This repo contains a quick and dirty Circuit-python port of the Pimoroni PMW3901/PAA5100EJ sensor library.

The example motion.py demonstrates setting up either sensor, and accepts a --board argument to specify which you'd like to use.

May 10, 2024 · PMW3901 / PAA5100JE 2-Dimensional Optical Flow Sensor. Installing. Stable library from PyPi: Just run python3 -m pip install pmw3901; Latest/development library from …

Jun 3, 2023 · An optical flow sensor acts like the sensor in a digital mouse, by measuring the movement of objects using the motion of pixels in a sequence of images. By tracking these changes, the sensor can calculate the relative motion of the surface in two dimensions.

optical_flow_publisher: This executable uses the pmw3901-python library to access sensor data over SPI. The delta X and Y measurements from the sensor are converted to 2D odometry data, which is published periodically using a timer as an Odometry message to the /odom topic and as a transform broadcast to /tf .

Dec 16, 2019 · In this tutorial, we will learn what Optical Flow is, how to implement its two main variants (sparse and dense), and also get a big picture of more recent approaches involving deep learning and promising future directions. What is optical flow? Let us begin with a high-level understanding of optical flow.

4 days ago · Adafruit CircuitPython: The core CircuitPython firmware; Bus Device: Provides abstraction for I2C communication; Register: Simplifies register access on I2C devices; Sources: README.rst 23-33 adafruit_icm20x.py 36-39. Internal Implementation Details. The ICM20X sensors use a bank-based register system, where registers are organized into ...

May 25, 2023 · ST takes flight in this Feather board. The new STM32F405 Feather (video) that we designed runs CircuitPython at a blistering 168MHz – our fastest CircuitPython board ever! We put a ... It’s just a micro controller, there are no sensors or other integrated peripherals needed to actually use a FC. Understood.

Mar 6, 2015 · I've implemented a dense optical flow algorithm and I want to visualize it with following color model. (color denotes direction of flow at some point, intensity denotes length of displacement vector) I've implemented a dirty version of the visualization. colorModel = cv2.imread('../colormodel.png')

Nov 2, 2023 · We will cover steps 1 and 2 in detail and code them from scratch. Steps 3 and 4 are already covered in detail and coded from scratch in part 1. 1. Compute Dense Optical Flow. The first step is...