JeVois Tech Zone - Recent questions without answers

How to solve this Error: ModuleNotFoundError: No module named 'torch._C'

Sat, 14 Aug 2021 09:50:30 +0000

Hello. I have the following problem:

In my Python Software I use : from detecto import core, utils, visualize

After this I imediately receive this error:

ERR Log::warnAndIgnoreException: Caught exception from the Python interpreter:

ERR Log::warnAndIgnoreException: Python traceback (most recent calls last):

ERR Log::warnAndIgnoreException: File /jevois/modules/Dambrowsky/PythonTest/PythonTest.py

ERR Log::warnAndIgnoreException: Line 166, in process:

ERR Log::warnAndIgnoreException: File /usr/lib/python3.7/site-packages/detecto/core.py

ERR Log::warnAndIgnoreException: Line 4, in <module>:

ERR Log::warnAndIgnoreException: File /usr/lib/python3.7/site-packages/torch/__init__.py

ERR Log::warnAndIgnoreException: Line 79, in <module>:

ERR Log::warnAndIgnoreException: ModuleNotFoundError: No module named 'torch._C'

I have installed the following Libraries:

hell pip list

Package Version

--------------------- ---------------

arrow 0.10.0

asn1crypto 0.24.0

async-timeout 3.0.1

attrs 18.2.0

backcall 0.1.0

beautifulsoup4 4.5.3

bitstring 3.1.5

cached-property 1.4.0

cbor 1.0.0

certifi 2018.11.29

cffi 1.11.2

characteristic 14.3.0

chardet 3.0.4

constantly 15.1.0

cryptography 2.3.1

cycler 0.10.0

daemonize 2.4.7

DataProperty 0.29.1

decorator 4.0.11

detecto 1.2.1

humanize 0.5.1

idna 2.8

iowait 0.2

ipython-genutils 0.2.0

json-schema-validator 2.4.1

jsonmodels 2.4

jsonschema 2.5.1

kiwisolver 1.3.1

Logbook 1.4.3

lxml 4.3.3

markdown2 2.3.6

matplotlib 3.4.2

mbstrdecoder 0.2.2

more-itertools 4.0.1

msgpack 0.6.1

multidict 4.5.2

numpy 1.16.3

pandas 1.1.0

path.py 10.5

pathtools 0.1.2

pathvalidate 0.16.0

pexpect 4.6.0

pickleshare 0.7.4

Pillow 8.3.0

pip 19.1

ply 3.11

posix-ipc 1.0.4

protobuf 3.6.0

psutil 5.6.2

ptyprocess 0.5.1

py 1.8.0

py-ubjson 0.12.0

pycparser 2.19

pycrypto 2.6.1

pyinotify 0.9.6

pylibdmtx 0.1.9

pylru 1.0.9

pyparsing 3.0.0b2

pytablereader 0.15.0

python-dateutil 2.8.0

PyTrie 0.3.1

pytz 2018.9

PyYAML 4.2b4

requests 2.21.0

scandir 1.9.0

schedule 0.6.0

scipy 1.3.0

see 1.4.1

semver 2.8.1

setuptools 41.0.1

sh 1.12.14

simplegeneric 0.8.1

simplejson 3.11.1

SimpleSQLite 0.15.0

six 1.12.0

sortedcontainers 2.1.0

tabledata 0.0.5

tempora 1.7

torch 1.1.0

torchvision 0.3.0a0+bbd363c

tqdm 4.61.2

traitlets 4.3.2

typepy 0.0.20

ujson 1.35

urllib3 1.24.2

uvloop 0.12.2

validators 0.12.2

visitor 0.1.3

Whoosh 2.7.4

xlrd 1.0.0

It looks like the Library torch._C is not available. Is there anybody who can help me?

Thank you very much.

Peter Dambrowsky

How to uninstall a Library from the Linux partition of the microSD

Tue, 10 Aug 2021 07:26:15 +0000

When I have installed a Library with the Inventor using a .whl file (it is functioning only with the inventor under Ubuntu) and I want do delete it later, how do I have to do it. Is there a special shell command? I tried to do it directly under usr/lib/python3.7/site-packages on the microSD Linux partition. But here I could see, that I have not the rights to delete something.

An answer would realy help me.

Best regards

Peter

What are the units of the absolute exposure "absexp" setting for the camera?

Fri, 23 Oct 2020 21:18:44 +0000

Is absolute exposure (absexp) in units of uS (microseconds) or 100uS? I see some cameras use 100uS but I can't confirm if this is true for JeVois.

absexp can be set from 1 to 1259 in JeVois Inventor. I looked at the datasheet for the camera sensor (ov7725 in my case) but I can't relate this back to any numbers I see there such as "Electronic Exposure Up To 510:1". Thanks!

camera fails to connect to mac inventor

Sat, 09 May 2020 22:12:43 +0000

I have two new JeVois cameras and I cannot get either one of them to connect to my MacBook Pro workstation with Inventor. I have the latest SD flashed and have the camera connected to separate power with more than enough power. The camera boots up and the indicator light is green and then turns orange. I am using a JeVois Y cable with USB B for the power and micro USB plugged into a micro USB to USB B adapter to connect with the Mac. Inventor is up and running when I plug in the camera to the Mac, waiting for a connection. But the camera never connects. Photobooth and StreamLabs OBS both do not see a second camera other than the laptop built in camera. What other troubleshooting can I do?

Actual FOV of standard lens

Sat, 04 Apr 2020 22:54:42 +0000

I have an A33 Jevois camera with standard lens. I'm trying to use this camera for mapping/SLAM purposes, so I need to get FOV relatively accurately. Checking online, there appears to be conflicting specs on this, where the FOV is stated as either 60^o or 65^o (here http://jevois.org/doc/Lenses.html and here https://www.jevoisinc.com/pages/hardware).

I decided to take the camera to the Vicon motion capture room to see if I could validate either of these figures.

I calculated the FOV by determining the horizontal length a known object was in the camera image, then knowing exactly how far away the camera was from that object, I could calculate the FOV. The figure I kept realising was just shy of 51^o (well short of the 60^o - 65^o).

Have you guys done any testing to determine the effective FOV of this device?

Does the jevois-inventor provides the feature to flash the current time off host computer

Fri, 06 Mar 2020 17:09:45 +0000

Hello, I am looking for a python program to take the date and time from the host computer and send it to the Jevois A33 cam ( like I can do it in the console with the comand "date 2020.03.06-15:30:00".

I want to do this with a program line in Python on ervery start of the Cam.

Please help me.

Regards

Peter

Bug report, last take

Fri, 04 Jan 2019 23:19:52 +0000

PLEASE, read again my message TILL THE END (not only first line) !!!

And you will find that JeVois 1.11.0 host doesn't work on Ubuntu 18.04 TOO !!! And I was trying to use YOUR binaries, NOT custom build = I didn't recompile anything.

AND It doesn't work on Ubuntu 16.04 with YOUR binaries.

AND, OpenCV package for Ubuntu 18.04 in your repo is still in beta state (YOU FORGOT TO REPLACE IT)

AND again, I can provide you remote access to my hardware (Ubuntu 18.04 + Ubuntu 16.04, SSH, VNC, xRDP etc) with physical webcam attached.

WBR, HNY

Make an "apt-get install" on Jevois

Thu, 03 Jan 2019 08:21:51 +0000

Hello,
I need to use a libdmtx on my JeVois. On ubuntu (I'm on ubuntu 18.4) I can easly get it by using "sudo apt-get install libdmtx0a". With that library, I can use pylibdmtx in order to read data matrix with Jevois.
On my laptop it work perfectly but in JeVois, I just need this library. I tried this tutorial : http://jevois.org/tutorials/ProgrammerDlib.html but it don't know how to compile libdmtx with JeVois to create a shared library that pylibdmtx can read.
Maybe there is a way of compiling libdtmx on my computer and just copy/paste the libdmtx.so on the JeVois?

I tried with :
wget https://sourceforge.net/projects/libdmtx/files/libdmtx/0.7.4/libdmtx-0.7.4.tar.bz2
git clone git://libdmtx.git.sourceforge.net/gitroot/libdmtx/libdmtx

JeVois 1.10.0 Bug reports, full story, part 4

Tue, 27 Nov 2018 22:33:28 +0000

JeVois 1.10.0 Bug reports, full story, part 4

I swithed again to Ubuntu 18.04, un-commented line 467 in Engine.C file and rebuilded JeVois.

Here are reports:

Ubuntu LTS 18.04, jevois-pached-18.04.txt

user@18-04:~$ jevois-daemon --loglevel=debug
DBG ManagerImpl::addComponent: Adding Component [serial]
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
ERR VideoMapping::videoMappingsFromStream: In file /jevois/config/videomappings.cfg:518: No .so|.py found for JeVois/FaceDetector -- SKIPPING.

[skiped 59 lines - DBG VideoMapping::videoMappingsFromStream: OUT: *]

INF Engine::postInit: Loaded 60 vision processing modes.
INF Engine::postInit: Initalizing Python...
INF Engine::postInit: Starting camera device /dev/video0
DBG Camera::Camera: Input 0 [Camera 1] is a camera sensor
INF Camera::Camera: [9] V4L2 camera /dev/video0 card Integrated Camera: Integrated C bus usb-0000:02:03.0-1
DBG Camera::Camera: Format 0 is [YUYV 4:2:2] fcc 0x56595559 [YUYV]
DBG Camera::Camera: Format 1 is [Motion-JPEG] fcc 0x47504a4d [MJPG]
INF Engine::postInit: Using display for video output
DBG Camera::run: run() thread ready
INF Engine::setFormatInternal: OUT: YUYV 640x300 @ 60fps CAM: YUYV 320x240 @ 60fps MOD: JeVois:DemoSaliency C++
DBG Camera::setFormat: Requesting video format 320x240 YUYV
INF Camera::setFormat: Camera set video format to 320x240 YUYV
DBG Camera::setFormat: Querying/setting crop rectangle not supported
DBG Camera::setFormat: Set framerate to 60 fps
DBG VideoDisplay::setFormat: Allocated 2 buffers
INF Engine::setFormatInternal: Instantiating dynamic loader for /jevois/modules/JeVois/DemoSaliency/DemoSaliency.so
DBG ParameterRegistry::addParameter: Added Parameter [serprec]
DBG ParameterRegistry::addParameter: Added Parameter [serstyle]
DBG ParameterRegistry::addParameter: Added Parameter [serstamp]
DBG ParameterRegistry::addParameter: Added Parameter [sermark]
DBG ParameterRegistry::addParameter: Added Parameter [cweight]
DBG ParameterRegistry::addParameter: Added Parameter [iweight]
DBG ParameterRegistry::addParameter: Added Parameter [oweight]
DBG ParameterRegistry::addParameter: Added Parameter [fweight]
DBG ParameterRegistry::addParameter: Added Parameter [mweight]
DBG ParameterRegistry::addParameter: Added Parameter [centermin]
DBG ParameterRegistry::addParameter: Added Parameter [deltamin]
DBG ParameterRegistry::addParameter: Added Parameter [smscale]
DBG ParameterRegistry::addParameter: Added Parameter [mthresh]
DBG ParameterRegistry::addParameter: Added Parameter [fthresh]
DBG ParameterRegistry::addParameter: Added Parameter [msflick]
DBG ParameterRegistry::addParameter: Added Parameter [usevel]
DBG ParameterRegistry::addParameter: Added Parameter [procnoise]
DBG ParameterRegistry::addParameter: Added Parameter [measnoise]
DBG ParameterRegistry::addParameter: Added Parameter [postnoise]
INFO: JeVois 1.10.0
INFO: Linux version 4.15.0-38-generic
FTL SysInfo::getFileString: Cannot read file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: FTL SysInfo::getFileString: Cannot read file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: Unsupported command [info]
INF Engine::setFormatInternal: Module [DemoSaliency] loaded, initialized, and ready.
DBG Component::init: Initialized.
DBG Camera::streamOn: Turning on camera stream
DBG VideoBuffers::VideoBuffers: [9:camera] Reqbufs for 5 buffers returned 5 buffers
DBG VideoBuffers::VideoBuffers: [9:camera] Added mmap'd buffer 0 of size 153600
DBG VideoBuffers::VideoBuffers: [9:camera] Added mmap'd buffer 1 of size 153600
DBG VideoBuffers::VideoBuffers: [9:camera] Added mmap'd buffer 2 of size 153600
DBG VideoBuffers::VideoBuffers: [9:camera] Added mmap'd buffer 3 of size 153600
DBG VideoBuffers::VideoBuffers: [9:camera] Added mmap'd buffer 4 of size 153600
INF Camera::streamOn: 5 buffers of 153600 bytes allocated
DBG Camera::streamOn: All buffers queued to camera driver
DBG Camera::streamOn: Device stream on
DBG Camera::streamOn: Streaming is on
INF READY JEVOIS 1.10.0

[nothing happened here!]

exit
quit
^C
Killed

user@18-04:~$ gdb jevois-daemon
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from jevois-daemon...done.
(gdb) run
Starting program: /usr/bin/jevois-daemon
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffd672b700 (LWP 2277)]
[New Thread 0x7fffd5f2a700 (LWP 2278)]
[New Thread 0x7fffd5729700 (LWP 2279)]
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
ERR VideoMapping::videoMappingsFromStream: In file /jevois/config/videomappings.cfg:518: No .so|.py found for JeVois/FaceDetector -- SKIPPING.
INF Engine::postInit: Loaded 60 vision processing modes.
INF Engine::postInit: Initalizing Python...
INF Engine::postInit: Starting camera device /dev/video0
[New Thread 0x7fffce194700 (LWP 2280)]
INF Camera::Camera: [9] V4L2 camera /dev/video0 card Integrated Camera: Integrated C bus usb-0000:02:03.0-1
INF Engine::postInit: Using display for video output
[New Thread 0x7fffcd4bd700 (LWP 2281)]
[New Thread 0x7fffcccbc700 (LWP 2282)]
INF Engine::setFormatInternal: OUT: YUYV 640x300 @ 60fps CAM: YUYV 320x240 @ 60fps MOD: JeVois:DemoSaliency C++
INF Camera::setFormat: Camera set video format to 320x240 YUYV
INF Engine::setFormatInternal: Instantiating dynamic loader for /jevois/modules/JeVois/DemoSaliency/DemoSaliency.so
INFO: JeVois 1.10.0
INFO: Linux version 4.15.0-38-generic
FTL SysInfo::getFileString: Cannot read file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: FTL SysInfo::getFileString: Cannot read file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: Unsupported command [info]
INF Engine::setFormatInternal: Module [DemoSaliency] loaded, initialized, and ready.
INF Camera::streamOn: 5 buffers of 153600 bytes allocated
INF READY JEVOIS 1.10.0

[nothing happened here!]

^C
Thread 1 "jevois-daemon" received signal SIGINT, Interrupt.
0x00007ffff303a9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5555559b8f78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
88 ../sysdeps/unix/sysv/linux/futex-internal.h: No such file or directory.
(gdb) quit

===

Than I switched back to Ubuntu 16.04 and tryed to rebuild jevoisbase-host

JeVois 1.10.0 Bug reports, full story, part 3

Tue, 27 Nov 2018 22:31:53 +0000

JeVois 1.10.0 Bug reports, full story, part 3

Here are reports:

Ubuntu LTS 16.04, jevois-pached-16.04.txt

user@MS-7592:~/jevois-1.10.0$ sudo jevois-daemon --loglevel=debug
DBG ManagerImpl::addComponent: Adding Component [serial]
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
ERR VideoMapping::videoMappingsFromStream: In file /jevois/config/videomappings.cfg:518: No .so|.py found for JeVois/FaceDetector -- SKIPPING.

[skiped 59 lines - DBG VideoMapping::videoMappingsFromStream: OUT: *]

[skiped lines - DBG ParameterRegistry::addParameter: Added Parameter [*]]

INFO: JeVois 1.10.0
INFO: Linux version 4.15.0-38-generic
FTL SysInfo::getFileString: Cannot read file: /sys/class/thermal/thermal_zone0/temp
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: FTL SysInfo::getFileString: Cannot read file: /sys/class/thermal/thermal_zone0/temp
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: Unsupported command [info]
INF Engine::setFormatInternal: Module [DemoSaliency] loaded, initialized, and ready.
DBG Component::init: Initialized.
DBG Camera::streamOn: Turning on camera stream
DBG VideoBuffers::VideoBuffers: [10:camera] Reqbufs for 5 buffers returned 5 buffers
DBG VideoBuffers::VideoBuffers: [10:camera] Added mmap'd buffer 0 of size 153600
DBG VideoBuffers::VideoBuffers: [10:camera] Added mmap'd buffer 1 of size 153600
DBG VideoBuffers::VideoBuffers: [10:camera] Added mmap'd buffer 2 of size 153600
DBG VideoBuffers::VideoBuffers: [10:camera] Added mmap'd buffer 3 of size 153600
DBG VideoBuffers::VideoBuffers: [10:camera] Added mmap'd buffer 4 of size 153600
INF Camera::streamOn: 5 buffers of 153600 bytes allocated
DBG Camera::streamOn: All buffers queued to camera driver
DBG Camera::streamOn: Device stream on
DBG Camera::streamOn: Streaming is on
INF READY JEVOIS 1.10.0
DBG Camera::run: Captured image 0 ready for processing
DBG Camera::get: Camera image 0 handed over to processing
DBG VideoDisplay::get: Empty image 0 handed over to application code for filling
DBG Camera::done: Image 0 freed by processing
Illegal instruction (core dumped)

user@MS-7592:~/jevois-1.10.0$ sudo gdb jevois-daemon
GNU gdb (Ubuntu 8.2-0ubuntu1~16.04.1) 8.2
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from jevois-daemon...done.
(gdb) run
Starting program: /usr/bin/jevois-daemon
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffd87d3700 (LWP 4695)]
[New Thread 0x7fffd7fd2700 (LWP 4696)]
[New Thread 0x7fffd77d1700 (LWP 4697)]
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
ERR VideoMapping::videoMappingsFromStream: In file /jevois/config/videomappings.cfg:518: No .so|.py found for JeVois/FaceDetector -- SKIPPING.
INF Engine::postInit: Loaded 60 vision processing modes.
INF Engine::postInit: Initalizing Python...
INF Engine::postInit: Starting camera device /dev/video0
[New Thread 0x7fffcffff700 (LWP 4698)]
INF Camera::Camera: [10] V4L2 camera /dev/video0 card UVC Camera (046d:0825) bus usb-0000:00:1d.7-4
INF Engine::postInit: Using display for video output
INF Engine::setFormatInternal: OUT: YUYV 640x300 @ 60fps CAM: YUYV 320x240 @ 60fps MOD: JeVois:DemoSaliency C++
INF Camera::setFormat: Camera set video format to 320x240 YUYV
INF Engine::setFormatInternal: Instantiating dynamic loader for /jevois/modules/JeVois/DemoSaliency/DemoSaliency.so
INFO: JeVois 1.10.0
INFO: Linux version 4.15.0-38-generic
FTL SysInfo::getFileString: Cannot read file: /sys/class/thermal/thermal_zone0/temp
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: FTL SysInfo::getFileString: Cannot read file: /sys/class/thermal/thermal_zone0/temp
ERR /jevois/modules/JeVois/DemoSaliency/script.cfg:3: Unsupported command [info]
INF Engine::setFormatInternal: Module [DemoSaliency] loaded, initialized, and ready.
INF Camera::streamOn: 5 buffers of 153600 bytes allocated
INF READY JEVOIS 1.10.0
[New Thread 0x7fffcb405700 (LWP 4699)]
[New Thread 0x7fffcac04700 (LWP 4700)]
[New Thread 0x7fffca403700 (LWP 4701)]
[Thread 0x7fffcac04700 (LWP 4700) exited]
[New Thread 0x7fffc9c02700 (LWP 4702)]
[Thread 0x7fffca403700 (LWP 4701) exited]
[New Thread 0x7fffc9c02700 (LWP 4703)]
[Thread 0x7fffc9c02700 (LWP 4702) exited]
[New Thread 0x7fffca403700 (LWP 4704)]

Thread 10 "jevois-daemon" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffc9c02700 (LWP 4703)]
0x00007fffceea0ad5 in env_c_lowpass_5_y_dec_y_fewbits_optim (src=<optimized out>, w=160, h=240, dst=<optimized out>, h2=<optimized out>)
at /home/jv/pack/jevoisbase/src/Components/Saliency/env_c_math_ops.c:104
104 *dst++ = (src[ 0] * 2 + src[ w]) / 3;
(gdb) quit

===

to be continued...

JeVois 1.10.0 Bug reports, full story, part 2

Tue, 27 Nov 2018 22:18:51 +0000

JeVois 1.10.0 Bug reports, full story, part 2

As you could see in part 1, there was two different types of errors.

So, I decided to rebuild JeVois 1.10.0 from sources on Ubuntu LTS 16.04 enabling debug loglevel

Here are reports:

Ubuntu LTS 16.04, jevois-rebuilded-16.04.txt

user@MS-7592:~$ sudo jevois-daemon --loglevel=debug
DBG ManagerImpl::addComponent: Adding Component [serial]
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
ERR VideoMapping::videoMappingsFromStream: In file /jevois/config/videomappings.cfg:518: No .so|.py found for JeVois/FaceDetector -- SKIPPING.

[skiped 59 lines - DBG VideoMapping::videoMappingsFromStream: OUT: *]

user@MS-7592:~$ sudo gdb jevois-daemon
GNU gdb (Ubuntu 8.2-0ubuntu1~16.04.1) 8.2
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.

Thread 1 "jevois-daemon" received signal SIGFPE, Arithmetic exception.
0x00007ffff7a72ff7 in jevois::Camera::streamOn (this=0x726ff0) at /home/user/jevois-1.10.0/src/jevois/Core/Camera.C:347
347 nbuf = (4U * 1024U * 1024U) / framesize;
(gdb)

===

After reporting this (http://jevois.org/qa/index.php?qa=2387&qa_1=1-10-host-bug-report), I recieved a comment:

"I see, we disabled auto-loading the saliency demo module on startup in 1.10 to speedup startup a bit, but indeed that is a mistake for the host. I think the culprit is here:

https://github.com/jevois/jevois/blob/master/src/jevois/Core/Engine.C try un-commenting line 467."

So, I un-commented line 467 in Engine.C file and rebuilded it again on Ubuntu 16.04. But...

to be continued...

ROS integration/support

Tue, 14 Mar 2017 05:26:28 +0000

Any plans to integrate with ROS? I think both projects and developers will benefit from ROS <-> JeVois