Contrast Threshold vs Bias
Hi, Do you have a curve or a table indicating the correspondence of Bias ON and OFF to Contrast threshold ON and OFF? For IMX 636? Thanks, Luisa Maya
Compatibility of IMX636 with Custom FPGA Board Interface
Hi Prophesee team, My FPGA board has 22pin interface for Rpi compatible camera: Unlike the KV260 FPGA board, our custom board does not have a pull-up resistor on the RPI_ENABLE (MRSTn) signal. We are connecting IMX636 with FPGA board via 15pin FFC to
Using IMX636 Metavision Starter Kit on KV260 Ubuntu
I have a project where we are trying to record with multiple cameras, including the IMX636 Metavision Starter Kit for the Kria KV260 board. The other cameras have been implemented on the Kria KV260 board, but with the Ubuntu image installed on it. We
Using GenX320 Kria Starter kit with Ubuntu
We are developing an SNN accelerator using the Programmable Logic of the Kria KV260. This is designed to be used with the official Xilinx Ubuntu image and we want to integrate this with GENX320 starter kit. As a first step, we just want to get the example
Event data simulator
Is there an event data simulator in Metavision SDK series or from other resources? I need to simulate event data, like generate event data from videos.
KV260 Login Failure After Flashing Linux Image
Hello Prophesee Team, I am currently flashing a Linux image onto the KV260, following the official tutorial. The image file I used was downloaded from the following link (click "Download Links--Linux image" in the link and get access to the image file):
Maximum Optical Input for EVK4 (IMX636)
Hi, I'm using the EVK4-HD (IMX636) in a laser-based scientific imaging setup. Is there a specified maximum optical input / laser damage threshold for the IMX636? Thanks
Transfer Latency / DMA burst transfer
Hi all, We are experiencing higher latencies under low event-rates (~4ms). I am pretty sure, that the main factor is the DMA burst transfer latency (https://support.prophesee.ai/portal/en/kb/articles/evk-latency ) I have a few questions: 1. Can I change
Building Prophesee genx320 camera drivers on Jetson Nano
Hi, I have a Prophesee genx320 starter kit, It builds and works fine with Raspi5. However, i would like to build on Jetson Nano. Is there any possible way for doing it? Thanks
Low pixel latency for bright LED
We were attempting to measure the Glass-to-glass latency of our Event camera system and noticed an interesting phenomenon. Experimental setup: We generate a timed event by flashing an LED and we also feed the electrical signal into the the external trigger
KV260 Headless Startup – Run embedded_active_marker_3d_tracking without display
Hello, I am working with a Kria KV260 starter kit and an IMX636 camera. Currently, my application works correctly when a display is connected, but I would like to run the system completely headless (without HDMI/display attached). My goal is: power on
IMX636 event rate discrepancy between MIPI and USB
When capturing a scene with the IMX636 via MIPI on the KV260 evaluation kit, we achieve a data rate of approximately 130MB/s. However the event rate is only around 6.5 MEvt/s. When capturing the same scene using the USB version (EVK4), we see around 46
Relationship between bias and physical threshold of EVK3 HD
According to EVK3 HD bias document, physical threshold of positive and negative events are controlled by bias_diff_on and bias_diff_off, and bias_diff is recomanded not to change. I did some experiment on the 3 bias parameters, and finded a stronger relationship
SDK 4.6.2, Ubuntu 22.04 Installation: connection timed out
Hello Prophesee Team, I am using https://docs.prophesee.ai/4.6.2/installation/linux.html#chapter-installation-linux to install SDK 4.6.2 on Ubuntu 22.04, but package manager cannot connect to apt.prophesee.ai:443 user@dell:~/Ubuntu22.04_SDK_462$ uname
Threshold selection for after-processing filters
Hi, I am working with Prophesee event camera and using the following SDK filters in a post-processing pipeline: ActivityNoiseFilterAlgorithm SpatioTemporalContrastAlgorithm (STC) TrailFilterAlgorithm I used the configuration with trail cutting disabled
PYNQ driver for the GenX320 camera
Hello, Since I wasn't able to find a driver that allowed the GenX320 camera to work with the PYNQ framework, I ported the existing drivers to Python for this purpose. You can find the code here. The available example is geared towards my current project,
How to select event data format to generate on GENX320
Hello, I'm using GENX320 and I'd like to generate events in the EVT2.0 format instead of the default EVT 2.1 to use the evt to csv decoding functions from the sdk. I can't find this information on the datasheet and i can't change the data format on metavision
ESP for GenX320 CM2 for RaspberryPi5
I have the GenX320 CM2 connected to my RaspberryPi5 via MIPI. I have read in the docs that the GenX320 is supposed to support all Event Signal Processing (ESP) functionality. However, when trying to get the facilities for Anti-Flicker (AFK), Spatio-Temporal-Contrast
No monitor output after quickstart with IMX636 and kv260
I have set up the IMX636 with the kria board via usb (uart connection) and also it is conenct via ethernet to the router, not the laptop directly since I have no possibility to do this, nevertheless I can ssh into the device no issue or via serial interface.
Error with pybind11 when running metavision_model_3d_tracking.py (EVK4, Python)
Hello！ I’m using an EVK4 event camera with Python and running the example metavision_model_3d_tracking.py together with the “maker” sample. When I run it, the program fails with an error that looks related to the pybind11 module. Could anyone advise how
Using SDK is Python venv / micromamba environment
I have an EVK4 and I am trying to use the SDK in a Python virtual environment. - Hardware: Prophesee EVK4 event-based camera - SDK: Prophesee Metavision SDK, compiled specifically for Python 3.10 (maximum for my ubuntu version) - Environment: Micromamba
Reconstructing Boot Sequence for GENX320
Dear Community, i am trying to use the GENX320 starter Kit on an FPGA, which is why I want to re-construct the boot-up sequence for the MIPI EVT2.1 stream using I2C from the 15-pin adapter. I tried to copy the signals from the Linux drivers (https://github.com/prophesee-ai/linux-sensor-drivers),
Separting the sensor module from the CCAM adapter
I need to mount the EVK3 (VGA) sensor to a cage-mount system. The simplest way I can think of to do this is to separate the sensor and the CCAM adapter board and connect them with a flexible cable. Does any such cable exist?
IMX636 - Anti Flicker Filter (AFK) - Problem
Hello, I am currently working with the IMX636 camera and I am trying to suppress the events generated by the pixels of a computer monitor (60 Hz). My goal is to use the AFK (Anti-Flicker) filter to remove this flickering. To do this, I modified the camera
EVK4 HD Calibration result
Hello, i'm new to event camera and i followed most of the tutorial from ur documentation in order to do a good biases tuning and an intrinsec calibration. I used the metavision calibration pipeline with the chessboard pattern and i manage to get result
Setting a ROI on GENX320MP and masking the hot pixels in that ROI
Hi, I am trying to to mask some hot pixels in a given ROI on the GENX320 MP. I looked at this page : https://support.prophesee.ai/portal/en/kb/articles/how-to-mask-the-effect-of-crazy-hot-pixel I have the coordinates of the pixels i'd like to mask. But
Dataset Structure for YOLOv8 Training Issue:
I'm encountering problems while training a YOLOv8 model using a custom dataset structure. I've followed the steps outlined in Prophesee YOLOv8 tutorial and used the Prophesee ML labeling tool. I am getting the following error: ValueError: num_samples
What are rows in the pixels architecture
In the Youtube video found on the Event-Based Concepts, it is mentioned that all pixels from the same rows are read simultaneously and their corresponding events will share the same timestamp. I have an EVK4 (IMX636) and the datasheet says the sensor
Establishing a time reference
Hello Prophesee Team, Is it possible to establish a time reference with the API (ideally Python)? For example, if one were to exploit the do_time_shifting functionality, could a timestamp simply be taken as the EventsIterator is called? Or is this too
Licensing T&C's for Kria embedded kit
Hello, I have already put in a support ticket regarding the following. I believe that the licensing T&C's are vague when it comes to demonstration purposes. If I create a binary based on a derivative of the embedded marker application code, how would
Building Active markers on kria ubuntu: Sophos hangs on the Kria embedded kit (imx636)
Hello, I am trying to get the event markers code to build & run on the kria ubuntu image, instead of the petalinux image. I am finding that building petalinux via the build tools is time consuming and requires a beefy machine, so I thought maybe switching
Metavision Studio installation
I recently installed Metavision Studio on my Windows system, but I'm encountering two errors when trying to run the application: The first error states: "Windows doesn't find \share\metavision\apps\metavision_studio\internal\client\Metavision studio."
EVT2.1 format problem in FPGA signal capture
Hi, I am using a Kria kv260 setup with an imx636 camera, and I am visualizing the active marker with the /opt/metavision/embedded_active_marker_3d_tracking app. Marker position is smoothly displays on the screen, proof that signal from sensor is correctly
How to program on GenX320 built-in risc-v cores?
Hi, I saw it is possible to flash firmware to the sensor during runtime from GenX320_STM32_V2.0.0 sample code, like `fw_led_tracking` and `fw_esp_wakeup`. Is there any documentation about this feature, which operations are support and how to transfer
How to change camera settings before calling EventsIterator in python
I need some help on the Python interface. I can read teh events from the camera, with events iterator metavision_core.event_io. I also know how to change camera settings using Camera from metavision_sdk_stream. However, I am not able to combine both things
Is it possible to get multiple Entra accounts, for JFrog access, using only one camera's serial code?
I started a project a few months ago using the EVK4, now another individual is looking to take over the project. Is it possible for them to create their own Microsoft Entra ID to access Prophesee resources on JFrog?
Streaming Event data as frames to an external GUI based application using Tkinter
Hello, I am having issues using my EVK4 with a GUI based application I have designed to stream the event-camera and a frame-camera (semi) simultaneously. The script is written in python and uses queues to put event frames and regular frames in separate
How to build metavision C code only onto KV260
Hello I am starting with the compilation flow of the embedded version of Prophesee application onto the Kria KV260 with the imx636. The full compilation flow is OK (FPGA hardware, application code metavision-active-marker-3d-tracking and petalinux build).
imx636 USB 摄像头套件SDK
请问有没有关于USB方式接入的imx636 的EVK的SDK ？如果有，请提供，谢谢。
EVK2 camera not being detected.
Hello, I am trying to use the EVK2 camera using the Dockerfile attached, but i am experimenting some errors when executing metavision_platform_info. The camera is connected to my laptop but inside the container when using this command i am obtaining this
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