Vehicle Terminal Image Correction via Acceleration Sensor

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Solution Overview

Problem

Existing terminal devices mounted on movable bodies face high processing burdens due to image analysis requirements for correcting captured images, which affects the accuracy and efficiency of image processing.

Innovation Solution

A terminal device equipped with an image capturing unit, an image generating unit that corrects captured images based on the deviation of the image capturing direction relative to the traveling direction of the movable body, and a display unit to generate and display corrected images, utilizing an acceleration sensor to determine the deviation and perform necessary corrections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If image analysis is performed on the captured image to correct the image capturing direction, then the image can be accurately corrected, but the processing burden becomes large

Engineering Contradiction:

Improveimage correction accuracyVSAvoidprocessing burden

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces an acceleration sensor as an intermediary device to detect the deviation between the image capturing direction and traveling direction. This sensor-based approach serves as a mediator that provides correction data without requiring complex image analysis, thus resolving the contradiction between correction accuracy and processing burden

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical/image-based correction system with a sensor-based detection system. Instead of analyzing captured images to determine correction needs, the system uses an acceleration sensor to directly measure the deviation, substituting complex image processing with simpler sensor data processing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If image analysis is performed on the captured image to correct the image capturing direction, then the image can be accurately corrected, but the processing time increases

Engineering Contradiction:

Improveimage correction accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary detection of the image capturing direction deviation using the acceleration sensor before image processing is needed. By detecting the deviation in advance through sensor data rather than analyzing the captured image, the system prepares correction parameters beforehand, reducing the time required during actual image processing

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent substitutes time-consuming image analysis with faster sensor-based detection. The acceleration sensor provides immediate data about deviation, eliminating the need to process captured images to determine correction parameters, thus significantly reducing processing time

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS9064296B2Terminal device, image processing method and image processing program executed by a terminal device

Publication Date: 2015.06.23 PIONEER IP

AI summary

A terminal device is mounted on and used in a movable body such as a vehicle. The terminal device includes an image capturing unit, an image generating unit and a display unit. The image generating unit corrects the captured image captured by the image capturing unit based on the deviation of the image capturing direction of the image capturing unit with respect to the traveling direction of the movable body, and generates a display image. Thus, based on the deviation angle of the image capturing direction with respect to the traveling direction of the movable body, the captured image can be appropriately corrected to generate the display image.