Sunday 26 February 2012

CCTV in the house

This afternoon, I went to Jalan Pasar to look for the wide angle web camera. However, I couldn't get any after went through all the shoplot at there. By not giving up, we keep on searching for possible shop and finally we went into a CCTV shop. We being told by the sale person that the CCTV could actually function as web camera and it is not only wide angle yet it can capture images that is 30 feets far from the camera. A DV converter is needed in order to connect the CCTV to the computer and the converter can be get at Low Yat Plaza. The sale person is so friendly by demonstrating and explaining the functionality of the CCTV to us. At last, I decided to buy the CCTV and take a try on it. After getting the CCTV, the next thing is to get a DV converter. With the help of my classmates, another test out take place. This time we replaced the web camera with CCTV. It is a infrared CCTV, so infrared light is needed for the detection. Before setting up the infrared light, we try to use the CCTV to detect the fiducial marker and we found that it is even more stable than a HD webcam. However, there are some changes after we set up the infrared lights where the marker tracking with CCV was become slightly unstable. We have tried out different method by figure out the possible issue that may cause the unstable detection like lighting issue. We even dismantle the CCTV in order to reduce the brightness that emitted  by infrared lights within the CCTV itself. It is still not working, but one thing that we can sure is CCTV could captured clearer images compared with web camera. 
Dismantle CCTV

Add film negative on the lenses to filter normal lighting

Marker successful tracked with CCTV without infrared light

Test out at home

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