Temporal Bitmapped Image Data Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems struggle to accurately determine the intent of respondents in handwritten responses, especially when marks are crossed out or changed over time, as they lack a mechanism to identify individual marks and their sequence in bitmapped images.
Innovation Solution
A system that creates a temporal bitmapped image by embedding temporal data within pixel values in a gray-scale or color bitmapped format, allowing for the reconstruction of the respondent's intent through efficient image processing and data extraction, using techniques like key-from-image, human evaluation, or automated scoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all marks are combined into a reconstituted image, then the image representation is complete, but the ability to determine respondent intent deteriorates when marks are crossed out or changed
Solution Approach 1:
The patent embeds temporal sequence information within the pixel values of the bitmapped image, nesting temporal data inside the spatial representation. Each pixel value encodes both the mark information and its temporal sequence, allowing the image to contain multiple layers of information simultaneously.
Solution Approach 2:
The patent changes the parameter encoding of pixel values to include temporal information. By modifying how pixel values are structured to embed temporal sequence data, the system transforms the image from a simple spatial representation to a multi-dimensional representation that includes temporal ordering.
2Reliability
If temporal data is stored separately from the image, then the temporal sequence is preserved, but the processing efficiency and ease of operation deteriorates
Solution Approach 1:
The patent merges temporal sequence information with the spatial image data by embedding it within pixel values. This combination eliminates the need for separate temporal data storage and processing, allowing both spatial and temporal information to be handled through standard image processing operations.
Solution Approach 2:
The patent makes the bitmapped image multi-functional by enabling it to serve both as a visual representation and as a container for temporal sequence data. The same image structure is used for both display purposes and for encoding temporal information, eliminating the need for separate data structures.
3Productivity
If traditional bitmapped images are used, then the processing is efficient, but the ability to identify individual marks and their sequence is lost
Solution Approach 1:
The patent modifies the parameter encoding of pixel values to include temporal sequence information while maintaining the bitmapped image format. By changing how pixel values are structured rather than changing the fundamental image format, the system preserves processing efficiency while gaining temporal information capability.
Data Source
AI summary
In a method and system to extract data from handwritten information when the information is captured as sequences of strokes, vectors, or marks, temporal data is stored within the color or gray-scale encoding of pixel values within a bitmapped image. A bitmapped image is used to create a derived image suitable for data extraction and a method of analyzing the image, including the encoded temporal data, to yield an adjusted image that better reflects the intent of the person who created the handwriting. While the primary application of the invention is in processing handwritten responses to assessment items, the system and method can be advantageously used to extract data from or to improve the presentation of information from an electronic representation of temporal human marks in many applications. Additionally, the system and method can be advantageously used to store and process other types of data within a bitmapped image.