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Face Recognition
Oct 13, 2021 21:51:38   #
gpc
 
Do you use it?

I prefer to choose the focal point.

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Oct 13, 2021 21:57:10   #
mwsilvers Loc: Central New Jersey
 
What if your subject is moving around alot? How do you maintain focus on their eyes? That is the purpose of a face recognition feature. It is not about shooting a static subject.

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Oct 13, 2021 23:32:50   #
Stardust Loc: Central Illinois
 
I do while traveling, when shooting more than one person in the shot with limited time while touring some site.

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Oct 14, 2021 05:38:53   #
Grahame Loc: Fiji
 
gpc wrote:
Do you use it?

I prefer to choose the focal point.


It is a function I have on my Z6 and I've only tested it out with an almost static face and me moving around and it certainly followed well.

Prior to Covid I regularly shot marathons and road races and my normal way of focusing (D800/Z6) was to set the focus point position based upon where I anticipated the face/eye would be with my planned framing. This worked well for me but at times as the subject gets closer there's a need to move the focus point as I re-frame.

I have been wondering how successful face or eye recognition would be in these situations, where runners are coming towards me, as it would allow full concentration on framing without the need to be moving the focus point as well. I often like to shoot near wide open to isolate the subject.

From what I suspect there will be drawbacks and that will be the time it takes to re-position/select the intended subject 'if' it has lost track or selected another subject. Fortunately sports are just restarting where I am so hopefully I'll give is a go in the next few weeks.

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Oct 14, 2021 07:50:18   #
rmalarz Loc: Tempe, Arizona
 
Only personally.
--Bob
gpc wrote:
Do you use it?

I prefer to choose the focal point.

Reply
Oct 14, 2021 07:53:06   #
dpullum Loc: Tampa Florida
 
My Panasonic TZ100 automatically focuses on faces, especially in multi-focus mode. Truly, AI does wondrous things, but may in the future or even now go a step too far. Facial recognition is used by law enforcement. "In June 2021, GAO reported the results of its survey of 42 federal agencies that employ law enforcement officers about their use of facial recognition [AI] technology. Twenty reported owning systems with the technology or using systems owned by other entities, such as state, local, and non-government entities" Send your friend's portrait to the FBI and they will tell you the past criminal activity or may arrest your friend for crimes or future crimes... remember the movie "Minority Report" ... "In a future where a special police unit is able to arrest murderers before they commit their crimes, an officer from that unit is himself accused of a future murder."
https://www.gao.gov/products/gao-21-105309

Be aware that while your camera is recognizing your friend's face it can access their mental health!! What !!??
"Mental health disorders are also amorphous things, with overlapping symptoms among different diagnoses. But by combining the neuroimaging of the fMRI with a trove of data, a machine learning algorithm may be able to learn how to diagnose disorders with speed and accuracy. " Machine Learning Algorithm is a polite way of saying AI. Will your camera EXIF include a line diagnosing the portrait subject's Schizophrenia, Depression, or Sociopath tendencies?
https://www.theverge.com/2019/1/28/18197253/ai-mental-illness-artificial-intelligence-science-neuroimaging-mri
https://www.science.org/doi/10.1126/science.1156902

"For years, Tesla CEO Elon Musk warned people about the dangers of AI-powered robots, even predicting “scary outcomes” like in “The Terminator.” Will your Apple iPhone automatically report your [criminal?] friend to the authorities based on facial recognition? "The Google Photos face recognition system is not perfect, but it does make your life a little easier. It scans and identifies the people on your photos and sends each photo to a specific folder reserved for each person."
Beware, the Photophone has a mind of its own!!!
https://www.alphr.com/how-to-fix-face-recognition-in-google-photos/
https://www.cnbc.com/2021/08/24/elon-musk-warned-of-ai-apocalypsenow-hes-building-a-tesla-robot.html

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Oct 17, 2021 09:28:41   #
topcat Loc: Alameda, CA
 
I think that it works good. I have no problems with it.

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