Client-Side Image Processing for Mobile Check Deposit Quality

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Solution Overview

Problem

Existing mobile check deposit solutions face challenges with inconsistent image quality due to low light conditions and shaky hands, fraud detection inaccuracies, and reliance on backend servers for processing, leading to delays and resource consumption.

Innovation Solution

A computing system that performs client-side validation and processing using machine-learning models on mobile devices to enhance image quality, detect fraud, and validate user identity, reducing server load and improving efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If image processing and fraud detection are performed on backend servers, then processing power and resources are centralized, but processing delays increase and server resource consumption increases

Engineering Contradiction:
Improvefraud detection accuracyVSAvoidprocessing delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent divides the image processing system into two segments: a client-side machine learning model that performs initial image quality assessment and feature extraction on mobile devices, and a backend server that performs final fraud detection and validation. This segmentation allows preliminary processing to occur locally without network delays, while maintaining centralized security validation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The client-side machine learning model performs preliminary image processing, quality assessment, and feature extraction before images are transmitted to the backend server. This preliminary action filters out low-quality images and extracts relevant features in advance, reducing the computational burden and processing time required by the backend server.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If detailed instructions are provided to users for check deposition, then processing accuracy may improve, but user convenience decreases

Engineering Contradiction:
Improveimage quality consistencyVSAvoiduser convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The client-side machine learning model provides real-time feedback to users about image quality metrics such as lighting conditions, focus, and composition. The system guides users to retake images that do not meet quality thresholds, creating a closed-loop feedback system that improves image consistency without requiring users to memorize detailed instructions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The machine learning model automatically assesses image quality and provides corrective guidance, enabling users to self-correct poor images without needing expert knowledge of proper check deposition techniques. The system adapts to user actions and provides context-specific feedback, making the process intuitive rather than instruction-heavy.

Inventive Principle:
Principle #25Self-service

3Productivity

If remote deposit capture is implemented, then latency and travel time are reduced, but verification of user identity and check authenticity becomes more challenging

Engineering Contradiction:
Improvedeposit processing speedVSAvoididentity and authenticity verification
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The client-side machine learning model acts as an intermediary verification layer between the user and the backend server. It performs initial validation of check authenticity features and user device characteristics before images reach the server, providing an additional security checkpoint that maintains verification reliability while enabling remote processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If mobile devices are used for check capture, then accessibility and convenience improve, but image quality consistency deteriorates due to varying environmental conditions and device capabilities

Engineering Contradiction:
ImproveaccessibilityVSAvoidimage quality consistency
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The machine learning model dynamically adjusts processing parameters based on the specific mobile device being used and its camera capabilities. It adapts to varying lighting conditions, sensor qualities, and hardware characteristics by modifying image processing parameters in real-time, thereby maintaining consistent output quality across diverse device types and environmental conditions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4632691A1Machine-learning models for image processing
Publication Date: 2025.10.15 CITIBANK N A
  • EP4632691A1 patent drawingFigure 1
  • EP4632691A1 patent drawingFigure 2
  • EP4632691A1 patent drawingFigure 3A

AI summary

Presented herein are systems and methods for the employment of machine learning models for image processing as may be performed by computing devices associated with an end user. A method may include obtaining a video feed generated at a camera device. The method may include executing an object recognition engine of a machine-learning architecture using the video feed as an input, the object recognition engine trained to detect a type of document in image data of the video feed. The method may include generating a halt instruction for halting the video feed in response to detecting a document of the type of document in the image data of the video feed. The method may include selecting one or more frames of a plurality of frames of the video feed having the image data satisfy a quality selection threshold for the document according to one or more image characteristics.