TagSLAM is a ROS based package for simultaneous multi-camera localization and mapping (SLAM) with the popular AprilTags. In essence TagSLAM is a front-end to the GTSAM optimizer which makes it easy to use AprilTags for visual SLAM. For more technical details, have a look at this draft paper. Read more
Evaluating Modest SaaS Business Ideas
There’s no “One Right Way” to evaluate a business idea; it’s a very personal process. Everyone has different requirements and priorities that they have to balance, and what might be an amazing idea for one person sounds like a terrible idea for another. Read more
John Siracusa
On @atpfm 431 we discussed the latest ARM-based Mac Pro rumors. Keeping in mind that Apple’s marketing diagram of the M1 SoC does NOT accurately represent the floor plan of the chip, I nevertheless thought it would be fun to extrapolate from it to the rumored Mac Pro power plant. Read more
Canada Declares Plastics Toxic, Paving the Way for Restrictions
This story was originally published by Canada’s National Observer and is reproduced here as part of the Climate Desk collaboration. Read more
River Runner : drop a raindrop anywhere in the USA, watch where it ends up : Hacker News
dvt 11 minutes ago [–] This is amazing, outstanding project! Interestingly, I got it “stuck” when I clicked somewhere random in California (Pope Valley, apparently): https://ift.tt/3wD4Jvl fillskills 12 minutes ago [–] This is simply amazing. Read more
Restrict Internet Access – Docker Container – Stack Overflow
Source: Restrict Internet Access – Docker Container – Stack Overflow
How Pfizer Makes Its Covid-19 Vaccine
Inside this facility in Chesterfield, Missouri, trillions of bacteria are producing tiny loops of DNA containing coronavirus genes — the raw material for the Pfizer-BioNTech vaccine. Read more
写House3D渲染的时候踩过的坑
House3D 是一个用于research的交互式3D环境. 用户可以载入一个来自SUNCG数据集的房子的模型,然后在里面走来走去,并获得first-person view的图片输入. 我写了House3D的渲染代码,过程中踩到了不少神奇的坑,坑踩的多了就觉得干脆记下来吧. Read more
OpenPano: How to write a Panorama Stitcher
This is a summary of the algorithms I used to write OpenPano: an open source panorama stitcher. You can find the source code on github. Lowe’s SIFT [1] algorithm is implemented in feature/. The procedure of the algorithm and some results are briefly described in this section. Read more
本地研究：监测污水可发现组屋内是否有人感染冠病
（早报讯）本地最新研究证实，监测组屋排出的污水是否有冠状病毒，就可发现组屋内是否有人受感染，甚至可在受感染者还未出现症状时就发现病例，这比一一检测组屋居民来得快又不具侵入性。 Read more