Search found 3048 matches

by kwagyeman
Mon May 27, 2019 6:41 pm
Forum: General Topics
Topic: Problems with H7 on a Mac
Replies: 5
Views: 2040

Re: Problems with H7 on a Mac

Mmm, when you mention that the board doesn't mount on Mac do you mean that you don't see the flash drive appear and you can't connect via OpenMV IDE? If so, please check that you are using a USB cable with power + data. The flash drive always appears for every os. That is very stable code.
by kwagyeman
Mon May 27, 2019 4:05 pm
Forum: Technical Discussion
Topic: Remote Camera
Replies: 2
Views: 3059

Re: Remote Camera

I'd recommend the Pi to connect to the Web. We really don't have the best stuff for that as it isn't our focus. You can control the camera (multiples in fact) from the Pi.
by kwagyeman
Mon May 27, 2019 4:04 pm
Forum: Project Discussion
Topic: People & Face tracking Robot
Replies: 4
Views: 2533

Re: People & Face tracking Robot

Hi, I've been busy with emails everyday to work on the TF stuff. I completed the port but it's not super awesome yet. Google is working on making their code better. I hope to have more time to work on it in the next week.
by kwagyeman
Mon May 27, 2019 4:02 pm
Forum: Project Discussion
Topic: maestro polulu
Replies: 8
Views: 7118

Re: maestro polulu

STM32 chips can handle 5V inputs without issues. They will not break. They only output 3.3V however.

This is one reason we like STM32 chips. They have I/Os designed for this.

Less returns on parts. Imagine how many broken OpenMV Cams there would be otherwise.
by kwagyeman
Sun May 26, 2019 6:42 pm
Forum: Project Discussion
Topic: Detect a candle fire using OpenMV H7 and FLIR
Replies: 13
Views: 4498

Re: Detect a candle fire using OpenMV H7 and FLIR

Okay, the polarizer may help them. I can't really offer any guarantees. It does work magic when it works however.
by kwagyeman
Sun May 26, 2019 2:56 pm
Forum: Project Discussion
Topic: Detect a candle fire using OpenMV H7 and FLIR
Replies: 13
Views: 4498

Re: Detect a candle fire using OpenMV H7 and FLIR

The polarizer works great when the light from the sun is reflected off a surface at some angle. It doesn't work looking right at the sun. You'd need to specify exactly how your system is setup. If you just need to remove reflected light from the sun the polarizer will work. Otherwise it will not.
by kwagyeman
Sun May 26, 2019 12:16 pm
Forum: General Topics
Topic: OpenMV Problem
Replies: 2
Views: 2680

Re: OpenMV Problem

The white LED flashing is a hardware failure on the camera. If you can't fix this by going through the un-bricking prompts with OpenMV IDE then it could be a bad camera. We do test the cameras before they exit the factory so it's unlikely if it's one of our units (there are clones out there however).
by kwagyeman
Sun May 26, 2019 12:15 pm
Forum: Project Discussion
Topic: Detect a candle fire using OpenMV H7 and FLIR
Replies: 13
Views: 4498

Re: Detect a candle fire using OpenMV H7 and FLIR

Hi, the FLIR Lepton sees heat. As long as the sun isn't behind the candle it will isolate the sun out. You don't need the lens polarizer. That's for visible light. Not thermal.

I'd use the 3.5 if possible, you can set a target temperature rang using it.
by kwagyeman
Fri May 24, 2019 1:40 pm
Forum: Technical Discussion
Topic: help
Replies: 2
Views: 8705

Re: help

You probably should ask a question on what you need help with. The forums are here for specific questions and answers.
by kwagyeman
Thu May 23, 2019 10:27 am
Forum: Project Discussion
Topic: CannyEdge Auto threshold?
Replies: 2
Views: 2152

Re: CannyEdge Auto threshold?

Hi, if you don't need canny all the mean/median/mode/midpoint filters accept adaptive thresholding arguments. These will allow you to find the edges of images using a filters. Morph accepts adaptive thresholding arguments too.
by kwagyeman
Thu May 23, 2019 10:25 am
Forum: General Topics
Topic: Could not start openmvide on raspberry pi
Replies: 6
Views: 2856

Re: Could not start openmvide on raspberry pi

Hi, that would imply your package manager is broken. In that situation... your operating system is seriously unstable. I would Google that particular error and look for a solution.
by kwagyeman
Thu May 23, 2019 2:32 am
Forum: Technical Discussion
Topic: how to capture an image when an external trigger arised
Replies: 12
Views: 3981

Re: how to capture an image when an external trigger arised

Hi, +5v to the pin and -5v to gnd is 10V across the camera's I/O pin. That will destroy the camera. Can you post a schematic of what you are doing?
by kwagyeman
Wed May 22, 2019 9:51 pm
Forum: Technical Discussion
Topic: Exchange the X and Y axis ...
Replies: 6
Views: 2861

Re: Exchange the X and Y axis ...

Hi, if the result is different then that just means you need to do another operation instead.

img.replace(transpose=True, hmirror=True, vflip=True)

Cycle through all eight possible values of True/False above until you get the one you want.
by kwagyeman
Wed May 22, 2019 3:01 am
Forum: Technical Discussion
Topic: Exchange the X and Y axis ...
Replies: 6
Views: 2861

Re: Exchange the X and Y axis ...

Hi, you can do both operations with the same call: img.replace(transpose=True, hmirror=True) The only way to do this faster is to turn on hmirror on the camera sensor. The camera sensor doesn't support transpose however. The camera sensor does support hmirror and vflip however. ... If you want fast ...
by kwagyeman
Mon May 20, 2019 2:42 pm
Forum: General Topics
Topic: Could not start openmvide on raspberry pi
Replies: 6
Views: 2856

Re: Could not start openmvide on raspberry pi

Hi, yeah, I can't reproduce a lot of the issues folks have on the Pi. Are you running raspbian? I've run the IDE on the default raspbian image, completely clean, no updates installed. And it works. I understand there are a lot of OSes you can install on the Pi however. I guess I could test the other...
by kwagyeman
Mon May 20, 2019 1:20 am
Forum: Project Discussion
Topic: Differentiating between colors where one is a subset of the other
Replies: 7
Views: 2167

Re: Differentiating between colors where one is a subset of the other

I'm working on a camera image quality update that will be commited this week. It reduces frame rate a bit but 100% improves the default camera quality.
by kwagyeman
Mon May 20, 2019 1:19 am
Forum: Technical Discussion
Topic: LCD type
Replies: 28
Views: 6278

Re: LCD type

MP merged that PR.
by kwagyeman
Mon May 20, 2019 1:17 am
Forum: General Topics
Topic: Could not start openmvide on raspberry pi
Replies: 6
Views: 2856

Re: Could not start openmvide on raspberry pi

Did you run the setup.sh? The xcb plugin backend is installed by that.
by kwagyeman
Mon May 20, 2019 1:17 am
Forum: Project Discussion
Topic: Creating threshold for color blob tracking.
Replies: 12
Views: 7590

Re: Creating threshold for color blob tracking.

Hi, are you using the H7? And have you controlled the camera exposure? Are you using histogram equalization? Have you set the color thresholds adequately? The find_blobs() method is very robust but you have to put quite a lot more effort in than using the example code to get excellent results. I nee...
by kwagyeman
Mon May 20, 2019 1:14 am
Forum: Technical Discussion
Topic: Transforming an image reflected from a parabolic mirror
Replies: 1
Views: 1452

Re: Transforming an image reflected from a parabolic mirror

Yes, but you will need to code the algorithm in C yourself. See how img_corr() works for inspiration:

https://github.com/openmv/openmv/blob/m ... lib.c#L802
by kwagyeman
Mon May 20, 2019 1:13 am
Forum: General Topics
Topic: Tringale detection
Replies: 2
Views: 1818

Re: Tringale detection

Hi, I had plans for a general find_shapes() method but I am too busy to implement it.
by kwagyeman
Sun May 19, 2019 11:34 am
Forum: General Topics
Topic: It does not focus with Ultra Wide Angle Lens
Replies: 16
Views: 3885

Re: It does not focus with Ultra Wide Angle Lens

Hi, some of our lenses mounts are sometimes not perfectly constructed. So, we need to send you a replacement one. Please email us about getting a replacement lens mount.
by kwagyeman
Sat May 18, 2019 10:37 am
Forum: Project Discussion
Topic: Solved: OpenMV communications with Arduino
Replies: 3
Views: 1881

Re: Solved: OpenMV communications with Arduino

Thanks for posting!

Send a PR to our examples folder to have this included with the IDE if you'd like
by kwagyeman
Sat May 18, 2019 10:18 am
Forum: Project Discussion
Topic: Differentiating between colors where one is a subset of the other
Replies: 7
Views: 2167

Re: Differentiating between colors where one is a subset of the other

Understand that you will be doing stuff involving lists of objects and then lists of objects on top of that.
by kwagyeman
Sat May 18, 2019 10:18 am
Forum: Project Discussion
Topic: Differentiating between colors where one is a subset of the other
Replies: 7
Views: 2167

Re: Differentiating between colors where one is a subset of the other

Hi, thanks for the detailed questions. I'm on a retreat right now and only have cell service for quick periods. I'll be able to provide a longer answer in 2 days. In the meantime. First, go to the sensor routines and change the exposure to be much longer. This will greatly improve the image quality ...
by kwagyeman
Fri May 17, 2019 11:39 am
Forum: General Topics
Topic: Camera extension chord
Replies: 6
Views: 2294

Re: Camera extension chord

Hi, the sign up for our email list is on the home page.
by kwagyeman
Fri May 17, 2019 11:38 am
Forum: General Topics
Topic: LCD Backlight Only
Replies: 10
Views: 3766

Re: LCD Backlight Only

Turning white means the display is powered but nothing getting data. Pictures will help us debug.
by kwagyeman
Fri May 17, 2019 11:37 am
Forum: General Topics
Topic: Global Shutter
Replies: 31
Views: 20732

Re: Global Shutter

Well, you can build a unit with a color sensor. You just have to take our files and switch out the MTV part to.thr color one. Our code then won't line the difference. As long as you keep the res above vga you have a bayer image.
by kwagyeman
Fri May 17, 2019 2:18 am
Forum: Technical Discussion
Topic: FLIR Thermal Camera Person Detection
Replies: 0
Views: 2155

FLIR Thermal Camera Person Detection

Ibrahim made this example script showing off person detection using the FLIR Thermal camera. Works with any FLIR Lepton. import sensor, image, time, os, nn sensor.reset() # Reset and initialize the sensor. sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 sensor.set_framesize(senso...
by kwagyeman
Fri May 17, 2019 2:16 am
Forum: Technical Discussion
Topic: OpenMV Cam M7 Text Recognition
Replies: 7
Views: 3314

Re: OpenMV Cam M7 Text Recognition

It doesn't run on the M7. It runs on the H7 model. If you want to run it on the M7 you have to re-train the network to be smaller.

If you buy the OpenMV Cam H7 we have the demo ready to run and included with the IDE.
by kwagyeman
Thu May 16, 2019 6:35 pm
Forum: General Topics
Topic: LCD Backlight Only
Replies: 10
Views: 3766

Re: LCD Backlight Only

Can you provide more information on the issue? Your first statement implies that the backlight is fine. Note that the backlight can be turned off using PA5 (P6). If you are using that pin in your code it will turn off.
by kwagyeman
Thu May 16, 2019 11:59 am
Forum: Technical Discussion
Topic: OpenMV Cam M7 sensor slanted or off center?
Replies: 3
Views: 1610

Re: OpenMV Cam M7 sensor slanted or off center?

Um, given the tolerance of the lens mount you have to line up perfectly.
by kwagyeman
Thu May 16, 2019 11:54 am
Forum: Technical Discussion
Topic: how to capture an image when an external trigger arised
Replies: 12
Views: 3981

Re: how to capture an image when an external trigger arised

Um, can you also share the code or other details? I don't have an idea what's wrong still. You are putting 10V across the device power supply which is out of spec.
by kwagyeman
Thu May 16, 2019 1:44 am
Forum: Technical Discussion
Topic: OpenMV Cam M7 sensor slanted or off center?
Replies: 3
Views: 1610

Re: OpenMV Cam M7 sensor slanted or off center?

Hi, it's because the lens mount has a little bit of tolerance in it. Since the mount is screwed on it could be slightly off center. If you adjust the set screws you can change how the mount is placed.
by kwagyeman
Wed May 15, 2019 3:23 pm
Forum: General Topics
Topic: IDE v4.0 vs 2.2.0?
Replies: 5
Views: 1903

Re: IDE v4.0 vs 2.2.0?

Mmm, I can't control what finder says.
by kwagyeman
Wed May 15, 2019 2:18 am
Forum: General Topics
Topic: Comment on the documentation
Replies: 2
Views: 1190

Re: Comment on the documentation

Hi, I use that a lot in conversation. It's a tick of mine. You can send a PR to the docs if you want it removed. The docs are on our GitHub.
by kwagyeman
Wed May 15, 2019 2:16 am
Forum: General Topics
Topic: Camera extension chord
Replies: 6
Views: 2294

Re: Camera extension chord

Um, I have the samples. So, I could put the product page up. Um, that's not happening until next week however. I'll send out an email list update once I do this. Then you can preorder.
by kwagyeman
Wed May 15, 2019 1:56 am
Forum: Technical Discussion
Topic: OSError when read BMP
Replies: 1
Views: 1473

Re: OSError when read BMP

Hi, our BMP file reading code is extremely old and needs to be redone. I haven't had time for it yet however. Please generate the BMP file using GIMP and set the BMP file mode in GIMP to RGB565. You can select RGB565 under the advanced information tab.
by kwagyeman
Wed May 15, 2019 1:53 am
Forum: General Topics
Topic: Camera extension chord
Replies: 6
Views: 2294

Re: Camera extension chord

Hi, we have these coming soon. We just paid for 250 of them. Production will take a few weeks.

Image
by kwagyeman
Wed May 15, 2019 1:51 am
Forum: General Topics
Topic: IDE v4.0 vs 2.2.0?
Replies: 5
Views: 1903

Re: IDE v4.0 vs 2.2.0?

That would be a bug. Where do you see that?
by kwagyeman
Wed May 15, 2019 12:42 am
Forum: Technical Discussion
Topic: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7
Replies: 7
Views: 1852

Re: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7

Hi, i mentioned this on another post. But, if you could train and quanitize a tflite network this would accelerate me on this. I have a heavy email load right now which is preventing dev work.
by kwagyeman
Wed May 15, 2019 12:41 am
Forum: Project Discussion
Topic: How to convert model.h5 to model.network for OpenMV
Replies: 6
Views: 1789

Re: How to convert model.h5 to model.network for OpenMV

Sorry, this has gotten bogged down. The code has been pushed to a branch on my github fork here: https://github.com/kwagyeman/openmv/tree/kwabena/add_tf I was about to have mobilnet working. However, google's default memory allocator uses up all of our RAM and is not efficient. It allocates very lay...
by kwagyeman
Wed May 15, 2019 12:37 am
Forum: General Topics
Topic: Do I need to clean camera IC on new OpenMV H7?
Replies: 2
Views: 1927

Re: Do I need to clean camera IC on new OpenMV H7?

Sometimes the sensor has dust on it. Most of the time not anymore.
by kwagyeman
Wed May 15, 2019 12:37 am
Forum: Technical Discussion
Topic: h7 CAN not available
Replies: 17
Views: 8482

Re: h7 CAN not available

The production run of the CAN shields are done. I will get samples soon. I'll send some to Ibrahim so he can write his driver.
by kwagyeman
Wed May 15, 2019 12:36 am
Forum: General Topics
Topic: H7 male vs female headers
Replies: 2
Views: 1161

Re: H7 male vs female headers

The right way is with the female header like in our pictures.

We offer both headers because some customers like to connect the camera via flying wire leads to things.

...

E.g. when we soldered the headers on we got complaints about them being soldered on. So, we stopped doing so.
by kwagyeman
Tue May 14, 2019 12:36 am
Forum: Technical Discussion
Topic: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7
Replies: 7
Views: 1852

Re: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7

It's here: https://github.com/kwagyeman/openmv/tree/kwabena/add_tf There's a new tf module. It runs TensorFlow lite models that use depth wise convolutions and fully connected layers. Relu and pooling are part of the depthwise layers. I have to write an example first for how to train a model, conver...
by kwagyeman
Mon May 13, 2019 8:48 pm
Forum: Technical Discussion
Topic: Overlay FLIR Radiometric Lepton 3.5 IR camera on top of the Cam H7 video image.
Replies: 4
Views: 1558

Re: Overlay FLIR Radiometric Lepton 3.5 IR camera on top of the Cam H7 video image.

Hi, the radiometric feature is supported by our driver and enabled for the example I mentioned. We don't support a color camera and the FLIR at the same time. Folks have asked for this and maybe we might do it in the future. But, our camera driver was written to support one camera at a time only so ...
by kwagyeman
Mon May 13, 2019 8:16 pm
Forum: Technical Discussion
Topic: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7
Replies: 7
Views: 1852

Re: Process for building custom a model, training it, and deploying it to the OpenMV Cam H7

Not really. I can give you a link to my branch the code is on. I don't have a small model to test with yet so it's not working as far as I know. I was trying to get the initial work with mobilenet operational but the memory manager used by google is very inefficient and they are re-writing it now to...
by kwagyeman
Mon May 13, 2019 8:14 pm
Forum: Technical Discussion
Topic: Overlay FLIR Radiometric Lepton 3.5 IR camera on top of the Cam H7 video image.
Replies: 4
Views: 1558

Re: Overlay FLIR Radiometric Lepton 3.5 IR camera on top of the Cam H7 video image.

Hi, we don't support color and the lepton at the same time. You just have the Lepton 3.5 video stream on the image.

If you have the lepton 3.5 and the h7 just run the Examples -> Lepton -> target temperature tracking and you'll be ale to track the object.
by kwagyeman
Sun May 12, 2019 10:43 pm
Forum: Technical Discussion
Topic: h7 CAN not available
Replies: 17
Views: 8482

Re: h7 CAN not available

Here's the design. It's tested and works.

https://github.com/openmv/openmv-boards ... an/can.pdf

Go to advanced search