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Graphics/Vision Interesting Topics


Graphics/Vision Interesting Topics

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Graphics/Vision Interesting Topics
Tag : development , By : nseibert
Date : January 10 2021, 01:57 PM


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Computer Vision / Augmented Reality: how to overlay 3D objects over vision?


Tag : algorithm , By : jamerson
Date : March 29 2020, 07:55 AM
Any of those help This is a pretty well known problem in computer vision. There are various papers you can refer to for this, including systems that do simultaneous localisation and mapping (SLAM), which may use either bundle adjustment or filter-based tracking. Reading up popular papers on these topics will give you a lot of insight into cameras and tracking in the real world.
To summarise, you will need to obtain the 6D pose of the camera in every frame i.e. you need to figure out where the camera is in the real world (translation), and where it is pointing (rotation). This is usually done by first tracking salient features in the scene, estimating their 3D positions and then using the perceived motion of these features to figure out the camera pose in every frame. You will need to define an origin (you cannot use the camera as the origin for the problem you're trying to solve) in the real world and have at least 4 known/measured points as a reference to start with. In the video you've included in your question, Augment seem to use a printed pattern to get the initial camera pose. They then track features in the real world to continue tracking the pose.

google Cloud Vision API: node.js and an image URI, how to invoke vision.detectText()?


Tag : development , By : Cesar Sanz
Date : March 29 2020, 07:55 AM
I hope this helps . It looks like you're not setting your GOOGLE_APPLICATION_CREDENTIALS environment variable. The following code works as tested:
const Vision = require('@google-cloud/vision');
const vision = Vision();
const fileName = 'http://example.com/eg.jpg';

vision.detectText(fileName)
  .then((results) => {
    const detections = results[0];

    console.log('Text:');
    detections.forEach((text) => console.log(text));
    })
    .catch((err) => {
      console.error('ERROR:', err);
    });
node detect.js fulltext http://www.identifont.com/samples/houseindustries/NeutraText.gif

Vision API : Difference in results from drag drop and java vision api client


Tag : google-cloud-platfor , By : Arun Thakkar
Date : March 29 2020, 07:55 AM
it should still fix some issue I am not sure how exactly looks your http request. But make sure you read the API docs for that maxResults parameter. This can be the cause for so few results.

UrlGenerationException: Missing required parameters for [Route: topics.update] [URI: topics/{topic}]


Tag : laravel , By : Anna
Date : March 29 2020, 07:55 AM
wish of those help I'm getting this error: , Instead of:
{!! Form::open(['action' => 'TopicController@update', 'method' => 'POST']) !!}
{!! Form::open(['url' => route('topics.update', $topic->id), 'method' => 'POST']) !!}

from torchvision.datasets.vision import VisionDataset ImportError: No module named vision


Tag : development , By : Gianluca Riccardi
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You need to upgrade your torchvision package as VisionDataset was introduced in torchvision 0.3.0 in PR#749 as a base class for all datasets. Check the release.
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