Document Segmentation for Eco-Friendly Printing
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Solution Overview
Problem
The environmental impact of printing is significant due to the large consumption of paper and ink, with existing solutions like scaling down documents to fit multiple pages on one sheet compromising readability and aesthetics, leading users to abandon eco-friendly printing practices.
Innovation Solution
A computer program that segments content into regions based on homogeneous characteristics, filters and applies transformations to reduce the number of pages printed while maintaining readability and aesthetics, utilizing a cost function to evaluate and apply transformations that minimize paper and ink usage without degrading the document's appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If multiple pages are scaled down to fit on a single page, then paper and ink usage is reduced, but readability and aesthetics are severely hampered
Solution Approach 1:
The document is segmented into multiple regions based on content characteristics (text density, image presence, formatting). Each region is independently analyzed and transformed to optimize for both space efficiency and readability. This allows different parts of the document to be treated differently, maintaining quality where needed while compressing where possible.
Solution Approach 2:
Different transformation strategies are applied to different regions of the document based on their specific characteristics. Text-heavy regions may use different scaling and formatting than image-heavy regions. This localized approach ensures that each region maintains its readability and aesthetic quality while contributing to overall space efficiency.
2Loss of substance
If multiple pages are scaled down to fit on a single page, then paper and ink usage is reduced, but the document aesthetics are compromised
Solution Approach 1:
The document structure is segmented into regions that preserve aesthetic boundaries (sections, chapters, visual elements). Transformation operations are applied within these segments to maintain the overall aesthetic structure while reducing total page count.
Solution Approach 2:
Multiple transformation parameters are adjusted and optimized (scaling factors, spacing, formatting, layout) to achieve the best balance between space efficiency and aesthetic quality. The system evaluates different parameter combinations to find transformations that minimize paper usage while preserving visual appeal.
3Object-affected harmful factors
If transformations are applied to reduce page count, then environmental impact is reduced, but document appearance may be degraded
Solution Approach 1:
The system uses a cost function that provides feedback on the quality impact of each transformation. This cost function evaluates how transformations affect document appearance, readability, and structural integrity. The feedback guides the selection of transformations that achieve space reduction while maintaining appearance quality within acceptable thresholds.
Solution Approach 2:
The system performs preliminary analysis of the document structure and content characteristics before applying transformations. This preliminary action identifies regions that are sensitive to transformation and establishes constraints to protect their appearance quality. Transformations are then applied in a planned sequence that minimizes cumulative degradation.
Data Source
AI summary
A word processing document is repurposed to save paper and ink. An indication is received that a printout of a word processing document from a printer has been requested. Further, the content is segmented into one or more regions according to a set of grouping rules, the set of grouping rules defining a region has having at least one homogeneous characteristic. In addition, one or more potential transformations are filtered for each region to generate one or more filtered potential transformations based on a set of rules that restricts a transformation according to a region type. The region type is determined by the at least one homogeneous characteristic for each region. Further, a cost function is evaluated for each of the one or more filtered potential transformations according to one or more appearance attributes for the word processing document.