Computer Vision – Page 5

Security Monitoring with IP Cameras

July 25, 2018 Patrick Gilfeather

Security Monitoring with IP Cameras The market offers many choices when it comes to IP cameras. Most people who purchase these devices typically use the bundled software or hardware. This can be convenient but has it limitations. Many of the manufacturers do not support other brands of devices. In this post I’ll be covering how to gather imaging and video directly from IP cameras without the need for the vendors software or hardware solution. The camera I’ll be demonstrating in…

Spectrograms with FFMpeg

September 18, 2017 Patrick Gilfeather

In this post I’ll be covering how to create image files that represent the sound levels and frequencies of a media file. These images are known as spectrograms. They provide a way to visually locate moments in time. This can be useful for a number of reasons. FFMpeg has a feature that lets us create spectrograms with the showspectrumpic filter. Details about this filter can be found here, https://ffmpeg.org/ffmpeg-filters.html#showspectrumpic. You can also get information about the filter by typing in…

Depthmapping with FFMpeg and OpenCV

September 11, 2017 Patrick Gilfeather

Depthmaps are typically greyscale images that represent how far an object is by the degree of shade. They can be white-near, black-near, or some other color scale such as ironbar. Depthmaps are useful for creating renders or systems that have a distance sensing need. In this post I’ll be using footage that I shot using 2 Innovv cameras. The rig was not precise, so I also post processed it to correct distortion and alignment issues. The post processing topic was…

CloudACM

Autonomous Computational Machines – From Cloud To Chip

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Category: Computer Vision