"Many years ago Sony introduced something called (IIRC) Smart Zoom. I have old but still kicking butt Sony V1 and in options when Smart Zoom is enabled it works exactly as you described. In max resolution there is no digital zoom and the lower the…"
Barry Kelly's Discussions
No Loss Digital Zoom?
Started this discussion. Last reply by Marooned Oct 21, 2012. 6 Replies 0 Likes
Hi GuysI'm a radio tech that works on land mobile radio, and also have my HAM license. I've got a bit of experience flying a quad rotor (about 9 hours on it of flight time now) and have played…Continue
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Barry Kelly replied to Barry Kelly's discussion No Loss Digital Zoom?"Thanks Stephen, sounds like you're one step ahead of my thinking. It's too bad it wouldn't work then. Optical zoom it is!"
Stephen R Mann replied to Barry Kelly's discussion No Loss Digital Zoom?""If you started with a much higher resolution (4000 ish pixels) you could have a 4x zoom without quality loss."
Most digital cameras don't work that way. When you digital zoom, the camera uses the pixels in the center and…"
Barry Kelly replied to Barry Kelly's discussion No Loss Digital Zoom?"Stepehn, I don't think I described myself correctly.
Digital zoom does have some uses.
Say I start with an HD picture, say a resolution of 1080p, or 1920 x 1080 pixels. Now, say I'm only transmitting 640 x 480. This…"
Stephen R Mann replied to Barry Kelly's discussion No Loss Digital Zoom?"What you want is impossible. Digital Zoom is a consumer gimmick and seriously compromises the image quality. If you start with 640x480 and do a digital zoom in by 50%, then you are taking the pixels in the center 320x240 in the original…"
Luke Olson replied to Barry Kelly's discussion No Loss Digital Zoom?"There really isn't that much resolution to work with, at most you'd get 2.25x zoom (1080/480 = 2.25) which isn't much zoom."
Barry Kelly posted a discussionNo Loss Digital Zoom?
Hi GuysI'm a radio tech that works on land mobile radio, and also have my HAM license. I've got a bit of experience flying a quad rotor (about 9 hours on it of flight time now) and have played around with fixed wing a bit 5 flights with a friends Typhoon 2, and of course a lot of time on an RC simulator. I've got a Skywalker 1.68 in the mail, and am setting up a UAV with a camera on a pan-tilt turret on the bottom, kind like the Desert Hawk.Anyway, I was wondering about zoom-able cameras.…See More
Barry Kelly commented on Chris Anderson's blog post PX4 team does mindblowing mapping and exploration with optical flow board"Wow good job guys. Although when the robots finally take over, and this project is recognized as a vital step in them taking over, I'll retract my "good job"."
Barry Kelly commented on Hooks's blog post Pig hunting with personal UAV"The FLIR has come down in price a lot since then, since the new photon has come out
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- About Me:
- Electronics Engineering Technologist. Works as a Biomedical Engineering Technologist fixing medical equipment.
- Tell us a bit about your UAV interest
- I want to make a FPV plane with a slewable camera. I have two quad copters.
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