Reproduction Control System Using Image Recognition for Striking Object Detection

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Solution Overview

Problem

Conventional sound reproduction systems require users to pre-select between striking an operation surface with a percussion instrument stick or their hand, which increases user burden.

Innovation Solution

A reproduction control method and system that determine the type of object striking an operation surface based on an image, and reproduce sound accordingly, using different threshold conditions for stick and hand strikes to reduce user burden.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the user pre-selects between striking with a stick or hand, then the sound reproduction accuracy is improved, but the user burden increases

Engineering Contradiction:

Improvesound reproduction accuracyVSAvoiduser burden

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically detects the striking object type (stick or hand) using image recognition technology, eliminating the need for user pre-selection. The object determination module processes images captured by the imaging device to identify whether a stick or hand is striking the operation surface, and the sound reproduction module automatically adjusts parameters based on this detection, making the system self-serve the user's needs without additional manual input

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual selection mechanism is replaced with an automated image recognition and object detection system. Instead of requiring the user to mechanically select or input the striking object type, the system uses optical detection (imaging device) and computational analysis (object determination module) to automatically identify the object and adjust sound reproduction parameters accordingly

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the system supports multiple object types, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:

Improveobject type supportVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sound reproduction system is designed to handle multiple object types (stick, hand, and other objects) through a unified automated detection framework. The object determination module uses general image recognition algorithms that can identify various object types without requiring separate dedicated systems for each object, making the device versatile while maintaining manageable complexity through a single multi-functional detection pathway

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The object determination module serves as an intermediary between the imaging device and the sound reproduction module. It processes the raw image data, determines the striking object type, and translates this information into appropriate sound reproduction parameter settings, thereby managing the complexity by creating a clear separation of concerns between detection, determination, and execution functions

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12266332B2Reproduction control method, reproduction control system, and program

Publication Date: 2025.04.01 YAMAHA CORP

AI summary

A reproduction control method, which is executed by a computer, includes determining, based on an image showing an object, whether a type of the object is a first type or a second type that is different from the first type, and reproducing a sound, triggered by a striking of an operation surface by the object, based on a result of the determining.