Spliced Screen White Balance Adjustment via Image Analysis

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Solution Overview

Problem

Existing methods for adjusting the white balance of spliced screens are time-consuming and labor-intensive, often resulting in inconsistent results due to subjective human intervention, as they require manual adjustment of each display screen, which can lead to differences in white balance states across the screens.

Innovation Solution

A method and device for adjusting the white balance of spliced screens by acquiring an image of the displayed picture, determining a white balance adjustment mode based on reference parameters, and adjusting the gain of color channels to unify the white balance across all screens, using an image acquisition element and processing algorithms to objectively assess and correct the white balance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual adjustment of each display screen is performed, then white balance can be adjusted, but the process is time-consuming and labor-intensive

Engineering Contradiction:

Improvewhite balance adjustment accuracyVSAvoidadjustment time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-measurement and self-adjustment by automatically capturing images of the display screens, analyzing their white balance states, and computing adjustment parameters without requiring manual intervention. The processor automatically determines which screens need adjustment and applies the corrections, making the system self-sufficient in the white balance adjustment process.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical adjustment with automated image processing and computational algorithms. Instead of physically adjusting each screen manually, the system uses image capture devices and processors to automatically analyze and correct white balance parameters through software-based computation and control signals.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If manual adjustment is used, then adjustment can be performed, but human intervention leads to inconsistent results

Engineering Contradiction:

Improvewhite balance consistencyVSAvoidoperational simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system continuously captures images of the display screens, analyzes their actual white balance states, compares them against target values, and automatically adjusts parameters based on the differences. This closed-loop feedback mechanism ensures consistent and reliable results by constantly monitoring and correcting deviations from the desired white balance state.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent eliminates human subjectivity by replacing manual adjustment with automated image processing algorithms that objectively measure and correct white balance parameters. The system uses digital image analysis and computational methods to ensure consistent, repeatable results that are not influenced by human perception variations or operational fatigue.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If each display screen is adjusted individually, then white balance can be optimized, but labor costs increase

Engineering Contradiction:

Improvewhite balance uniformityVSAvoidadjustment efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The patent merges the adjustment process for multiple display screens into a single automated operation. Instead of adjusting each screen separately through manual procedures, the system captures images of all screens simultaneously, analyzes their white balance states collectively, and applies adjustments across the entire spliced screen assembly in one unified process, thereby maintaining precision while dramatically improving efficiency.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system replaces labor-intensive manual adjustment with automated image capture and processing technology. By using digital imaging and computational algorithms, the patent achieves high-precision white balance uniformity across multiple screens without requiring proportional increases in human labor, thus maintaining manufacturing precision while significantly improving productivity and reducing labor costs.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11967261B2Method and device for adjusting white balance of spliced screen, electronic device and storage medium

Publication Date: 2024.04.23 BOE TECHNOLOGY GROUP CO LTD

AI summary

There is provided a method for adjusting white balance of a spliced screen, which includes: acquiring an image to be analyzed; the image to be analyzed includes a picture, to be analyzed, displayed by a display screen to be adjusted, and the display screen to be adjusted is at least a portion of all display screens of the spliced screen; and determining a white balance adjustment mode of the display screen, to be adjusted, corresponding to the picture to be analyzed according to at least the picture to be analyzed in the image to be analyzed.