Transformer Pose Prediction Using Ordinal Regression
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Solution Overview
Problem
Current hand pose estimation methods in gesture recognition face challenges with noise, unclear edges, and low resolution in depth images, limiting their accuracy and robustness.
Innovation Solution
A method involving a transformer-based approach that extracts feature maps from input images, including depth images, to predict joint point coordinates using ordinal regression models, generating x, y, and z classification feature volumes for precise pose prediction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If depth images are used for hand pose estimation, then three-dimensional pose prediction capability is improved, but image quality deteriorates due to noise, unclear edges, and low resolution
Solution Approach 1:
The patent merges RGB images and depth images into a combined input for the transformer model. The RGB image provides high-quality visual information with clear edges and colors, while the depth image provides three-dimensional spatial structure information. By processing both image types simultaneously through the transformer architecture, the system achieves accurate 3D pose prediction while compensating for the weaknesses of individual modalities.
Solution Approach 2:
The transformer model acts as an intermediary that processes and integrates features from both RGB and depth images. The model extracts features from the combined input and uses ordinal regression to predict joint point coordinates, effectively translating the noisy depth information into accurate pose predictions by leveraging the complementary strengths of both image types.
2Ease of operation
If conventional pose estimation methods are used, then processing simplicity is maintained, but prediction accuracy deteriorates in noisy or low-resolution conditions
Solution Approach 1:
The patent replaces conventional pose estimation methods with a transformer-based deep learning approach. Instead of using traditional computer vision algorithms that struggle with noisy depth images, the system employs a transformer model with self-attention mechanisms to automatically learn and extract relevant features from combined RGB and depth inputs, achieving superior accuracy in challenging conditions.
Solution Approach 2:
The patent changes the fundamental parameters of the pose estimation approach by using ordinal regression to predict joint point coordinates directly from image features. Rather than estimating poses through multiple intermediate steps or assumptions, the model directly regresses 3D coordinates of joint points, improving precision while maintaining computational efficiency.
Data Source
AI summary
An electronic device for predicting a pose and a method of operating the electronic device are provided. The method includes extracting a feature map from an input image, predicting coordinates of a joint point from the feature map using an ordinal regression model, and predicting a pose of an object using the predicted coordinates of the joint point.


