Editing N900 VGA camera
Warning: You are not logged in.
Your IP address will be recorded in this page's edit history.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
- | + | The front camera is a VGA camera from ST microelectronics. | |
- | + | ||
- | The | + | |
The [http://www.alldatasheet.com/datasheet-pdf/pdf/206482/STMICROELECTRONICS/VS6555.html datasheet] lists the following specs. | The [http://www.alldatasheet.com/datasheet-pdf/pdf/206482/STMICROELECTRONICS/VS6555.html datasheet] lists the following specs. | ||
- | * Size: 4. | + | * Size: 4.5*4.5*2.5mm |
- | * Resolution: | + | * Resolution: 640*480 |
- | * minimum illumination 7 lux | + | * minimum illumination 7 lux. |
- | * SNR at 100 lux | + | * SNR at 100 lux 34dB |
- | * Field of view: 66 degrees horizontal, 78 degrees diagonal | + | * Field of view: 66 degrees horizontal, 78 degrees diagonal. |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | The driver presents the camera as a video4linux device - /dev/video1. | |
- | + | ||
- | + | This is connected via a multiplexor to the single camera bus on the CPU, along with the main camera. The two cannot be used at once. | |
- | + | This camera had severe performance problems under the original software release - under the one released in early January - in very good light, the picture is acceptable. | |
+ | In normal room light, the performance remains lower than would be hoped. | ||
- | [[Category: | + | [[Category:n900]] [[Category:n900_Hardware]] |
- | [[Category: | + |
Learn more about Contributing to the wiki.