1. Fast Camera: Process Data on the Fly
University of Washington
Presented by:
Mike Grow & Jared Tritz

2. Saliva Analysis

3. Microscope arrangement:
Before detection
CMOS IMAGER
DSP
After detection
CMOS IMAGER
DSP

4. CMOS versus CCD
CMOS sensors, traditionally, are more susceptible to noise.
Because each pixel on a CMOS sensor has several transistors located next to it, the light sensitivity of a CMOS chip tends to be lower. Many of the photons hitting the chip hit the transistors instead of the photodiode.
CMOS chips can be fabricated on just about any standard silicon production line, so they tend to be extremely inexpensive compared to CCD sensors.
CCD sensors create high-quality, low-noise images.
CCDs use a process that consumes lots of power. CCDs consume as much as 100 times more power than an equivalent CMOS sensor.
CCD sensors have been mass produced for a longer period of time, so they are more mature. They tend to have higher quality and more pixels.

5. Rough Hardware Overview
Circuit board
CMOS imager,
prism,
and optics
Image
acquisition
DSP
Noise
removal
Portable device
Data
analysis ?
SDRAM
USB 2.0
Firewire
Ethernet
Other

6. Specifications Hard specs Soft specs Monochromatic imager
Unit production parts cost < $100
Power < 1 watt
Soft specs
100 x 100 to 500 x 500
pixel resolution
100 to 600 frames/s
Development cost < $10000
~ 30 MOPS (CPU core)
128 x 101, 580 fps
256 Kbytes on-chip addressable memory

7. Software Tasks DSP DSP or portable device Portable device
Averaging or binning for noise removal
Push output data to portable device
DSP or portable device
Post processing
Portable device
Presentation of data in a graphical format

8. Timeline Overview Week Tasks 2 Specifications, research, preparation 3
Design 4
Finish design, start development 5
Development 6 7
System integration 8
Testing 9
Testing, project presentation 10
Finish testing, report/documentation, demo

9. Conclusion
Questions
Comments
Input
Feedback