What's "pixel shift motion correction function"?

odyseuss · 02-24-2016, 12:31 PM

I was about to start a new thread of RRS + Motion Correction when I saw this

Okay, a Japanese Photography magazine recently gave a preview of the motion correction function.
Comparisons on the left hand side (top to bottom): RRS + Motion Correction, RRS without Motion Correction, No RRS.
Sorry for small pictures as they are screenshots. It appears that when Motion Correction works, it is like a charm.
Really looking forward to K-1's arrival and its real world tests!

Source:
???????? K-1 ?????-PFC-Pentax Fans Club

Attached Images

jimr-pdx · 02-26-2016, 07:09 PM

Originally posted by colonel00

I'm curious if this is a software thing that could be implemented into the K-3 II at some point or is that pretty much out of the question?

The K-1 is the first camera with the K-s2 'Clarity' function and the K-3ii pixel-shift capability. It may be that those two parts are chatting with each other to enable the PixShift improvement, in which case it would be a big item to implement in other cameras. Still possible though, I dare to think.. ?

normhead · 02-26-2016, 07:30 PM

Originally posted by Dave L

Sounds useful but it may still require tripod use.

If you really really want an image, you use a tripod. If it doesn't matter whether you get it or not then you don't. (if you can't use a tripod but you really want the image you shoot a 10 shot burst and hope one of them turns out good. ) I would only use pixel shift if it was an image I really , really wanted.

souless · 02-26-2016, 09:10 PM

Originally posted by Rondec

I think Monochrome is right. Basically this will automatically get rid of artifacts from things moving in the frame by using the first frame on the moving items and pixel shift the rest. I think this is more of a software solving of the initial artifact problem and still means that the best results will come from someone using a tripod on a relatively still day -- but it also means that you can use it on moving water, for example, without all sorts of weird artifacts showing up.

Quote:

* The movement may not be sufficiently corrected when the subject is moving in certain directions and/or patterns. This function does not guarantee that the movement will be properly corrected for all subjects.

as stated in the Ricoh's webpages, this doesn't eliminate all the unwanted artifacts from moving things, it only reduces it.

JPT · 02-26-2016, 10:10 PM - **1 Like**

I've just got done at CP+, and had about 15 minutes with a K-1 and Ricoh rep.

The motion correction works by taking the four shots and replacing only the regions of the image with motion artifacts with the single shot image. I was able to test this on a handheld image of the edition space at 1/250. The motion correction worked to freeze the dozens of people walking past. I found some remaining artifacts on a guy's jacket in one shot. Taking the same shot without the motion correction was a complete mess.

I asked the rep about using pixel shift for handheld shots and he said you just have to be a bit careful of your shutter speed. What surprised me was that using pixel shift does not prevent the SR function from working. Both functions can work simultaneously. That greatly increases the occasions that you could take advantage of it.

jimr-pdx · 02-26-2016, 10:16 PM

Darn those engineers, they seem to keep removing every objection to owning a K-1 other than the financial discussion with a marginally-interested spouse!

**Oakland Rob** · 02-27-2016, 09:55 AM

Originally posted by JPT

I've just got done at CP+, and had about 15 minutes with a K-1 and Ricoh rep.

The motion correction works by taking the four shots and replacing only the regions of the image with motion artifacts with the single shot image. I was able to test this on a handheld image of the edition space at 1/250. The motion correction worked to freeze the dozens of people walking past. I found some remaining artifacts on a guy's jacket in one shot. Taking the same shot without the motion correction was a complete mess.

I asked the rep about using pixel shift for handheld shots and he said you just have to be a bit careful of your shutter speed. What surprised me was that using pixel shift does not prevent the SR function from working. Both functions can work simultaneously. That greatly increases the occasions that you could take advantage of it.

Cool...SR and PS.

Can one adjust any of the parameters on motion compensation? Any other details?

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02-24-2016, 12:31 PM	#31
odyseuss Senior Member Join Date: Aug 2012 Location: California Posts: 299	I was about to start a new thread of RRS + Motion Correction when I saw this Okay, a Japanese Photography magazine recently gave a preview of the motion correction function. Comparisons on the left hand side (top to bottom): RRS + Motion Correction, RRS without Motion Correction, No RRS. Sorry for small pictures as they are screenshots. It appears that when Motion Correction works, it is like a charm. Really looking forward to K-1's arrival and its real world tests! Source: ???????? K-1 ?????-PFC-Pentax Fans Club Attached Images

02-26-2016, 07:09 PM	#32
jimr-pdx Pentaxian Join Date: May 2010 Location: now 1 hour north of PDX Photos: Gallery \| Albums Posts: 3,897	Originally posted by colonel00 I'm curious if this is a software thing that could be implemented into the K-3 II at some point or is that pretty much out of the question? The K-1 is the first camera with the K-s2 'Clarity' function and the K-3ii pixel-shift capability. It may be that those two parts are chatting with each other to enable the PixShift improvement, in which case it would be a big item to implement in other cameras. Still possible though, I dare to think.. ?

02-26-2016, 07:30 PM	#33
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by Dave L Sounds useful but it may still require tripod use. If you really really want an image, you use a tripod. If it doesn't matter whether you get it or not then you don't. (if you can't use a tripod but you really want the image you shoot a 10 shot burst and hope one of them turns out good. ) I would only use pixel shift if it was an image I really , really wanted.

02-26-2016, 09:10 PM	#34
souless Senior Member Join Date: Feb 2010 Location: Taipei Posts: 110	Originally posted by Rondec I think Monochrome is right. Basically this will automatically get rid of artifacts from things moving in the frame by using the first frame on the moving items and pixel shift the rest. I think this is more of a software solving of the initial artifact problem and still means that the best results will come from someone using a tripod on a relatively still day -- but it also means that you can use it on moving water, for example, without all sorts of weird artifacts showing up. Quote: * The movement may not be sufficiently corrected when the subject is moving in certain directions and/or patterns. This function does not guarantee that the movement will be properly corrected for all subjects. as stated in the Ricoh's webpages, this doesn't eliminate all the unwanted artifacts from moving things, it only reduces it.

02-26-2016, 10:10 PM - 1 Like	#35
JPT Pentaxian Join Date: Jan 2012 Location: Tokyo Photos: Gallery Posts: 2,821	I've just got done at CP+, and had about 15 minutes with a K-1 and Ricoh rep. The motion correction works by taking the four shots and replacing only the regions of the image with motion artifacts with the single shot image. I was able to test this on a handheld image of the edition space at 1/250. The motion correction worked to freeze the dozens of people walking past. I found some remaining artifacts on a guy's jacket in one shot. Taking the same shot without the motion correction was a complete mess. I asked the rep about using pixel shift for handheld shots and he said you just have to be a bit careful of your shutter speed. What surprised me was that using pixel shift does not prevent the SR function from working. Both functions can work simultaneously. That greatly increases the occasions that you could take advantage of it.

02-26-2016, 10:16 PM	#36
jimr-pdx Pentaxian Join Date: May 2010 Location: now 1 hour north of PDX Photos: Gallery \| Albums Posts: 3,897	Darn those engineers, they seem to keep removing every objection to owning a K-1 other than the financial discussion with a marginally-interested spouse!

02-27-2016, 09:55 AM	#37
Oakland Rob Loyal Site Supporter Join Date: Apr 2015 Location: Bay Area California Photos: Gallery \| Albums Posts: 798	Originally posted by JPT I've just got done at CP+, and had about 15 minutes with a K-1 and Ricoh rep. The motion correction works by taking the four shots and replacing only the regions of the image with motion artifacts with the single shot image. I was able to test this on a handheld image of the edition space at 1/250. The motion correction worked to freeze the dozens of people walking past. I found some remaining artifacts on a guy's jacket in one shot. Taking the same shot without the motion correction was a complete mess. I asked the rep about using pixel shift for handheld shots and he said you just have to be a bit careful of your shutter speed. What surprised me was that using pixel shift does not prevent the SR function from working. Both functions can work simultaneously. That greatly increases the occasions that you could take advantage of it. Cool...SR and PS. Can one adjust any of the parameters on motion compensation? Any other details?