Multi-Sensor Object Tracking via Image Transformation

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Solution Overview

Problem

Conventional object tracking systems face inefficiencies and increased costs due to computationally costly object detection techniques, making it difficult to track objects across different sensor feeds effectively.

Innovation Solution

A method and system for multiple sensor object tracking that involves receiving feeds from multiple sensors, generating image transformations using image matching techniques, aggregating images, and applying a multiple object tracking model to identify objects, thereby improving efficiency and accuracy by aligning detections across different sensor feeds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional object detection techniques are used for tracking objects across sensor feeds, then object tracking can be performed, but the computational cost increases and efficiency decreases

Engineering Contradiction:
Improveobject tracking accuracyVSAvoidprocessing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system segments the tracking problem by separating detection and tracking functions. Pre-trained detectors identify objects in reference images, while a lightweight tracker follows objects in subsequent frames. This segmentation avoids running costly detectors on every frame, improving efficiency while maintaining tracking accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary object detection in reference images before tracking begins. Objects detected in advance are stored as tracking targets, eliminating the need for repeated detection in every frame. This preliminary action reduces computational load during the tracking phase while preserving detection accuracy.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple sensor feeds are processed independently, then each sensor can be processed efficiently, but tracking objects across different sensor feeds becomes difficult

Engineering Contradiction:
Improveprocessing speedVSAvoidcross-sensor tracking accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system merges multiple sensor feeds by transforming images from different sensors into a unified coordinate system. Detection results from one sensor can be associated with corresponding objects in other sensors through coordinate transformation, enabling consistent multi-sensor tracking while maintaining independent processing efficiency.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system uses coordinate transformation as an intermediary to bridge different sensor feeds. By transforming images and detection results into a common reference frame, the system enables accurate cross-sensor object association without requiring direct complex interactions between multiple sensor processing pipelines.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If object detection is performed on every frame of every sensor feed, then comprehensive object identification is achieved, but computational resources are wasted

Engineering Contradiction:
Improveobject detection accuracyVSAvoidcomputational resource consumption
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The system maintains continuous object tracking through lightweight tracking algorithms that run on every frame, ensuring uninterrupted monitoring. However, full object detection is performed only periodically on reference frames, not continuously on every frame. This approach preserves tracking continuity while eliminating redundant detection computations.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system creates simplified copies of detection results from reference frames and uses these copies for tracking in subsequent frames. Instead of performing full detection on every frame, the tracker uses copied detection information and updates it incrementally, maintaining detection accuracy while reducing computational resource consumption.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20240362798A1Systems and methods for multiple sensor object tracking
Publication Date: 2024.10.31 PALANTIR TECHNOLOGIES INC
  • US20240362798A1 patent drawing
  • US20240362798A1 patent drawing
  • US20240362798A1 patent drawing

AI summary

In some examples, systems and methods for multiple-sensor object tracking are provided. For example, a method includes: receiving a first sensor feed and a second sensor feed from a plurality of sensors respectively. The first sensor feed includes a set of first images. The second sensor feed includes a set of second images. In some examples, the method further includes generating an image transformation based on at least one first image in the set of first images and at least one second image in the set of second images, applying the image transformation to the set of second images, aggregating the set of first images and the set of transformed second images to generate a set of aggregated images, and applying a multiple object tracking model to the set of aggregated images to identify a plurality of objects.