Color Space Determination via Adaptive Video Sampling

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Solution Overview

Problem

Conventional display devices require user selection of color space, which can lead to incorrect color space determination due to user unawareness, and sampling all video data in a frame slows down operation speed.

Innovation Solution

A color space determination device that includes a sampling configuration unit to determine sampling ratio and number based on video data resolution, sampling input video data at different locations within a frame, and a determination unit to generate a color space signal by comparing sampled values with thresholds, thereby reducing incorrect determinations and maintaining operation speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If all video data in a frame is sampled to determine color space, then measurement precision is improved, but operation speed deteriorates

Engineering Contradiction:

Improvecolor space determination accuracyVSAvoidoperation speed

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent applies partial action by sampling only a subset of video data pixels rather than the entire frame. The sampling rate is dynamically adjusted based on frame characteristics - using lower sampling rates for complex frames and higher sampling rates for simpler frames, thus achieving adequate color space determination without processing all pixels.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent implements dynamic sampling rate adjustment based on frame complexity analysis. The system adaptively changes the sampling rate according to the specific characteristics of each frame, using higher sampling rates when color space determination is uncertain and lower rates when the frame is complex, thereby optimizing the balance between accuracy and speed.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If user selection is required for color space, then device complexity is reduced, but reliability deteriorates due to user unawareness

Engineering Contradiction:

Improvedetermination device complexityVSAvoidcolor space determination accuracy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent implements self-service by enabling the determination device to automatically analyze video data characteristics and determine color space without user intervention. The system independently evaluates frame complexity, adjusts sampling rates, and makes color space determinations autonomously, eliminating the need for user selection while improving reliability through automated analysis.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent employs feedback mechanisms where the determination device continuously analyzes sampled video data, evaluates the confidence of color space determination, and adjusts sampling strategies accordingly. When determination confidence is low, the system increases sampling rate; when confidence is high, it maintains lower sampling rates, creating a closed-loop feedback system that improves reliability.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If sampling rate is increased to improve color space determination, then measurement precision is improved, but loss of time increases

Engineering Contradiction:

Improvecolor space signal accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies dynamic sampling rate adjustment where the sampling rate is not fixed but varies based on frame characteristics and determination confidence. The system increases sampling rate only when necessary (low confidence determinations) and maintains lower rates for routine frames, dynamically optimizing the trade-off between precision and processing time.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent uses partial action by sampling only the necessary portion of video data required for adequate color space determination. Rather than consistently sampling at maximum rate, the system determines the minimum sufficient sampling rate for each frame based on its characteristics, reducing unnecessary processing time while maintaining required precision.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8803903B2Color space determination devices and display devices and systems including the same

Publication Date: 2014.08.12 SAMSUNG ELECTRONICS CO LTD

AI summary

A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.