This is a video tutorial on how to process drone images to make accurate map products using Pix4D Mapper software. [Updated on 16/11/2021] The sample data set used in this video can be found in : drive.google.com/drive/folder...
Пікірлер: 132
@flighttherapybullisticfpv1333 жыл бұрын
This video is INCREDIBLE! Thank you so much Sasanka! I hadnt used pix4d in almost a year and this was the perfect refresher.
@chiranjeevsaikia70072 жыл бұрын
Same here...after a long gap of 3 years....
@matthewkelley92004 жыл бұрын
Well done Sasanka! Very clear instruction and very helpful! Thank you!
@tningal3 жыл бұрын
Kudos to you, sasanka, a very clear and concise tutorial for anyone to follow and replicate.
@sairs5061 Жыл бұрын
Great instructional video at a the perfect pace to keep up! Worked through my own project alongside yours. So clear and concise. Easy to follow! Thank you!
@tharakaweragama8042 Жыл бұрын
Good Job mate , I was very happy to see one of my Uni mate doing this. Keep it up mate😍👊👊👊
@dilipkawli4263 жыл бұрын
Nicely explained, thanks Mr. Sasanka.
@anemoi26343 жыл бұрын
Thank you! That's the best tutorial by far!
@s10blazed2 жыл бұрын
Thank you! Your video was a huge help in getting my GCPs incorporated.
@ashishmalaviya4 жыл бұрын
Thank you so much Sasanka for making such a wonderful video you really explained it very well 🙏🏽🙏🏽
@SasankaMadawalagama4 жыл бұрын
Thank you so much
@alybadaracamara2005 Жыл бұрын
hello mr sasanka! happy to meet you through one of your videos (how to process drone images with pix4D). I am French speaking.
@MrDukkee3 жыл бұрын
Great tutorial! Please keep it up!
@Nicole-gk8jk Жыл бұрын
Thank you so much!! This was VERY helpful and easy to understand.
@SamithaDaranagama3 жыл бұрын
Great explanation. Thank you for uploading
@harbulence2 жыл бұрын
Very helpful, I could have paid for this, No jargon, straight to the point
@rabiah68873 жыл бұрын
Thank you sir, really appreciate your work ,sharing your knowledge with others . Your explanation really well.
@SasankaMadawalagama3 жыл бұрын
Thank you so much
@akshaychavare13684 жыл бұрын
Very helpful 👍 great job. Thank you
@nicolamurru78803 жыл бұрын
Thank you sir! Nice video!
@mantiekopok2983 Жыл бұрын
Sir, you did a good job. Well explained, thanks.
@sootherswontknow3 жыл бұрын
Absolutely, well done! By any chance do you have a video for "Merging"? I am having a difficult time trying to merge GROUND/Terrestrial images with aerial images. I have been using Pix4D "Catch" to get my terrestrial imagery and it just doesn't seem to want to process properly.
@chiranjeevsaikia70072 жыл бұрын
Such a brilliant lesson....tnxx brother ❤️
@rollo20523 жыл бұрын
This tutorial is awesome!!! Thank you so much for uploading :) Do you remember which settings you used in pix4d capture to create the grid? Like how much overlay and so on? I´m just asking because I am new to this and would love to start a similar project as well. Thanks in advance!!
@SasankaMadawalagama3 жыл бұрын
Thank you. For flight planning, I used 80% front overlap and 75% sidelap. This setting is optimal most of the times. :)
@alfredbockarie5085 Жыл бұрын
Great tutorial well explained
@brianjohnson4753 жыл бұрын
Nice Job! I had a hard time understanding you until I turned on "closed caption" and trying to keep up with all those mouse clicks. I can see how this is probably the most important critical step into map making. Even when you used automatic marking; the control point(s) still needed re-centering. I must admit an error less than 3cm is as perfect as this can get. Your video was great because you pointed out the most important attributes to be familiar with. I subscribed because you help provide me with enough confidence that Pix4D will be the next software that I will buy. One question though, that route you chose to fly, what was the software used in your mission? Was that Pix4D part of the mapping software? Thanks a Billion!
@SasankaMadawalagama3 жыл бұрын
Thank you for the critical feedback on the video. I really appreciate it. About the flight planning software there several free apps that you can use, which are capable of acquiring data to create a 3D map. Im using DJI GS Pro (www.dji.com/at/ground-station-pro) which is the most reliable for DJI drones. Other alternatives are Pix4D capture (www.pix4d.com/product/pix4dcapture) and DroneDeploy (www.dronedeploy.com/). If you are using a DJI drone, I strongly suggest running your flight planning software in an iPad because DJI SDK for iPad is more reliable compared to Android. Hope this would be helpful and happy flying :D
@godwillsagiya38034 жыл бұрын
Thabk you Mr Sasanka, this is a great video i have really learnt a lot from it. can you do more video on exporting of data to other softwares. map creation etc
@lithatyamzashe6349 Жыл бұрын
All I can say is Thank God for this Video
@themiftah20003 жыл бұрын
Hey Sasanka, it was amazing. Much better than ........😄
@mwaledex Жыл бұрын
Excellent video thanks
@haqj3 жыл бұрын
great explanation thanks alot
@claudelguiella1280 Жыл бұрын
I really appreciateThank you so much, amazing video really insightful
@DeepApnea2 жыл бұрын
Hello could you make a video on how to calibrate images (in red) without control points?; I would like to calibrate some images and relaunch the processing in order to get better 3D reconstruction of a photogrammetry
@user-vn2hf8gx3i11 ай бұрын
Hi Sasanka awesome video. I see the Accuracy Horz and Accuracy Vert columns default to a certain value when you dropped in your CSV. Would you ever change those values?
@aqeelnahi84702 жыл бұрын
Thank you so much,very informable
@RAVIKUMAR-bn9wx2 жыл бұрын
Absolutely, well done! By any chance do you have a video for "Merging
@alizitounahamed9668 Жыл бұрын
thank you Very helpful
@oktawialewicka22492 жыл бұрын
Thank you :D You are good teacher
@ahmedalzain24 жыл бұрын
you are the best
@obedmensah82762 жыл бұрын
great vid
@hazarvivlogz94104 жыл бұрын
GOOD JOB
@haradhannandy86523 жыл бұрын
Hi Sasanka, I have seen the ortho mosaic but there was some problems in building edge if you see it in 1:200 scale you can clearly see this problem.
@SasankaMadawalagama3 жыл бұрын
Yes, some distortion is there at the building edges. The way to minimize this distortion is by adding more images with more overlap, preferably as a double grid.
@dahaproject34984 жыл бұрын
how to solve wrong format on CCV?
@niamhodonoghue1123 жыл бұрын
I have a question. My Drone imagery is WGS84/UTM29 and GCPs in ITM. Should I convert drone imagery to ITM or gcp to wgs84? Want final output in ITM. I have already done initial processing and converted gcp to wgs84. But maybe I should start again? Thank you video is very helpful
@SasankaMadawalagama3 жыл бұрын
It's not necessary to convert manually. Pix4D will do that for you. When importing the images select the coordinate system as WGS84 (in most cases its automatically detected from image metadata). But when you are importing the GCPs in GCP/MTP Manager, make sure you select ITM as the coordinate system. You have to do this before importing the coordinates. Cheers. Happy processing
@frikfrikdovideos6 ай бұрын
Hello, just wanna ask, can you explain why 3 of the gcp is changed to checkpoint? and is it okay to mark it all as 3D GCP and no checkpoints?
@shinichiconan93235 жыл бұрын
Hello There, i want to ask, why when we export GCP.txt for GCP but the number of loaded become zero.?
@SasankaMadawalagama4 жыл бұрын
sorry for the late reply. Are you trying to export alredy loaded GCP file or do you want to load GCP coordinate file to Pix4D GCP/MTP manager?
@nanakwakye94158 ай бұрын
When the point classification is done, does Pix4d use only ground points to generate the DTM?
@TheJoel19644 жыл бұрын
hi - great turturials - can you export this diles to jepg & pdf format ? thanks
@SasankaMadawalagama3 жыл бұрын
It's possible to output as JPEG but not as PDF. ref: support.pix4d.com/hc/en-us/articles/360000897346-Inputs-and-outputs I suggest using QGIS to reformat and get your outputs in PDF/JPEG format
@abderrahmanezineelabidine47253 ай бұрын
thank u soooooo much
@sattarali7632 жыл бұрын
thank you
@satyaPrakash-fe4cx3 жыл бұрын
Yery nice sir
@amaniadha6272 Жыл бұрын
what happen after we tie the GCP, and then we click the Load Optimized Parameter ?
@geoid15962 жыл бұрын
Then how to calculate volume of a stock ya dumped area
@mohammedmakawe14274 жыл бұрын
Hello Sasanka, Did you figure out why the drone shows the error in elevation ?
@SasankaMadawalagama3 жыл бұрын
Not yet, but I have a guess. The drone normally uses the barometer readings to determine the altitude because it's more reliable and sensitive than the integrated GNSS. It might be due to this but this is just a guess
@chefsurveyor3 жыл бұрын
Hey dude I follow your tutorial but I cannot reoptimized my project when I click the gcp only one images come out. I'm using panthom 4 pro v2
@SasankaMadawalagama3 жыл бұрын
Well, there can be several possibilities 1) Randomly select several GCPs and check in the dataset how many images containing that GCP is available 2) If your dataset is correct, double-check the GCP coordinates and especially the coordinate system Let know after doing this
@mtmtgis473 жыл бұрын
Very informative. I think you missed to define the 6and7 check points GCP Manager . Initially you said that points Will not involve in georeferencing. Thanks alot.
@SasankaMadawalagama3 жыл бұрын
Points 5,6 & 7 are used to validate the geolocation accuracy so they were assigned as check points (see 22:23). Please note that even though points 5,6 and 7 do not contribute to georeferencing the map, it is required to mark them in images to observe the errors and compute the accuracy. Those points were correctly marked in the images (see 41:10). I do not find any mistake here :)
@dahaproject34984 жыл бұрын
how to fix error e0015? when I input GCP csv. wrong format. I follow procedure. please solution
@SasankaMadawalagama3 жыл бұрын
It will be better if you can send me a screenshot and more details about the issue.
@mahendraranadeep71052 жыл бұрын
Hello there! Can you please tell me what camera is using for capturing the images.
@SasankaMadawalagama2 жыл бұрын
Its the inbuilt camera of phantom 4. The sensor is good enough.
@jean-francoisfortier87272 жыл бұрын
I did a mapping with my drone. the assembly of orthomosaic is perfect. However, once in KML in google earth all my mapping is shifted by 3.5 meters from the RTK point. How to remedy the situation?
@SasankaMadawalagama2 жыл бұрын
Google earth is an amaizing tool but keep in mind that it has significant amount of positional error (read: www.mdpi.com/1424-8220/8/12/7973/pdf) which can be varied from place to place. So its not a good idea to verify the accuracy of your products using google earth. Most probably your products are accurate in terms of geo coordinates. There are few things you can do if you want to use google earth to be a base map for your products: 1) First verify the product overlay in Pix4D, use google base map 2) if there is a shift, use QGIS to do a translation to your orthomap and export to KML afterwards, using QGIS -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- another possibility is that an offset is introduced to your base station coordinates which has affected your GCP survey and hence photogrammetric products as well. Since the offset is constant for all GCPs and check points you wont see an error in the quality report.
@samarjeetsalunke69622 жыл бұрын
Hello!! Your video is incredible. I am trying to fetch the sample data which you have mentioned in the link discription, but i am uable to fetch it. Can you please help me with providing the link to this sample data?
@SasankaMadawalagama2 жыл бұрын
Thank you so much for pointing this out. I have updated the link and now you can download the images, GCP/CP coordinates and the layout. :)
@dingding-lj7lq3 ай бұрын
I think there is something wrong,because pos system is GPS PTK system. The elevation system is WGS84.
@nikhilvinay67943 жыл бұрын
Thank so much for effective explanation step by step and i have some doubts abt processing and how can i contact
@SasankaMadawalagama3 жыл бұрын
thank you for the comment. you can drop me a msg on skype. sasanka.madawalagama
@MrPhakdey Жыл бұрын
You may remember me from Cambodia. I miss AIT.
@wryahade45403 жыл бұрын
gooood work my dear. i want to buy DJI Phantom 4pro plus 2.0v. is that good accuracy? i want for land surveying and contour map. thanks.
@SasankaMadawalagama3 жыл бұрын
DJI P4P V2.0 is a good choice. keep in mind that you will need an RTK GNSS unit to establish ground control. Also check the RTK version of the phantom 4 and go for it if your budget allows. www.dji.com/at/phantom-4-rtk?site=brandsite&from=nav
@wryahade45403 жыл бұрын
@@SasankaMadawalagama many thanks.
@ragavand8331 Жыл бұрын
You took it as smooth as a breeze. Kudos. If you can come up with another video on different settings to use in different terrains, managing homogenity or heterogenity in the landcape, it would be great. Thanks.
@jonashulslander4259 Жыл бұрын
😂😊❤
@jonashulslander4259 Жыл бұрын
❤7😮
@jonashulslander4259 Жыл бұрын
5😢0😂😮❤😂2😮🎉😢❤
@jonashulslander4259 Жыл бұрын
😊3😢😊
@jonashulslander4259 Жыл бұрын
2😂😢 44:06 😢
@salimyapc38262 жыл бұрын
can you please reupload the used sample data set, i want to follow along and try it out myself but have no data
@SasankaMadawalagama2 жыл бұрын
sorry for the late reply. I have updated the lik to the dataset
@salimyapc38262 жыл бұрын
@@SasankaMadawalagama thank you
@aleeyafarishaidzwan56276 ай бұрын
What the title of this project
@kasunrathnayaka63 жыл бұрын
I just need pix4dmapper account for my final year undergraduate research..Can you help me plx
@SasankaMadawalagama3 жыл бұрын
drop me an email: madawalagama@gmail.com i ll provide you further instructions
@dingding-lj7lq3 ай бұрын
I want to your data,you are good .If you give me your data for my study, I will thinks a lot