visionhack

Turn math into pixels

18. März 2013
nach pschmidt
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How to scale NewsBlur

After Google’s announcement of shutting down it’s famous Google Reader service, a lot of people start asking what they use now for aggregating their RSS-Feeds. Also an petition has been set up to convince Google to keep their service as is.

Famous Tech-Blogs like Lifehacker and Ars Technica wrote about the alternatives on the web.

The Top 3 are the following:

According to their respective features, they all seem to be relatively mature. After that first wave of rumors NewsBlur Main-Dev Samuel Clay wrote a blog post where he mention some points about getting hit by 50,000 signups in a very short time. He also describes the problems running the site, especially scaling the application and porting it from one hoster to another and keeping paying customers happy.

As the optimistic title predicts, there will be a lot of hard work during the next three months to improve the quality of NewsBlur: Three Months to Scale NewsBlur

30. Dezember 2012
nach pschmidt
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Lena and computer vision

The picture of Lena Söderberg (left) is one of the most used test images for computer vision scientists. This Wikipedia article covers some trivia behind this picture.

I asked myself if the time has come to refresh this „running-gag“ by replacing Söderbergs image by the right one showing the german female singer Lena Meyer-Landruth Weiterlesen →

30. Dezember 2012
nach pschmidt
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Qt-Cuda: My new playground for computer-vision

designedforcudaTwo weeks ago I started a new project, it’s called Qt-Cuda. As the name suggests it combines the Qt-Framework with Cuda-enabled algorithms. Algorithms for computer-vision to be precise.

Qt will only be used for the graphical interface and delegates most computations to backend-libraries, e.g. openCV, PCL and self-written ones. Weiterlesen →

30. Dezember 2012
nach pschmidt
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Cuda by example: An Introduction to General -Purpose GPU Programming

After several attempts to learn development of applications using NVIDIAs CUDA architecture I’ve bought a really cool book covering all the basics and stuff beyond.

After 2 chapters all fears and confusions regarding to the GPGPU are gone. The authors explain all neccessary terminology at the beginning of the book such as memory, device- and host-code, grids, block-indicies and much more. Followed by several very basic programming tutorials a good fundation is made. Weiterlesen →

23. September 2012
nach pschmidt
2 Kommentare

Installation: USAP-Programmer with ubuntu

Two weeks ago, I purchased a ISP-Programmer and ATmega328p from Guloshop. The programmer is based on the USBasp designed by Fischl. Since then, I had some trouble getting the programmer recognized with Ubuntu 12.04. Here’s a quick tutorial how to fix this, so you can get your hands dirty. Weiterlesen →