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TOPEX BYTTON HSDPA
User’s Manual
pag. 60
5.6.3 Webcam
Shows and modifies settings of the web camera connected to BYTTON HSDPA.
WebCam Service
: Enabled or Disabled.
Image Size
: you may select one of the three values: 160x120, 320x240 or 640x480 (VGA). Default value
is 320x240. It is recommended that you start with the
minimum
value, then increase it if it works,
because some types of webcams do not support higher resolutions.
Image quality
: Range is from 100 to zero, 100 being uncompressed and 0 maximum compression.
Default value is 50, which gives a high compression and an acceptable quality and speed.
Uncompressed images have the highest quality, but the resulting video file is large and the frame rate
will be low.
Note: Depending on the webcam model, you may have access to various controls. Usually, the live
video screen inserted to the left.
5.6.5 PWC compatible cameras
BYTTON's firmware direct operation (no additional software is needed) of webcams that are compatible
with Linux PWC drivers. Decompression is supported for resolutions up to 640x480(maximum physical
resolution of most CCD sensors)
There are limits to the maximum resolution and frame rate. Thus, VGA resolutions are limited to 15 fps
because of the bandwidth available on the USB bus. The same cameras may work faster (up to 60
frames per second) when used at lower resolutions).
Other cameras only operate at quarter VGA resolutions: QCIF (176x144) or QSIF (160x120).
The PWC driver supports a wide range of general purpose webcams, such as:
-
from Philips: PCA645V,C PCA646VC, PCVC675K "Vesta" PCVC680K "Vesta Pro" PCVC690K
"Vesta Scan", PCVC720K/40 "ToUCam XS", PCVC730K "ToUCam Fun", PCVC740K "ToUCam
Pro", PCVC750K “ToUCam Scan" , PCVC830K "ToUCam Fun II", and PCVC840K "ToUCam
Pro II";
-
from Logitech: QuickCam 3000 Pro and 4000 Pro, QuickCam Notebook Pro, QuickCam Zoom,
QuickCam Orbit/Sphere;
-
from Creative Labs: old Webcam 5, Webcam Pro Ex;
-
from Samsung: MPC-C10 and MPC-C30;
-
from Visionite: VCS UM100, VCS UC300;
-
SPC900NC;
-
Sotec Afina Eye;
-
Askey VC010 .