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FontCode

Research from Columbia Computer Graphics Group can create textual encryption by minute altering of font characteristics using neural networks:

We introduce FontCode, an information embedding technique for text documents. Provided a text document with specific fonts, our method embeds user-specified information in the text by perturbing the glyphs of text characters while preserving the text content. We devise an algorithm to choose unobtrusive yet machine-recognizable glyph perturbations, leveraging a recently developed generative model that alters the glyphs of each character continuously on a font manifold. We then introduce an algorithm that embeds a user-provided message in the text document and produces an encoded document whose appearance is minimally perturbed from the original document. We also present a glyph recognition method that recovers the embedded information from an encoded document stored as a vector graphic or pixel image, or even on a printed paper. In addition, we introduce a new error-correction coding scheme that rectifies a certain number of recognition errors. Lastly, we demonstrate that our technique enables a wide array of applications, using it as a text document metadata holder, an unobtrusive optical barcode, a cryptographic message embedding scheme, and a text document signature.

Just A Line

Google Creative Lab have released an Augmented Reality doodle app that will work with all modern Android phones, and allows you to create a video of your work:

Make simple drawings in AR, then share your creation with a short video.

Based on our previous open-source experiments with ARCore, Just a Line is an app that lets you make simple drawings in augmented reality, then share your creation with a short video. Touch the screen to draw, then hit record and share what you make. If you’re a developer, you can use the open-sourced code as a starter project for ARCore.