Search found 24 matches

by kidswong999
Fri Aug 03, 2018 3:32 am
Forum: Technical Discussion
Topic: resize the framebuffer with copy function
Replies: 2
Views: 56

resize the framebuffer with copy function

Hi,

Can I use img.copy(roi = [0,0,10,10], copy_to_fb=True) to resize the framebuffer?

the error is:

OSError: Cannot copy to fb!

I am using the OpenMV3 F7 with firmware 3.0.0

Thanks. :D
by kidswong999
Mon Jul 30, 2018 12:02 am
Forum: Technical Discussion
Topic: lshift and rshift in nn_quantizer
Replies: 4
Views: 85

Re: lshift and rshift in nn_quantizer

Thanks. :D
by kidswong999
Sun Jul 29, 2018 10:45 pm
Forum: Technical Discussion
Topic: lshift and rshift in nn_quantizer
Replies: 4
Views: 85

Re: lshift and rshift in nn_quantizer

I will study this code again, in fact, it is really difficult to understand.

I also read the paper:
Efficient Neural Network Kernels for Arm Cortex-M CPUs
Https://arxiv.org/abs/1801.06601

But it seems that I don't not find the answer.
by kidswong999
Sun Jul 29, 2018 10:09 pm
Forum: Technical Discussion
Topic: lshift and rshift in nn_quantizer
Replies: 4
Views: 85

lshift and rshift in nn_quantizer

Hi, When quantifying my own model, I was confused about what l_shift and r_shift. I have converted the float32 number to an 8-bit q format fix-number. and get int_bits and dec_bits of weights and bias. maybe 2 numbers is enough: weights_dec_bits and bias_dec_bits. (weights_int_bits = 7-weights_dec_b...
by kidswong999
Sat Jul 07, 2018 9:35 am
Forum: Technical Discussion
Topic: models supported by CMSIS-NN?
Replies: 1
Views: 81

models supported by CMSIS-NN?

Hi, in this blog:https://openmv.io/blogs/news/deep-learning-on-a-cortex-m7-camera-3ma-deep-learning Note that you should keep in mind the CMSIS-NN library and conversion scripts have limitations on the number and types of supported layers - so your model should be simple. I know that lenet is small,...
by kidswong999
Sat Jun 02, 2018 11:59 pm
Forum: Technical Discussion
Topic: guide to make cnn classify module
Replies: 1
Views: 112

guide to make cnn classify module

Is there a detailed tutorial on CNN? I want to classify my two cats.

Train module in tensorflow, and export to OpenMV.

I have a lot of their photos.

Thanks ;)
by kidswong999
Thu May 31, 2018 2:30 am
Forum: General Topics
Topic: face_recognition.py example not working
Replies: 6
Views: 697

Re: face_recognition.py example not working

I met the same issue...

firmwave version 2.9.0, windows 10
I have already saved the file according to the steps.
It says: AttributeError: 'Image' object has no attribute 'mask_ellipse'

But on firmware version 2.7.0 , this example is ok.
by kidswong999
Sun May 27, 2018 6:47 am
Forum: Technical Discussion
Topic: mjpeg_streaming_ap not support ios devices
Replies: 2
Views: 116

mjpeg_streaming_ap not support ios devices

Hi, I am using mjpeg_streaming_ap example, desktop compoter (windows): chrome is OK. iOS(iPhone 7): chrome just got a download file, and can not download. Safari could only got one picture, not streaming. Android(XiaoMi): chrome and buildin expoler are both OK. Maybe there are problems in iOS about ...
by kidswong999
Tue May 15, 2018 9:01 am
Forum: Technical Discussion
Topic: only one device connected to the AP(wifi shield)
Replies: 3
Views: 208

only one device connected to the AP(wifi shield)

When I was running the MJPEG Streaming AP program, I found that there was only one device connected to the AP. If I wanted the phone and the PC to connect to the AP at the same time, I would be unable to connect to the network.

How to solve it? :D
by kidswong999
Wed Apr 11, 2018 4:50 am
Forum: Technical Discussion
Topic: draw_rectangle color mistake
Replies: 3
Views: 406

draw_rectangle color mistake

Hello, in the IDE, the border of the draw_rectangle function is not quite right. Firmware Version: 2.7.0 IDE Version: 1.8.1 import sensor, image, time sensor.reset() sensor.set_pixformat(sensor.RGB565) sensor.set_framesize(sensor.QVGA) sensor.skip_frames(time=2000) while(True): img=sensor.snapshot()...
by kidswong999
Mon Mar 19, 2018 10:27 pm
Forum: General Topics
Topic: lens_to_camera_mm in telephoto-lens
Replies: 1
Views: 265

lens_to_camera_mm in telephoto-lens

Hi, I am using mavlink_apriltags_landing_target example with telephoto-lens, but I don't know the lens_to_camera_mm parameter.
Could you provide some information about that?

https://openmv.io/collections/lenses/pr ... photo-lens
by kidswong999
Sat Dec 16, 2017 11:17 pm
Forum: General Topics
Topic: OpenMV M7 Fritzing part
Replies: 3
Views: 1079

Re: OpenMV M7 Fritzing part

by kidswong999
Sat Dec 16, 2017 11:16 pm
Forum: General Topics
Topic: a beautiful openmv fritzing part
Replies: 3
Views: 824

a beautiful openmv fritzing part

Hi, I make a beautiful openmv fritzing part:

https://github.com/SingTown/OpenMV-fritzing
openmv3.png
openmv3.png (192.38 KiB) Viewed 824 times
by kidswong999
Wed Aug 09, 2017 7:31 am
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

Re: fps is slow when OpenMV boot from file system

iabdalkader wrote:
Tue Aug 08, 2017 12:58 pm
@kidswong999

Please test the attached FW let me know if it fixes the issue.
Hi, in fact, I don't know how to download bin file. :D
Could you send a dfu file?

Thanks.
by kidswong999
Tue Aug 08, 2017 2:43 am
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

Re: fps is slow when OpenMV boot from file system

kwagyeman wrote:
Tue Aug 08, 2017 12:23 am
92 FPS... make sure to disable the frame buffer otherwise you get 30 FPS...
But when boot main.py from file system, how to disable framebuffer?
by kidswong999
Mon Aug 07, 2017 10:31 pm
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

Re: fps is slow when OpenMV boot from file system

kwagyeman wrote:
Mon Aug 07, 2017 10:14 pm
Can you copy the print out text here?
by kidswong999
Mon Aug 07, 2017 9:48 pm
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

Re: fps is slow when OpenMV boot from file system

Yeah, I know what's wrong... Your getting serial characters overwriting each other... Please add "timeout_char = 1000" to the UART constructor as another argument. Still no work, I added "timeout_char = 1000", still 29fps. import sensor, image, time from pyb import UART uart = UART(3, 115200, timeo...
by kidswong999
Mon Aug 07, 2017 8:13 pm
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

Re: fps is slow when OpenMV boot from file system

Yes,the board is an M7. :shock:
by kidswong999
Mon Aug 07, 2017 5:51 am
Forum: Technical Discussion
Topic: fps is slow when OpenMV boot from file system
Replies: 17
Views: 4408

fps is slow when OpenMV boot from file system

Hi, I run the code. IDE: 1.6.0; firmware: 2.4.1; # Hello World Example # # Welcome to the OpenMV IDE! Click on the green run arrow button below to run the script! import sensor, image, time from pyb import UART uart = UART(3, 115200) sensor.reset() # Reset and initialize the sensor. sensor.set_pixfo...
by kidswong999
Sat Jun 03, 2017 12:11 am
Forum: Technical Discussion
Topic: WINC1500 shield download firmware
Replies: 1
Views: 820

WINC1500 shield download firmware

Hello. I made a winc1500 shield myself. But I can't download the firmware. I use a ttl-USB and run .\download_all.bat UART I followed the link http://community.atmel.com/forum/atwinc1500-firmware-upgrade BUT the Error is: Invalid chip ID. Could you help me? Thanks. :) ERROR MESSAGE Downloading Image...
by kidswong999
Tue May 09, 2017 12:35 am
Forum: Technical Discussion
Topic: Using machine.I2C
Replies: 6
Views: 1689

Re: Using machine.I2C

Hello, what is the difference between machine.I2C and pyb.I2C?
why there are two class, but one thing? :?:
by kidswong999
Sun Apr 02, 2017 1:28 pm
Forum: Technical Discussion
Topic: esp32 as wifi&ble shield
Replies: 3
Views: 1151

esp32 as wifi&ble shield

Hello,

How about replacing winc1500 by esp32?

I saw that 135 Mbps UDP sustained throughput. Max data rate of 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g, and 11 Mbps@11b

http://espressif.com/en/products/hardwa ... 2/overview

esp32 is cheaper and more powerful.

Thanks

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