Interesting info, thanks. I could ask the guys in iPhone camera engineering who wrote the panorama function, but I'm sure it's proprietary info. ];-)
This panorama is a maximum capture. I kept the camera very level so there's little trimming: https://dl.dropboxusercontent.com/u/25268645/iom2013/130406douglasharborIoM.jpg The original is 10800x2332 pixels (about 25 Mpixels) in size. G On Aug 14, 2013, at 3:16 PM, steve harley <[email protected]> wrote: > on 2013-08-13 21:28 Godfrey DiGiorgi wrote >> They're not "stitching a video" with the iPhone Panorama feature, the number >> of vertical pixels is wrong for that. > > right, that's why Larry was thinking in terms of using "full-res" video, a > full-resolution camera image (8mp for iPhone 5) for each frame of video, to > auto-stitch panoramas; that's a brute-force concept, and not what the iPhone > does; i guessed that the iPhone "watches" its video feed to detect when to > take a full res shot for the next segment of the panorama, but it turns out > it's a more subtle process; interpreting from these two sources: > > <http://www.anandtech.com/show/6330/the-iphone-5-review/16> > > <http://www.patentlyapple.com/patently-apple/2012/11/apples-cool-iphone-5-panorama-app-revealed-in-5-patents.html> > > the phone uses it's gyroscope to know where it's pointed relative to the > initial frame, and then at the appropriate moments takes data from just a > central strip of the sensor, while also producing a continuous live view > image (the iPhone 5 also introduced the capacity to take full-res still shots > while also capturing video) > > while the iPhone 5 sensor is 3264x2448 pixels, various reports put the actual > height (assuming "normal" orientation) of a finished panorama in the > mid-to-low 2000s, so it seems to discard some info from the top & bottom of > the sensor to allow for imperfect aim > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
