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Camera Performance and Features
Linea HS 32k CMOS TDI Cameras
Imaging Modes
See the section Camera Control Category in Appendix A for GenICam features associated with this
section and how to use them
The Linea HS 32k is capable of being run in five different modes: 32k SR Detail Restored, 32k SR
Mapped, TDI, TDI Area mode and TDI Multi Area.
32k Super Resolution Modes
Unlike typical bilinear or bicubic interpolation methods, Teledyne DALSA’s proprietary and patent-
pending super resolution system derives a balanced, artifact free 32k image that provides higher
detectability, especially for small defects, high MTF (modulation transfer function, also known as
spatial frequency response), low noise and high SNR, all with the responsivity of a 5um pixel. The
combination of camera, CLHS interface and High-Resolution framegrabber enables this functionality
up to 150kHz line rate.
32k SR Mapped
The SR mapped function utilizes the first stage in Teledyne DALSA’s patented processing chain. The
high resolution image is created, benefitting the system with higher Full Well, higher SNR and
lower noise.
This mode provides the lowest level of data processing in the Teledyne DALSA system and hence
poses the lowest risk of affecting subsequent user data processing.
Use this mode in the initial setup to evaluate whether your system benefits enough from the 32k
SR operation and to avoid conflicts for your algorithms.
32k SR Detail Restored
The Detail Restored mode, when selected, enables the “SR Strength” (
) parameter for
user adjustment.
With “Detail Restored”, the full Teledyne DALSAs patented processing chain is activated and sub-
pixel information is extracted and enhanced via the “strength” parameter. This function gradually
increases the system MTF and provides higher effective SNR for small and sub-pixel defects without
affecting noise significantly.
It is highly recommended that the user tests these settings in their own application and adjust the
“strength” (between 0 and 1) to identify the best balance between enhanced detection (higher SNR
for given defects) and potential false positives that subsequent algorithms may identify.
TDI Mode
TDI mode outputs a lower resolution 16k pixel line (5um pixel pitch without super resolution),
allowing twice the responsivity and twice the speed of the 32k modes (2.5um effective pixel pitch
with super resolution). TDI mode uses a single 128 stage sensor array. The camera combines
multiple exposures of an object as it passes each row in the array into one high sensitivity 16,384
pixel image. A 300 kHz line rate can be achieved in this mode.
