AutoSens publishes Chronocam-Prophesee CTO and Co-Founder Christoph Posch presentation "Event-based vs conventional cameras for ADAS and autonomous driving applications:"
Does Chronocam/Prophesee really offer a product or are they still in powerpoint mode only? I tried to contact them several times without success via email about a potential applicaton in robotics asking for rough product specs. I am also suprised that they dont have a phone number on their website and apart from generic slides no product details. Are event based image sensors available? I find some on https://inivation.com but are there alternatives? The task I am interested in is to close a servo axis control loop over the camera image. So to "replace" (or cascade) a servo axis encoder by positoin information from a camera image. To control the position of a robot axis (where the camera is mounted) relative to the position of a fiducial tracked by the camera. The problem with conventional cameras is the bandwidth. Even with a strong PC you hardly reach the 1kHz range. DVS seems to be an alternative with high potential... What about QIS? Would the QIS approach open the door for tracking objects with high temporal resolution?
For this kind of operation, you need a smart CMOS sensor with on-processing. An optical mouse uses an tiny image for motion calculation, the frame rate can be easily more than 5Khz.
We have done many such closed loop robot servo things with our DVS sensors which are sold by inivation as R&D prototypes, admittedly rather expensive now for casual use. Sounds like a good DVS application. I have measured closed loop latency via USB in and USB out (with USB1.0 full speed output to servo controller) with about 2-3ms median latency on windows.
Here's a thought, see those shadows moving with the vehicles? Guess what, all the shadows will move when you move in your vehicle, a lot more data.
ReplyDeleteBut you'll detect only the contour of the shade, which is not that much more data.
DeleteDoes Chronocam/Prophesee really offer a product or are they still in powerpoint mode only? I tried to contact them several times without success via email about a potential applicaton in robotics asking for rough product specs. I am also suprised that they dont have a phone number on their website and apart from generic slides no product details.
ReplyDeleteAre event based image sensors available? I find some on https://inivation.com but are there alternatives?
The task I am interested in is to close a servo axis control loop over the camera image. So to "replace" (or cascade) a servo axis encoder by positoin information from a camera image. To control the position of a robot axis (where the camera is mounted) relative to the position of a fiducial tracked by the camera.
The problem with conventional cameras is the bandwidth. Even with a strong PC you hardly reach the 1kHz range. DVS seems to be an alternative with high potential...
What about QIS? Would the QIS approach open the door for tracking objects with high temporal resolution?
You can find further information here:
Deletehttp://www.prophesee.ai/contact-us/
right, there is an email-form. Problem: You dont get a reply.
DeleteFor this kind of operation, you need a smart CMOS sensor with on-processing. An optical mouse uses an tiny image for motion calculation, the frame rate can be easily more than 5Khz.
ReplyDeleteWe have done many such closed loop robot servo things with our DVS sensors which are sold by inivation as R&D prototypes, admittedly rather expensive now for casual use. Sounds like a good DVS application. I have measured closed loop latency via USB in and USB out (with USB1.0 full speed output to servo controller) with about 2-3ms median latency on windows.
ReplyDelete