Task-Dependent Image Representations for Object Localization

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Solution Overview

Problem

Existing object localization techniques rely on generic image features, which limits their applicability and efficiency in segmentation tasks, as they are not tailored for specific localization tasks and can be computationally expensive when optimizing for task-dependent similarities.

Innovation Solution

A system and method for object localization that generates task-dependent representations based on relevance scores for an input image, identifying similar images and localizing objects using a classifier and retrieval component, which focuses on probability maps for accurate object location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If generic image features are used for object localization, then the method can be applied to a wide range of tasks, but the accuracy and efficiency for specific localization tasks deteriorates

Engineering Contradiction:
Improveapplicability to different segmentation tasksVSAvoidlocalization accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies local quality by generating task-dependent representations that are specifically tailored to the localization task. Instead of using generic image features uniformly across all tasks, the system creates specialized representations (such as probability maps from trained classifiers) that capture task-specific characteristics. This allows the method to achieve high localization accuracy for specific tasks while maintaining the ability to adapt to different tasks through retraining or reconfiguration of the classifiers.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If task-dependent similarities are learned to improve localization performance, then the accuracy improves, but the computational cost increases

Engineering Contradiction:
Improvelocalization accuracyVSAvoidcomputational cost
Core Design Contradiction:
Measurement precisionVSUse of energy by stationary object

Solution Approach 1:

The patent applies preliminary action by pre-training classifiers on labeled data to generate task-dependent representations before actual localization tasks are performed. The probability maps and task-dependent features are computed in advance through trained models, so that during runtime, the system can quickly retrieve and compare pre-computed representations without performing expensive metric learning or feature extraction. This shifts the computational burden to a preprocessing stage, reducing real-time computational costs while maintaining high accuracy.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If generic image features are used, then the computational process is simpler, but the performance in segmentation tasks deteriorates

Engineering Contradiction:
Improvecomputational process complexityVSAvoidsegmentation performance
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent applies parameter changes by transforming generic image features into task-dependent representations through trained classifiers. The system changes the parameters of the feature representation from generic visual features to task-specific probability maps and relevance scores. This transformation is achieved by adjusting the parameters of trained classifier models to reflect task-specific characteristics, thereby improving segmentation performance without requiring fundamentally complex computational processes.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9158995B2Data driven localization using task-dependent representations
Publication Date: 2015.10.13 GENESEE VALLEY INNOVATIONS LLC
  • US9158995B2 patent drawing
  • US9158995B2 patent drawing
  • US9158995B2 patent drawing

AI summary

A computer implemented method for localization of an object, such as a license plate, in an input image includes generating a task-dependent representation of the input image based on relevance scores for the object to be localized. The relevance scores are output by a classifier for a plurality of locations in the input image, such as patches. The classifier is trained on patches extracted from training images and their respective relevance labels. One or more similar images are identified from a set of images, based on a comparison of the task-dependent representation of the input image and task-dependent representations of images in the set of images. A location of the object in the input image is identified based on object location annotations for the similar images.