maunaloa Posted April 27, 2012 Report Share Posted April 27, 2012 Hi guys! My gang working with a quadrocopter, which equipped with a simple digital camera. It makes 16 mpixel images. We wanted, to test it on an archeological site, to create ortophoto and surface model. We made photos, collected geodetical point datas. We installed the LPS, and wanted to use the photos. BUT, if i want to open the images with lps, and join to the session, i need to setup some thing, for example camera info (lense and other numbers), etc. My images are "raw" images, no croshairs are at the frame, like on the real airphotos. My question is that: have anyone any solution, to use this images with LPS? How can i calculate the camera values for the LPS? This camera is a Sony digital camera, i dont know any parameters, maybe the manufacturer share something, but i think, it isn't so simple. Waiting for replies:) :tongue: :cool: Quote Link to comment Share on other sites More sharing options...
superspack Posted April 27, 2012 Report Share Posted April 27, 2012 Hi, you have got to use the digital camera definition! By using this you do not have to specify the fiducial marks. Instead you have to know the focal distance (found in your photos metadata), the cell size of each pixel (found in the cameras description) and the lens distortion with the PPA or PPS. THose last values probabely you have to calculate by using the lens distortion parameter in the aerotriangulation (block adjustment / or ORMIA which is far better). Quote Link to comment Share on other sites More sharing options...
maunaloa Posted April 28, 2012 Author Report Share Posted April 28, 2012 hi thx mate. I will make a test with it. Anyway, have you any "learn" ppt or pdf, or whatever to LPS? Me and my friend want to read it. Quote Link to comment Share on other sites More sharing options...
superspack Posted April 29, 2012 Report Share Posted April 29, 2012 Sorry, I don´t have any good literature about this topic... Quote Link to comment Share on other sites More sharing options...
maunaloa Posted May 27, 2012 Author Report Share Posted May 27, 2012 Hi! I was busy, so i don't tested the LPs with my quadrocpter-made images. Now i have a bunch of images, and installed LPS. First, that LPS is a cr*p...I made a block file, wanted to import images, but i can't select JPG type,... Thought, let's convert to ecw, and work with that. I imported the ECW files. I collected circa 15 gcp around the images. Now i have two images. I opened the frame editor, to setup camera datas. I don't understand that datas. My friend, who amde the photos, created a camera calibration file, this: --------------------- Status Report Tree Project Name: *** Project has not yet been saved *** Information from most recent processing Last Processing Attempt: Mon Apr 30 14:46:33 2012 PhotoModeler Version: 6.2.2.596 - final,trial Status: successful Processing Options Orientation: off Global Optimization: on Calibration: on (full calibration) Constraints: off Total Error Number of Processing Iterations: 3 Number of Processing Stages: 2 First Error: 8.674 Last Error: 8.656 Precisions / Standard Deviations Camera Calibration Standard Deviations Camera1: DSC-H70 [4.25] Focal Length Value: 4.285611 mm Deviation: Focal: 0.002 mm Xp - principal point x Value: 3.145539 mm Deviation: Xp: 0.001 mm Yp - principal point y Value: 2.362853 mm Deviation: Yp: 0.003 mm Fw - format width Value: 6.239422 mm Deviation: Fw: 9.5e-004 mm Fh - format height Value: 4.680214 mm K1 - radial distortion 1 Value: 3.396e-004 Deviation: K1: 5.2e-005 K2 - radial distortion 2 Value: -5.715e-006 Deviation: K2: 2.8e-006 K3 - radial distortion 3 Value: 0.000e+000 P1 - decentering distortion 1 Value: -2.132e-004 Deviation: P1: 2.5e-005 P2 - decentering distortion 2 Value: 5.369e-004 Deviation: P2: 4.0e-005 Quality Photographs Total Number: 8 Bad Photos: 0 Weak Photos: 0 OK Photos: 8 Number Oriented: 8 Number with inverse camera flags set: 0 Cameras Camera1: DSC-H70 [4.25] Calibration: yes Number of photos using camera: 8 Average Photo Point Coverage: 92% Photo Coverage Number of referenced points outside of the Camera's calibrated coverage: 0 Point Marking Residuals Overall RMS: 1.074 pixels Maximum: 4.953 pixels Point 119 on Photo 7 Minimum: 0.317 pixels Point 20 on Photo 6 Maximum RMS: 2.762 pixels Point 131 Minimum RMS: 0.188 pixels Point 19 Point Tightness Maximum: 0.0033 m Point 46 Minimum: 0.00023 m Point 19 Point Precisions Overall RMS Vector Length: 0.000467 m Maximum Vector Length: 0.000748 m Point 13 Minimum Vector Length: 0.000414 m Point 72 Maximum X: 0.000272 m Maximum Y: 0.000353 m Maximum Z: 0.000611 m Minimum X: 0.000168 m Minimum Y: 0.000169 m Minimum Z: 0.000337 m -------------------- The quadrocopter flight height was cca. 15 m. Anyone can help me, what i need to setup with these calibration datas? I checked the Erdas forum, but i hav'nt found any help..... Olla Quote Link to comment Share on other sites More sharing options...
bpetkovic Posted May 29, 2012 Report Share Posted May 29, 2012 For camera parameters you must calibrate camera. That i learn on my collage its simple but i forget now how to do that if you wish send me mail to ask assistant on my college and i will send you how to do that. Ok I ask my assistant how he did that and he send me this link and say that this is possible in photo modeler and link to tutorials is PhotoModeler Tutorials Little explanation for digital camera you need only focal lenght (in this case it is Value: 4.285611 mm) and principal x and y (in your case Xp - principal point x Value: 3.145539 mm and Yp - principal point y Value: 2.362853 mm) My suggestion is to walk trough digital camera example in LPS help file. If you have some question fell free to ask BR Bojan Quote Link to comment Share on other sites More sharing options...
sanzida Posted June 17, 2012 Report Share Posted June 17, 2012 hi i am a new user pls help me to get some soil erosion hazard modeling in arcgis tutorials :tongue: Quote Link to comment Share on other sites More sharing options...
bpetkovic Posted June 20, 2012 Report Share Posted June 20, 2012 hi i am a new user pls help me to get some soil erosion hazard modeling in arcgis tutorials :tongue: Hey search Esri Press books and in this books you will haw your answer - another suggestion is to search trough google or join to esri forum and post your question BR Bojan Quote Link to comment Share on other sites More sharing options...
Green_wing Posted September 23, 2012 Report Share Posted September 23, 2012 Hi, I use images from a fixed wing drone, we use Microsoft ice for mosaic and agisoft for 3d model. In agisof you can do camera calibration and do ortophoto, work very good. Try to find this book! will answer all your questions. James S. Aber, Irene Marzolff, Johannes Ries, "Small-Format Aerial Photography: Principles, techniques and geoscience applications Quote Link to comment Share on other sites More sharing options...
umvasya Posted December 11, 2014 Report Share Posted December 11, 2014 Hi, I use images from a fixed wing drone, we use Microsoft ice for mosaic and agisoft for 3d model. In agisof you can do camera calibration and do ortophoto, work very good. Try to find this book! will answer all your questions. James S. Aber, Irene Marzolff, Johannes Ries, "Small-Format Aerial Photography: Principles, techniques and geoscience applications This book https://mega.co.nz/#!Bhcija7S!2vEmmLiQW0h2Yol64COzQY25Vgrz7_qC0A810MeJYWI 1 Quote Link to comment Share on other sites More sharing options...
Capricorn Posted December 11, 2014 Report Share Posted December 11, 2014 maunaloa, The data you gave is a callibration data created by PhotoModeler. You get it making 8 photos of a printed calibration patern to calculate lens distorsion. You can use this data later for any project (with the same camera) in PhotoModeler. I used PhotoModeler a lot long time ago, mostly for architectural visualizations to model existing houses. Quote Link to comment Share on other sites More sharing options...
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