Messages

1

General / Re: Best flight planning software for photogrammetry for DJI Mavic with Android?

« on: March 22, 2017, 01:03:50 AM »

Apparently it is not worth it capturing RAW images in all cases, this was said from one of the cofounders of PIX4D on a webinar. JPG is in most cases good enough, as RAW images will help adjusting exposure but overall the image quality is very much the same.

There are many, such as drone deploy, drones made easy, litchi, etc.

Keep researching! It will pay off!

2

General / How to make a Panorama?

« on: March 21, 2017, 06:02:27 PM »

Hi All, I am tring to make a Panorama but nothing appears once it has run the Alignment and I sent the pictures to a new group and made the group stationary before alligning the photos.

What am i dong wrong?

Thanks

3

General / Re: JPG vs DNG... same amount of dense cloud points

« on: January 13, 2017, 02:40:38 AM »

the dense clud depends on the number of pixels in the image since this is not changing you can expect the same results in dense cloud
however the allignment works better with dng and it produces much less noise especialy in pmodels with a high dynamic range
i made tests with a monument half in shadow and half in light and the dng model was so much cleaner...
frank

Excellent, thank you Frank

4

General / JPG vs DNG... same amount of dense cloud points

« on: January 01, 2017, 10:14:22 AM »

I know DNG images are much larger in size and I have read here that DNG are best to use.

But when comparing the model made from JPG images to the model made from DNG images (same amount of images), both are just under 8 million points when viewing in the dense cloud...

Thus contradicting what I have read that DNG images are better to use...

when viewing in alligned the JPG shows 61 thousand points while the DNG shows 66 thousand points..

but the JPG model has mode dense cloud points then the DNG model.. JPG 7 million 9hundred thousand and the DNG showing 7 million 7 hundred thousand

5

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 28, 2016, 07:15:39 AM »

Hello CanadianOne,

After building the dense cloud you can build DEM using the corresponding option in the Workflow menu, when it's generated you can open it in the Ortho view mode by double-clicking on the DEM label in the chunk's contents of the Workspace pane.

In the Orhto view mode you can draw the shapes and use measurement functionality, volume can be measured for polygonal shapes.

Excellent works great! Now when inserting scale bars, is there any need to optimize the model after the measurements of the scale bars have been created?

I am just unsure about the work flow procedure involving inserting scale bars.

6

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 26, 2016, 03:39:07 AM »

I managed to update to the latest version! Wow, there are some changes, I hope my friend isnt going to be too upset.

Anyways, now what is the work flow process in order to get what you have showing in that screen shot? I see now I can generate a DEM and Ortho in the workflow tab. Thats new to me.

7

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 25, 2016, 07:40:18 PM »

Hello CanadianOne,

The screenshot is from Ortho view, that can be opened by double-clicking on the orthomosaic/DEM label in the Workspace pane. But it is a feature introduced in the version 1.2, so if you have previous version, you might not have it yet.

I am currently using a previous version without capabilities of updating it as I am not the administrator on the PC

Is there anyway to successfully perform a volumetric measurement with this version?

8

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 25, 2016, 06:56:37 PM »

Hello CanadianOne,

Thank you for providing the project file.
Actually I don't see and reference issues and high errors (like on your screenshot) in the project. All errors on the cameras are about 1 meter.
The average flying altitude is about 35 meters, according to the generated report file. The altitude values in the Reference pane should represent the height above the ellipsoid, not above the ground level, so don't see any issue in having 600 m.

Rough area measurement for the stockpile gave me about 830 sq. meters, the screenshot of the volume measurement is below:

Wow interesting! Thank you for clarifying that for me!

How did you perform that measurement, How was that screen shot generated?

9

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 24, 2016, 10:42:53 PM »

Yes I will send the email now.

10

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 24, 2016, 09:43:47 PM »

Hi Alexey,

I will try this.

I can not update as I am using a friends computer who is away for a few months and has given me instructions to not update his PC or any programs as he is annoyed with the changes it brings.

I will try to encourage him to let me update the program.

I have unchecked the markers, and have clicked update and still the same issue.

I have loaded another model I created a month ago and noticed the xyz coordinates were similar -118 and 900 meters altitude

11

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 24, 2016, 08:20:02 AM »

I am trying to do a volumetric measurement and am having trouble.

Here is the camera allignment if thats what your asking

12

General / Re: Agisoft is saying pictures are 650m high, how to fix this?

« on: October 24, 2016, 08:18:15 AM »

print screen windows

13

General / Agisoft is saying pictures are 650m high, how to fix this?

« on: October 23, 2016, 08:50:20 PM »

Hi everyone, when I add the 300 images from my UAV and then complete the allign process the xyz coordinates look horribly wrong when viewing the source.

the X is -118... the y is 55 and the altitude is 600 when the drone was only 40 meters high.

How do I fix this?

thanks

14

General / Re: Thinking of upgrading RAM - Having difficulty creating model of 800+ images

« on: October 05, 2016, 07:06:31 PM »

To build a high quality dense cloud, it is taking 15+ hours to process 868 images of a gas plant. (12 MP). Id like to decrease this time

You will need more GTX 980.

Wrong, I just got more RAM and that helped significantly.

And there are many here on the forums who have built models considering of thousands of images and they have less of a powerful built PC compared to mine...

15

General / Thinking of upgrading RAM - Having difficulty creating model of 800+ images

« on: September 29, 2016, 09:02:05 AM »

Hi all, I have a fairly beafy system with the GTX 980 graphics card, and 32 GB DDR RAM.

To build a high quality dense cloud, it is taking 15+ hours to process 868 images of a gas plant. (12 MP). Id like to decrease this time so I'm going to purchase new Ram hoping this is the best solution.

I have run into problems before processing other models with the error message "Not Enough Memory"

Id like to start taking upwards of 1000-1500 images for large sites.

Here is my work flow.

Align photos.

High
Pair preseletion: Disabled - I have chosen Generic for faster processing will this decrease the quality significantly?
Key point limit: 40000
Tie point limit: 1000

Build Dense Cloud

Quality High
Depth Filtering: Mild ( as I want to be able to see a flare stack and cell tower.. if that makes sense?) Or should I have it as agressive.


Build Mesh

Arbitrary
Dense
High

Interpolation: Enabled.

Build Text

Generic
Mosaic
4096 X1

If theres anything I should do differently, Id appreciate it. I am waiting on my results as the high quality version is still processing... I ran the mode at a medium dense cloud setting and already have seen many imperfetions.