drone shark surveillance program, according to local media. If SharkEye’s technology were to be used in places like Hawaii, where tiger sharks are the biggest concern, and the hue of the water differs, more retraining might be necessary. But Nathan said that SharkEye is open to working with other localities to help adapt the model.

“Communities want to have that knowledge and that awareness so it’s easier to more safely share the water with these creatures,” said Nathan. “Sharks are an incredible species that we still are always learning new things about.”



Source link

Advertisement

California

California man who killed estranged wife’s lover while they slept sentenced

Published

on

California man who killed estranged wife’s lover while they slept sentenced


A now 33-year-old Northern California man, who was on the run in Mexico for five nearly five years, has been sentenced for the murder of his estranged wife’s boyfriend while the couple was sleeping in her apartment in 2017.

Arturo Hernandez was 25 when he learned that a man named Anthony Freas was in a relationship with his estranged wife. His calls to her after hearing about the situation went unanswered, according to investigators.

On Nov. 19, livid over the relationship, Hernandez went to the Regency Apartments in the 5900 block of Riza Avenue, where his wife lived. He broke into the apartment where the couple was sleeping, entered her bedroom and stabbed Freas multiple times before fleeing the scene, according to a news release from the Sacramento County District Attorney’s Office.

Anthony Freas was killed while sleeping by his girlfriend’s estranged husband on Nov. 19, 2017. (Justice4Anthony/Facebook)

Officers with the Sacramento Police Department responded to the apartment and found Freas suffering from at least one stab wound to the upper body. They began life-saving measures until paramedics arrived and rushed him to a hospital, where he later died.

Advertisement

Authorities launched a manhunt for Hernandez, who was considered armed and dangerous, The Sacramento Bee reported.

  • California man who killed estranged wife's lover while they slept sentenced
  • California man who killed estranged wife's lover while they slept sentenced

It was later learned that he fled to Mexico, though it is unclear where he had been hiding or with whom.

Hernandez evaded law enforcement until July 2023, when he was arrested by Mexican authorities and FBI agents. He was later extradited back to Sacramento to stand trial.

On March 24, a jury found Hernandez guilty of second-degree murder and found true the allegation that he personally used a weapon during the attack.

More than three months later, on July 10, Judge Alyson Lewis sentenced him to 16 years to life in state prison.

Advertisement



Source link

Continue Reading

California

Northern California hospital runs out of antivenom saving man bitten by rattlesnake

Published

on

Northern California hospital runs out of antivenom saving man bitten by rattlesnake


An Idaho father is recovering at home after a near-fatal encounter with a rattlesnake during a vacation in Northern California that required a hospital’s entire supply of antivenom to keep him alive.





Source link

Advertisement
Continue Reading

California

The fierce competition to get married at California’s most popular public buildings

Published

on

The fierce competition to get married at California’s most popular public buildings


The late-morning sun peeked through a gauzy veil of fog, bright laughter echoing over the giddy whisper of tulle as the brides posed for pictures outside the Santa Barbara County Courthouse.

Moments earlier, Zoë Weber and Jordan Cantor of Hollywood had traded vows above the compound’s famous Sunken Garden. The brief, heartfelt legal ceremony was made sweeter because the date, June 26, was the anniversary of the Supreme Court decision that legalized gay marriage across the U.S. in 2015.

Minutes before that, their officiant, Santa Barbara County Supervisor Roy Lee, had married off Brittney Hua, 27, and Steven Ly, 26. The Arroyo High School sweethearts made their relationship official that same day 11 years ago, an anniversary that matches their San Gabriel Valley area code, 626.

Lee was soon rushing across the lawn to join Carmen Cardenas Ayon and Santiago Martinez, both 28, who’d come up from Compton for the last-minute wedding of their dreams.

Advertisement

The groom, a bus mechanic, was starting his shift around 4:30 am Wednesday morning when he happened to check the courthouse website for cancellations and saw Friday’s open call event.

“He was like ‘We can get married on Friday in Santa Barbara!’” the bride recalled. “And I was like ‘OK, let’s do it!’”

Minshi DeHuff, 35, and Andrew DeHuff, 39, of San Francisco marry at City Hall on June 26.

(Sarahbeth Maney / For The Times)

Advertisement

Less than a decade ago, courthouse weddings were still the purview of camera-shy celebrities, mid-life second marriages and mother-to-be brides. But since the pandemic, their popularity has boomed — transforming certain courthouses and municipal buildings into sought-after locales to tie the knot.

Snagging an appointment to elope has become almost as difficult as scoring Olympics tickets.

In Santa Barbara, marriage appointments open 90 days in advance, with new slots released every hour while the courthouse is open. On a recent weekday, slots in October vanished in less than five minutes.

“They pretty much get picked up as soon as we release them,” said County Clerk Melinda Greene. “We have people from all over the world.”

Advertisement
  • Share via

Advertisement

Here comes the bride — and another, and another and another… 

So-called “micro weddings” have emerged as an industry unto themselves amid the soaring costs of a traditional ceremony. A recent Bank of America analysis pegged the average cost of an American wedding at $36,000 — significantly more expensive than a year of rent at the median price in Los Angeles, or two years of in-state tuition at UC Berkeley.

“A lot of my elopement brides are low-key and private,” said Asha Marshall of So Fetch Photography, who specializes in courthouse ceremonies. “They don’t want to be spending all that money.”

Advertisement

The shift toward boutique legal ceremonies has transformed the marriage business and the municipal buildings where such nuptials take place, turning elopement from a breezy wedding alternative into a formal contact sport.

“It books up so fast, you have to be online at the exact time [of day] you plan on having your appointment,” explained the photographer, whose viral 2024 snaps helped supercharge the Santa Barbara courthouse’s popularity on social media. “A lot of my brides get stressed out.”

A bride poses for wedding pictures on steps with a long veil and dress.

Shuting Zang, 28, is photographed on her wedding day at San Francisco City Hall.

(Sarahbeth Maney / For The Times)

Santa Barbara’s Moorish Revival hall of justice has long been Southern California’s most coveted civil marriage spot. Vice President Kamala Harris and Doug Emhoff took their vows in its storied Mural Room in 2014. Reality TV star Kourtney Kardashian and Blink-182 drummer Travis Barker were wed on the steps outside in 2022.

Advertisement

But officials say demand has exploded in recent years, thanks in part to Pinterest and TikTok.

“We see dozens a day, starting at 8 o’clock in the morning,” said Lee, the county supervisor and officiant for the day, whose office is across the street. “I see them line up right there outside the doors.”

Ly, the newlywed from El Monte, said that in order to secure their spot at the Santa Barbara courthouse, he and his bride were prepared for an experience akin to buying stadium tour tickets.

“Both of us were on two separate computers, each of us trying to copy and paste the details so we could get in early,” he said.

“I let him do the first one,” his wife, Hua, said. “He didn’t get it, so I did the second one and I got it.”

Advertisement

Others, including Amy Rodriguez, were left scrounging for cancellations.

“I decided one night, let me double check if there’s an opening,” the bride said as she waited for her groom-to-be near the front entrance to the courthouse, where wedding parties must pass through a metal detector. “I logged in — it was literally midnight, maybe one o’clock — and got the slot.”

The race to the clerk’s window is not limited to Santa Barbara. Other popular courthouses such as the L.A. County Courthouse in Beverly Hills and the Old County Courthouse in Santa Ana have seen a similar spikes in demand.

But no municipal building in the state compares to San Francisco City Hall, where Marilyn Monroe and Joe DiMaggio tied the knot in 1954.

A couple kisses at City Hall.

Elias Salem, 33, left, and Samuel Tyler, 33, of San Francisco pose after being married at San Francisco City Hall.

(Sarahbeth Maney / For The Times)

Advertisement

Today, the gilded Beaux-Arts building sees as many as 7,000 marriage ceremonies a year. That’s two-thirds again more than its Santa Barbara rival, which does about 4,000, and roughly the same number as take place at the Norwalk headquarters of the Los Angeles County Registrar, a top contender for the country’s busiest wedding venue after New York’s Manhattan Marriage Bureau and the Office of Civil Marriages in Las Vegas.

“Over the last three to four years it’s been really dramatic,” said Cheri Tran, a popular elopement photographer in San Francisco. “When I did my first City Hall elopement six or seven years ago, we were only dodging 20 or 30 people. Now it’s hundreds.”

The TikTok-driven crowds leave many locals in the lurch. Tran nudges her brides toward the Marin County Civic Center, Frank Lloyd Wright’s final public building. Others, like photographer Anna Perlman, encourage “adventure elopements” in Joshua Tree or Big Sur.

Officials, too, have sought creative ways to relieve the pressure. On the last Friday in June, San Francisco and Santa Barbara both opened their books to scores of additional couples, ushering in a brief return to the romance of last-minute marriage.

Advertisement

“There were simultaneously four or five couples trying to take a picture on the staircase,” said newlywed Daniel Tran, 28, who chanced upon one of the extra slots opened for San Francisco’s annual Pride wedding event. “One of our witnesses took a picture, and you could see couples on every floor getting married. It was a little jarring.”

Several brides and grooms stand around a grand staircase.

Newlywed couples wait their turn for photos on the grand staircase during the busiest wedding day of the year at San Francisco City Hall.

(Sarahbeth Maney / For The Times)

A similar scene played out in Santa Barbara, where officials agreed to marry couples without an appointment for “Palindrome Day,” a sought-after anniversary that reads the same backwards and forwards.

“This is the first time we’ve ever done no appointments out here,” Greene said. “We authorized overtime and we’re gonna take short lunches and we’re just gonna get as many as we can through.”

Advertisement

By 11 a.m., the building’s lush courtyard was aflutter with white dresses and mascara-streaked tissues, cameras snapping from every angle as clerks flitted back and forth with marriage licenses.

Some, like the El Monte couple, had planned their nuptials for months. Others, like the pair from Compton, had pulled their ceremony together virtually overnight.

But few had managed an eleventh-hour affair quite as swiftly as Susie Villacis and Gaspar Garcia Jr., who cruised into town around 2 a.m. Friday morning after hunting down an all-inclusive civil ceremony from halfway across the state.

“To be honest, it was last minute — it was yesterday,” the bride said of the decision to marry in Santa Barbara.

With their Catholic wedding in Ecuador looming, the San Francisco couple needed a license and a civil ceremony ASAP.

Advertisement

“We were going to get married at San Francisco City Hall, but the earliest appointment was September,” Villacis said. “This was the only place we could do everything in one go.”

Lee, the county supervisor, was happy to oblige. The black-robed officiant led the pair through their wedding vows, pronouncing them husband and wife as their mothers looked on with tears in their eyes.

Garcia dipped Villacis for a dramatic first kiss. Then the trio posed for a selfie.



Source link

Advertisement
Continue Reading
Advertisement

Trending