Driving Assist Apparatus Object Recognition Processing Time

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Solution Overview

Problem

Conventional driving assist systems take time to recognize objects due to the process of detecting areas with higher color density in captured images, which affects precision and efficiency.

Innovation Solution

The system includes an image acquisition part, position information acquisition part, detection range determination part, and object recognition part to identify detection ranges of objects within captured images, allowing for image processing outside these ranges to recognize distinct objects, thereby reducing processing time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If image processing is performed on the entire captured image to detect objects with high color density, then object recognition precision is improved, but processing time increases

Engineering Contradiction:

Improveobject recognition precisionVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The captured image is divided into multiple regions based on detection ranges of objects detected by the sensor. Image processing is performed separately on each region, allowing parallel processing and reducing overall processing time while maintaining recognition precision within each segment

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Regions with objects already detected by the sensor are extracted and excluded from further image processing. Only regions outside these detection ranges undergo image processing, significantly reducing the processing area and time while maintaining comprehensive object recognition

Inventive Principle:

Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach shortens the processing time for object recognition, enhancing the system's ability to quickly notify drivers or control vehicles, ensuring safety by narrowing the image processing range and improving precision in detecting multiple objects.

Implementation Method 1

When detecting the object with the sensor, however, if the object has a high color density, the reflectance of a laser beam or radio wave decreases

Methodology Applied

Scientific EffectLaser beam reflection: Reflection

Data Source

PatentUS10192122B2Driving assist apparatus, driving assist method, and non-transitory computer readable recording medium storing program

Publication Date: 2019.01.29 MITSUBISHI ELECTRIC CORP

AI summary

A driving assist apparatus includes an image acquisition part to acquire a captured image around a vehicle, a position information acquisition part to acquire position information of a first object existing around the vehicle and detected by a sensor, a detection range determination part to determine a detection range of the first object within the captured image based on the position information of the first object, and an object recognition part to perform image processing on, within the captured image, an image existing in a range other than the detection range of the first object, thereby to recognize a second object that is different from the first object. Hence, a processing time taken for recognizing the second object from the captured image can be shortened.