Image-Based Weight Estimation Using Pliable Platform Deformation
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Solution Overview
Problem
Existing weight calculation systems, such as mechanical and electrical scales, are often costly and space-intensive, and may require precise measurements, whereas some applications only need an estimation of weight within a certain range or threshold, necessitating a more cost-effective and space-efficient alternative.
Innovation Solution
The use of an image capture device to capture images of a platform with known pliability characteristics, which calculates the weight of an object based on the deformation caused by its presence, allowing for estimation through comparison with reference deformation data or a look-up table.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional mechanical or electrical scales are used to measure weight, then precise weight measurement is achieved, but the equipment becomes more expensive and occupies more space
Solution Approach 1:
The patent replaces traditional mechanical or electrical scale systems with an optical measurement system using image capture devices. The system captures images of a platform before and after object placement, then calculates weight by analyzing deformation changes in the platform images, eliminating the need for mechanical sensors and complex electrical components.
Solution Approach 2:
The system creates a visual copy of the platform's deformation state through captured images. By analyzing the visual representation of platform deformation rather than directly measuring physical force, the system achieves weight measurement through a simplified optical copying process instead of complex mechanical measurement.
2Measurement precision
If traditional scales are used for accurate weight measurement, then precise weight data is obtained, but the system becomes less cost-effective and more space-intensive
Solution Approach 1:
The patent substitutes expensive mechanical weighing mechanisms with a simple optical system consisting of an image capture device and processing software. The platform's deformation is measured optically through image analysis rather than mechanical force sensing, dramatically reducing equipment cost and space requirements while maintaining sufficient accuracy for estimation purposes.
Solution Approach 2:
The system uses a simple, inexpensive platform with known pliability characteristics that can be easily manufactured and replaced if needed. The platform serves as a disposable or low-cost component that enables the optical measurement system to function without requiring expensive, durable mechanical scale components.
3Measurement precision
If precise weight measurement equipment is deployed, then accurate weight values are obtained, but the system complexity and cost increase unnecessarily for applications requiring only threshold determination
Solution Approach 1:
The system performs partial measurement by capturing only the necessary visual information from platform deformation to determine whether weight exceeds a threshold. Rather than measuring the complete weight spectrum with high precision, the system captures sufficient visual data to make binary threshold decisions, reducing system complexity while meeting application requirements.
Solution Approach 2:
The patent replaces complex mechanical measurement systems with a simple optical capture and image analysis system. The substitution of mechanical force measurement with optical deformation analysis simplifies the overall system architecture while providing adequate measurement capability for threshold-based applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides a cost-effective and space-efficient means of weight calculation, suitable for applications where precise measurements are not necessary, by accurately estimating weight through optical measurement of deformation, thereby reducing the need for bulky and expensive traditional scales.
Implementation Method 1
a platform having a pliable material and a top surface on which an object to be weighed can be placed
Implementation Method 2
The platform includes known pliability characteristics
Implementation Method 3
an image capture device configured to capture a plurality of images of the platform
Implementation Method 4
a processing device configured to calculate the weight of the object based on the plurality of images
Implementation Method 5
measuring vibration parameters from the multiple images and calculating the weight of the object based on the measured vibration parameters
Data Source
AI summary
Systems and methods for calculating the weight of an object are provided. In one implementation, an apparatus for calculating weight comprises an image capture device and a processing device. The image capture device is configured to capture a plurality of images of a platform configured to support an object to be weighed, wherein the platform includes known pliability characteristics. The processing device is configured to calculate the weight of the object based on the plurality of images.