US 2026/0212684 A1 · LOW POWER PROXIMITY-BASED PRESENCE DETECTION USING OPTICAL FLOW

Abstract

In various examples, low power proximity based threat detection using optical flow for vehicle systems and applications are provided. Some embodiments may use a tiered framework that uses sensor fusion techniques to detect and track the movement of a threat candidate, and perform a threat classification and/or intent prediction as the threat candidate approaches approach. Relative depth indications from optical flow, computed using data from image sensors, can be used to initially segment and track a moving object over a sequence of image frames. Additional sensors and processing may be brought online when a moving object becomes close enough to be considered a higher risk threat candidate. A threat response system may generate a risk score based on a predicted intent of a threat candidate, and when the risk score exceeds a certain threshold, then the threat response system may respond accordingly based on the threat classification and/or risk score.

Claims20

Dependent claims

A system comprising:

one or more processing units to:
detect one or more moving subjects in an environment based at least on optical flow data generated from image sensor data depicting the environment;
determine a distance of the one or more moving subjects from an ego-machine based at least on scaled depth data computed from the optical flow data;
generate, using a classification model that receives as input the image sensor data and the distance, a classification for the one or more moving subjects, the classification comprising an intent prediction for at least one of the one or more moving subjects;
and
perform one or more response operations based at least on the predicted intent.

3 more elements

Dependencies are inferred from the claim text.

Low power proximity-based presence detection using optical flow

Life of this patent

Low power proximity-based presence detection using optical flow

Life of this patent

Abstract

Claims20