Embedded Eye

Give your gizmo the gift of sight

About Embedded Eye

Welcome! Embedded Eye is a community site hosted by Centeye for discussions on embedded vision systems. This includes all relevant technical areas including optics, image sensors, algorithms, and applications, including how these components are put together. We encourage you to ask questions, share your ideas, provide comments, and otherwise help each other do neat things.

This is an inclusive community. We welcome technologists of all levels, and of all interests and applications related to embedded vision. Although this site is hosted by Centeye, we welcome discussion of non-Centeye topics and hardware, and encourage participation by competitors as well as by customers and collaborators.

Latest Activity

James Burns is now a member of Embedded Eye
Apr 16
Jabir Abdullah Masum is now a member of Embedded Eye
Apr 14
Alexey Smirnov is now a member of Embedded Eye
Apr 13
Profile IconABhishek Joshi and Paulo Sérgio Pereira joined Embedded Eye
Apr 8
Joe Watson replied to Joe Watson's discussion Some Things I have learned about the Stonyman imaging chips
"Just a very minor correction. In both of the program loops described, the last instruction (the one that branches back to Loop if not done) actually takes two instruction times, not one. Therefore, the first loop takes seven instruction times or 583…"
Apr 6
Jeff K commented on Geoffrey L. Barrows's blog post Why an optical mouse does not work when you hold it up
"Thanks for this explanation article. I have a question regarding this part: I may be failing horribly to follow the math (have a history of doing that) but is it possible to have an additional lens placed at about the desktop distance (r1?) under…"
Apr 5
Jeff K is now a member of Embedded Eye
Apr 5
Kahlil Ali posted a status
"To report an issue, I was required to register."
Apr 2
Kahlil Ali is now a member of Embedded Eye
Apr 2
Joe Watson posted a discussion

Some Things I have learned about the Stonyman imaging chips

Sometimes, experimentation provides a lot of good answers.After reading the data sheet for the Stonyman imaging chip, I set out to operate one using a PIC 18F2550 microcontroller. I developed a simple circuit that would allow the analog output from the imaging chip to be turned directly into a real time composite video signal suitable for presentation using a television set. My video signal is not totally compliant with the NTSC standard but I have been displaying it using an older analog TV.…See More
Apr 2
Profile IconDanilo Porcarelli and William Huang joined Embedded Eye
Mar 31
William Huang replied to Irene Donati's discussion Stonyman Power consumption/Characterization in subthreshold regime (3.3 V)
"I was looking into this a little bit, and based on the referenced discussion and some work an old labmate of mine did, your current consumption seems high.  By the way, I think your amplifier gain is set to 3, not 2 For current measurement,…"
Mar 31
donghuiyun6668 posted a discussion

centeye optical Flow

Now I am using the Centeye on ATMEGA2560 r3 board ,and download the  example ArduEye_OpticalFlow_Example_v1.ino into the board .I let  the value of OFType=2 and print the filtered_OFX and filtered_OFY in the loop(),but I find the vaule of filtered_OFX and filtered_OFY Is not  stable,and when keeping the ship static ,the value is near zero.I tried to correct the following code:ArduEyeOFO.LPF(&filtered_OFX,&OFX,0.35);ArduEyeOFO.LPF(&filtered_OFY,&OFY,0.35);changing to  the…See More
Mar 31
donghuiyun6668 posted a discussion

centeye position

I am  trying to use the Centeye Sonyman chip forthe quadrotor position using the optical flow .  I know it can realize  hovering in a place don't but I know the  Centeye is suitable for position .I want to kown the x,y velocity of optical flow . It would be greatly helpful if you could let me know on how that the x,y velocity of optical flow so that I can use the data for position . In all, I want to know how to use that optical flow data for position . Please help me for which I would be…See More
Mar 27
donghuiyun6668 is now a member of Embedded Eye
Mar 27
Michael B is now a member of Embedded Eye
Mar 19

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Some Things I have learned about the Stonyman imaging chips 1 Reply

Sometimes, experimentation provides a lot of good answers.After reading the data sheet for the Stonyman imaging chip, I set out to operate one using a PIC 18F2550 microcontroller. I developed a…Continue

Tags: 18F2550, PIC, video, microcontroller, lessons

Started by Joe Watson in Centeye vision chip discussion. Last reply by Joe Watson Apr 6.

Stonyman Power consumption/Characterization in subthreshold regime (3.3 V) 3 Replies

Hi,  Referring to this older discussion:…Continue

Tags: subthreshold, gain, behaviour, Characterization, power

Started by Irene Donati in Centeye vision chip discussion. Last reply by William Huang Mar 31.

centeye optical Flow

Now I am using the Centeye on ATMEGA2560 r3 board ,and download the  example ArduEye_OpticalFlow_Example_v1.ino into the board .I let  the value of OFType=2 and print the filtered_OFX…Continue

Started by donghuiyun6668 in Centeye vision chip discussion Mar 31.

centeye position

I am  trying to use the Centeye Sonyman chip forthe quadrotor position using the optical flow .  I know it can realize  hovering in a place don't but I know the  Centeye is suitable for position .I…Continue

Started by donghuiyun6668 in Centeye vision chip discussion Mar 27.

Blog Posts

Firefly with optics?

Hi,

My project is the identification of animal species, with particular emphasis on black-backed jackal and caracal, with small portable units, similar to trail cameras, but with indentifying processing.

Maximum distance of 10 m would be nice.

I realise that Centeye concentrates on optical flow.

The biggest resolution Centeye sensors appear to be the Firefly 480x256.

Would the Firefly chip be available…

Continue

Posted by Johan Smit on March 4, 2014 at 7:59am

laser distance module - 40meter (120')

Hi,

I am looking for a low cost module to detect fill levels in silos. Red lasers seems to be the best/cheapest solution. (You can buy red laser distance meters at 50 - 100,-USD).

I need a good module for this ... anybody knows where to get it?

Thank You

Peer Hansen

Denmark

Posted by Peer Hansen on December 6, 2013 at 11:48am — 2 Comments

IT project Ideas

Hi guys, I am new in this forum. Does anybody have any IT related project that one could do for University

final year project? I am thinking of automated registry system that will take in photo image directly from the

camera ,process it with arduino  or Pi  then send it to my database. If the photo  Image is the same in the database, the person will be marked present else, the person will be marked  absent. This is an idea but I do

not know where to start and what I…

Continue

Posted by Benson on July 27, 2013 at 5:02am

4 x 4 thermal pixel sensor to add to stonyman eye tracking system

Experiments with using an Omron sensor to add to existing project to increase functionality.

Look at the 4x4 grids and see how eye left/right, up/down, closed/open changes the thermal value in track able amounts.

Next we will try and integrate data output with stonyman data…

Continue

Posted by Clinton McKinnon on June 19, 2013 at 8:50pm

youtube movie

I finally got a good LED strip to place behind the cameras, 300ma at 3.5volts. Makes a lot of difference in the calibration.

I am just playing with simple-solutions to 3D right now. It really is intriguing trying to figure out a non-moving picture way of getting 3D distances. It is really easy with a single item like a pencil on a plain background. But that's cheating. My attempt at subracting the left and right eye, then showing only the pixels with the same +/-3 of 16 brightness…

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Posted by Ron Patey on May 13, 2013 at 9:38pm — 1 Comment

EYE results, 32 levels reduced to 16 levels for the LCD screen.

SO>>> the LCD screen is 160x128, so some of it is not used. Movie updates are about 8 per second.. only EYE number 1 is shown. The text is my diagnostic readout.

The actual pixels are read using the amplifier on the Stonyman at max gain. The PHI times are 1us high/2.5us low (before A/D). The…

Continue

Posted by Ron Patey on May 11, 2013 at 3:21pm — 1 Comment

Updated Stonyman data sheet

We have updated the Stonyman data sheet to include software exemples (in Pseudocode). Version 1.0 is here: Stonyman_Hawksbill_ChipInstructions_Rev10_20130312.pdf

Posted by Geoffrey L. Barrows on March 12, 2013 at 11:57am

ArduEye Aphids first batch now available

We have a small batch of ArduEye Aphids that are now available for serious beta users. An Aphid is essentially a clone of an Arduino Pro Mini but with a Stonyman vision chip and an external 12-bit 100ksps ADC added. For more details and for ordering, please visit the…

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Posted by Geoffrey L. Barrows on March 6, 2013 at 9:30am

Internet of Things (IoT) car traffic counter camera using an ArduEye and COSM

Eager to make a little foray into the "Internet of Things", I decided to experiment with the use of an ArduEye as an "Eye for the IoT". My house is on a fairly busy street, of which I have a good vantage point from my attic home office. A car traffic counter seemed like a good choice…

Continue

Posted by Geoffrey L. Barrows on February 19, 2013 at 5:00pm — 3 Comments

Tracking pin hole image using a vision chp at the bottom of a black box

Track, store & drive two motors in x & y plane untill the real time image on vision chip is tightly aligned with preset neutrl position. Can anyone help me build this unit?

Posted by victor joseph on February 1, 2013 at 12:28am — 1 Comment

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