Pix4D report and results may be of interest
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Patrick Coyle
Aug 4, 2012, 6:58:18 PM8/4/12
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Pix4D results may be of interest. A file with images of statistics and metrics they get from their auto processing is attached (but pages are in reverse order). Also attached is pdf of preview of result if you purchase. I used one of my three free trials.
The actual result when looked at as geotiff or as kml is pretty ragged. It also only did a subset of the region covered by all the images.
The set of images I used for Pix4D were also processed (as separate groups of images) on Hypr3D on, with results shown at the top of:
http://www.hypr3d.com/users/4ec3f8057d03db0001000031
On this flight, the Picavet slipped and the rig tilted so the images were pretty oblique. I was interested to see how Pix4D does with them. The images are geotagged but don't have the iPhone yaw, pitch and roll info I captured in a separate file. As description at:
http://www.hypr3d.com/models/500783df3d50040002000004 indicates;
In this session, flew: - Tyvek Delta made by Mathew Lippincott - Al frame with: - single Canon A1200 in rubber band triggered continuous mode - iPhone running GPS-Trk capturing gps track points at one second intervals in background - Sensor Data in foreground. Issues with frame tilted slightly in Picavet rig, so images are skewed. (also second A1200 wouldn't start up, so didn't fly it. The Al frame is patterned after C. Fastie's for CHDK remote triggered IR/Visible shooting.) Photos were geotagged and KMZ exported with myTracks on Mac. Max recorded gps elevation was 280m with ground at ~134m for altitude of ~146m or ~480ft. Have not yet exploited the iPhone orientation data captured by Sensor Data app. Companion video is at: http://youtu.be/VAJGvOFF-Yc
The actual result when looked at as geotiff or as kml is pretty ragged. It also only did a subset of the region covered by all the images.
The set of images I used for Pix4D were also processed (as separate groups of images) on Hypr3D on, with results shown at the top of:
http://www.hypr3d.com/users/4ec3f8057d03db0001000031
On this flight, the Picavet slipped and the rig tilted so the images were pretty oblique. I was interested to see how Pix4D does with them. The images are geotagged but don't have the iPhone yaw, pitch and roll info I captured in a separate file. As description at:
http://www.hypr3d.com/models/500783df3d50040002000004 indicates;
In this session, flew: - Tyvek Delta made by Mathew Lippincott - Al frame with: - single Canon A1200 in rubber band triggered continuous mode - iPhone running GPS-Trk capturing gps track points at one second intervals in background - Sensor Data in foreground. Issues with frame tilted slightly in Picavet rig, so images are skewed. (also second A1200 wouldn't start up, so didn't fly it. The Al frame is patterned after C. Fastie's for CHDK remote triggered IR/Visible shooting.) Photos were geotagged and KMZ exported with myTracks on Mac. Max recorded gps elevation was 280m with ground at ~134m for altitude of ~146m or ~480ft. Have not yet exploited the iPhone orientation data captured by Sensor Data app. Companion video is at: http://youtu.be/VAJGvOFF-Yc
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