Object Detection Using Stochastic Optimization on Probability Maps

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Solution Overview

Problem

Conventional object detection methods in high-definition images are computationally challenging and inefficient, leading to reduced accuracy when images are resized for faster processing, necessitating an intelligent system for enhanced accuracy and efficiency.

Innovation Solution

An electronic device employing stochastic optimization to determine probability map information using a pre-trained neural network model, selecting sub-images with higher probability values for object detection, thereby reducing processing complexity without resizing the original image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the image size is reduced to fasten object detection tasks, then processing speed is improved, but detection accuracy deteriorates

Engineering Contradiction:
Improveobject detection speedVSAvoidobject detection accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent segments the image processing task into two phases: first, a coarse detection phase on the full-resolution image to identify candidate regions; second, a refined detection phase focusing only on those candidate regions. This segmentation allows the system to maintain high accuracy by processing only relevant portions at full resolution while achieving improved speed through selective processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by processing different regions of the image with different levels of detail. High-resolution processing is applied only to candidate regions identified as containing objects, while other regions receive minimal or no processing. This ensures detection accuracy is maintained for critical areas while reducing overall computational burden.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If the full-resolution image is processed for accurate object detection, then detection accuracy is improved, but computational complexity increases

Engineering Contradiction:
Improveobject detection accuracyVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts and processes only the essential information needed for accurate detection. By using a two-stage approach where the first stage identifies candidate regions and the second stage processes only those regions, the system extracts the minimum necessary portion of the full-resolution image for detailed processing, thereby reducing computational complexity while maintaining accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by processing only a subset of the image data at full resolution - specifically, only the candidate regions identified in the first stage. This partial processing approach maintains detection accuracy for objects while avoiding the excessive computational cost of processing the entire high-resolution image.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11288507B2Object detection in image based on stochastic optimization
Publication Date: 2022.03.29 SONY GROUP CORP
  • US11288507B2 patent drawing
  • US11288507B2 patent drawing
  • US11288507B2 patent drawing

AI summary

An electronic device includes circuitry that determines probability map information for a first image, based on application of a neural network model on the first image. The neural network model is trained to detect one or more objects based on a plurality of images associated with the one or more objects. The probability map information indicates a probability value for each pixel in the first image. A region corresponding to the one or more objects is detected in the first image based on the probability map information. A first set of sub-images is determined from the detected region, based on application of a stochastic optimization function on the probability map information. The one or more objects are detected from a second set of sub-images of the first set of sub-images, based on application of the neural network model on the second set of sub-images.