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2018-09-14 17:28:54 -0500 marked best answer RVIZ: Efficient way to display large, incremental 2D images in 3D space

Hey guys,

as the title states, I am looking for an efficient way to display a large, incrementally growing, high resolution image in 3d space in RVIZ. Any suggestions?

My project partner are currently rendering every image on a seperate rectangle, which seems to be working. However it is eating the RAM for breakfast, which is not ideal.

Best regards,

Alex

2018-09-14 17:25:56 -0500 marked best answer RVIZ rendering of overlapping objects

Hey there,

I have two (most likely) trivial questions about RVIZ but don't know what to search for.

1) How does RVIZ (or OpenGL?) act on objects, that are covered by others. Will this cost me performance? Let's say I have two very similiar, overlapping pointclouds, will double points be rendered twice, or recognize that? 2) Is there a possibility to downsample large pointclouds -only- during rotation/zoom/tilt? I know that from other tools and I am curious if there are any options in ROS/RVIZ?

Thanks for the info and best regards,

Alex

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2017-12-05 06:22:21 -0500 asked a question RVIZ rendering of overlapping objects

RVIZ rendering of overlapping objects Hey there, I have two (most likely) trivial questions about RVIZ but don't know w

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2017-11-29 16:47:13 -0500 commented answer RVIZ: Efficient way to display large, incremental 2D images in 3D space

Ah, no that was a little misguiding. I have a stream of images that are mapped into a common reference plane. Every sing

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2017-11-29 11:39:13 -0500 commented answer RVIZ: Efficient way to display large, incremental 2D images in 3D space

Yes, that is what I mean! Resolution can be up to several megapixels I guess, but framerate is quite low. Maybe round ab

2017-11-29 08:43:51 -0500 asked a question RVIZ: Efficient way to display large, incremental 2D images in 3D space

RVIZ: Efficient way to display large, incremental 2D images in 3D space Hey guys, as the title states, I am looking for

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2017-04-12 01:55:58 -0500 commented answer ROS Message Best Practices

Hey, great answer thank you! Haven't heard of filters before, this might solve some problems. Is this the Standard way? Time divergence might be a Problem, my images passing through a visual slam. But I will try it, thanks again!

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2017-04-10 10:47:31 -0500 asked a question ROS Message Best Practices

Hey there guys,

I am quite new to ROS and have not been involved in bigger projects. However I am confronted with creating one on my own. Working through the tutorials and some literature some of my biggest questions are nowhere to be answered, or at least I don't know how to find them. They are basic (best practice) questions, hopefully you are not too annoyed to answer them :)

I am dealing with a lot of images. A node that is processing an image and adds a slice of information to it (like depth or pose), will I define a new message including the image and the additional informations? Or will I define a message, publishing the additional informations and recombine "image + additional data" in an subsequent node?

First way sounds wrong because of duplicated data, second way sounds annoying by always checking if message id of image is matching the corresponding id of the additional data. Do I miss a basic ros principle?

Thansk for your answer in advance, beste regards

Alex