Photon Focus MV1-D1280-L01-1280-G2-12, User Manual, Page: 35 / 139

5
Functionality
This chapter serves as an overview of the camera configuration modes and explains camera
features. The goal is to describe what can be done with the camera. The setup of the cameras
is explained in later chapters.
5.1 Reduction of Image Size
With Photonfocus cameras there are several possibilities to focus on the interesting parts of an
image, thus reducing the data rate and increasing the frame rate. The most commonly used
feature is Region of Interest (ROI).
5.1.1 Region of Interest (ROI)
Some applications do not need full image resolution. By reducing the image size to a certain
region of interest (ROI), the frame rate can be increased. A region of interest can be almost
any rectangular window and is specified by its position within the full frame and its width (W)
and height (H).
The ROI width must be a multiple of 16.
The ROI height is not restricted.
A list of common image dimension and its frame rates is shown in Table 5.1. There is a frame
rate calculator in the support section of the Photonfocus web page www.photonfocus.com.
ROI Dimension Streaming Image Burst
1)
1280 x 1024 85 fps 947 fps
1280 x 768 (WXGA) 113 fps 1262 fps
800 x 600 (SVGA) 233 fps 1610 fps
640 x 480 (VGA) 364 fps 2000 fps
256 x 256 1709 fps 3730 fps
512 x 512 427 fps 1880 fps
640 x 640 273 fps 1510 fps
1024 x 1024 106 fps 947 fps
Table 5.1: Frame rates of different ROI settings (minimal exposure time). (Footnotes:
1)
256MB RAM avail-
able for image burst capturing)
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