this is one of the projects i've seen at cebit. it's not really new but still could be an interesting way to discuss a project inside an office or with clients. still in the current implementation i see two main problems.
first it should be able to generate the necessary sections and plans from a model made with for example autodesk revit. all the necessary informations are already included in such a model and the extra step of programing the interactions just doesn't fit to make quick modifications to the model.
the second issue is related to the camera navigation. in my eyes it's extremely important to give the viewer also the possibility to look up and down and not just to rotate horizontally. this could maybe be done with another technology i've seen at the fair. this technology adds the possibility of measuring not only 2 coordinates of a finger but also the distance to the screen making a third dimension of input possible. that's just an idea but we will see what future brings.
Sunday, March 13, 2011
Thursday, March 3, 2011
CeBIT - off topic
hi guys,
as i'm visiting CeBIT in hannover at the moment, i decided to make some off-topic posts on interesting stuff i've seen there within the next few days. more infos will follow soon!
as i'm visiting CeBIT in hannover at the moment, i decided to make some off-topic posts on interesting stuff i've seen there within the next few days. more infos will follow soon!
Monday, February 21, 2011
indoor navigation
i just saw this video of a software called junaio allowing indoor navigation based on a combination of image recognition (marker based) and orientation. i'll try to get some more information, but for the moment have a look at the dome video from the mobile world congress in barcelona.
Tuesday, February 1, 2011
current methods of augmented reality - geo tags vs. trackables (part2)
hi,
following my previous post this time i will write about the second widely used method to generate augmented reality. in this case this is done using so called trackables. this is also the method i used in my sample videos [1, 2] so far.
the general idea behind is the following. you take a 2d image with a lot of contrast points and preferably sharp edges between the elements on the picture. you can take basically any picture but the results might be not so good if you don't follow these rules. next you have to establish a spatial correlation between this trackable and the 3d model you want to show in your augmented reality application.
as i'm no mathematician or computer scientist i can't provide you with in depth information on how the tracking is exactly done but i will try to update my link collection as soon as i find some time. just about the basic principle. the application with the predefined trackable, the 3d model and the spatial relation uses the camera to get information about the surrounding. within the camera view the app uses algorithms to search for patterns of contrast that can also be found on the trackable. this is done in order to generate the correct 2d representation of the 3d model and to place it at the right position of the screen. as this happens each frame the viewer gets the impression of real time motion according to the motion of the device around the trackable.
to get a better impression how it works just have a look at my previously mentioned videos. as i'm still working a lot on that topic be sure that further clips will follow.
current methods of augmented reality (part1)
the general idea behind is the following. you take a 2d image with a lot of contrast points and preferably sharp edges between the elements on the picture. you can take basically any picture but the results might be not so good if you don't follow these rules. next you have to establish a spatial correlation between this trackable and the 3d model you want to show in your augmented reality application.
as i'm no mathematician or computer scientist i can't provide you with in depth information on how the tracking is exactly done but i will try to update my link collection as soon as i find some time. just about the basic principle. the application with the predefined trackable, the 3d model and the spatial relation uses the camera to get information about the surrounding. within the camera view the app uses algorithms to search for patterns of contrast that can also be found on the trackable. this is done in order to generate the correct 2d representation of the 3d model and to place it at the right position of the screen. as this happens each frame the viewer gets the impression of real time motion according to the motion of the device around the trackable.
to get a better impression how it works just have a look at my previously mentioned videos. as i'm still working a lot on that topic be sure that further clips will follow.
current methods of augmented reality (part1)
Friday, January 21, 2011
augmented reality preview 2 - virtual buttons
hi,
i just uploaded my second sample video. this one is about the concept and use of virtual buttons. they are user defined areas of the trackable, that react to occlusion. if occluded they can be used to trigger any event that one could implement in the unity3d platform. and there are a lot!
something i didn't mention in the clip is that this time, in order to reference the area of the buttons in relation to the trackable, i needed to work with real world dimensions. this means that i can exactly define how big a certain 3d element in my application will be related to a real object in my scene. this might not sound too important at the moment, but one of the things i try to do is a combination of real model and augmented 3d geometry. I will make some more tests on the reliability of the scale but this would be essential for such a combination.
for any questions, suggestions or further discussion, please leave a comment. i'm very interested in your opinion!
i just uploaded my second sample video. this one is about the concept and use of virtual buttons. they are user defined areas of the trackable, that react to occlusion. if occluded they can be used to trigger any event that one could implement in the unity3d platform. and there are a lot!
something i didn't mention in the clip is that this time, in order to reference the area of the buttons in relation to the trackable, i needed to work with real world dimensions. this means that i can exactly define how big a certain 3d element in my application will be related to a real object in my scene. this might not sound too important at the moment, but one of the things i try to do is a combination of real model and augmented 3d geometry. I will make some more tests on the reliability of the scale but this would be essential for such a combination.
for any questions, suggestions or further discussion, please leave a comment. i'm very interested in your opinion!
Saturday, January 15, 2011
video sample
hi guys,
sorry i'm recently very busy. i just want to let you know that i will try to publish a new video to show some more possibilities within the next week.
for any questions or suggestions just leave a comment.
sorry i'm recently very busy. i just want to let you know that i will try to publish a new video to show some more possibilities within the next week.
for any questions or suggestions just leave a comment.
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