Fb is making AI that will presumably identify offensive memes

A figurine is seen in front of the Facebook logo in this illustration taken

[Image: courtesy of Facebook] Now, though, Facebook says it has a new arrow in its quiver-a tool known as Rosetta that uses machine learning to better understand text embedded in imagery or videos.

According to the social network, Rosetta extracts text from over a billion images and video frames in a wide variety of languages every day in real time.

In a recent blog post, Facebook has described a new machine learning-powered system that can identify text in videos and images, and transcribe the text into a machine-readable format. The system can analyze the contents of not only standalone files, but also individual frames within videos. It will scan all the image on which it is overlaid which will lead to the engineers I order to equip Rosetta with the predictive capabilities. It analyzes images and uses historical data, rather than just the visual profile of the individual characters, to understand the writing. Facebook said this approach enables Rosetta to recognize words of any length, even ones it wasn't exposed to during the training phase of development.

"Once we obtain the bounding boxes for word locations on an image, they are cropped and resized to a height of 32 pixels with the aspect ratio maintained", detailed the Facebook engineers who worked on Rosetta.

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"Text extracted from images is being used to improve the relevance and quality of photo search, automatically identifying content that violates our hate-speech policy on the platform in various languages, and improve the accuracy of classification of photos in News Feed to surface more personalised content", the networking giant noted.

While Rosetta has been created to scan and read images and video frame, a particularly interesting use case of the technology is in scanning the memes, which appear frequently on the company's two platforms. It scans all the images using a technique that differs from those employed by traditional text recognition software.

In the future, Facebook says it could apply the same technology toward understanding text that appears in video as well, though that requires a more complex system.

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