PATENT CLAIM ANALYSIS

Application Number: 15941124
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["345", "008000"]

Abstract:
A system for hand tracking may comprise a head mounted display wearable by a user and a hand tracking camera module attached to the head mounted display and comprising at least one of a pair of stereo cameras or a depth camera. The hand tracking camera module may be configured to capture images of at least one physical hand of the user. The head mounted display may be configured to render a virtual hand resembling the physical hand in a virtual environment for viewing by the user based at least on the images.

Claim (Index 18):
The method of  claim 17 , wherein: to render the virtual hand resembling the physical hand in the virtual environment for viewing by the user based at least on the images, the system comprises a processor and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the processor to perform a visual tracking method, the method comprising:\n (step 7) obtaining an image in a current frame and determined skeleton joints and a determined 3D object pose in a previous frame as inputs to execute a Hand and Marker Detection algorithm to determine from the image one or more regions corresponding to the physical hand and one or more regions corresponding to the marker; (step 8) executing a 3D Hand Skeleton Joints Recognition algorithm to determine 3D skeleton joints of the physical hand in 26 degrees-of-freedom in the current frame, and executing a Marker 3D Position Recognition algorithm to determine a 3D position of the marker; (step 9) obtaining the determined 3D skeleton joints, the 3D position of the marker, the IMU data, and at least one of the button event or the touch event as inputs to a Hand And Controller Fusion Detection algorithm; (step 10) obtaining an output of the Hand And Controller Fusion Detection algorithm and the IMU data as inputs to a 3D Hand Pose And 3D Object Pose And IMU Fusion algorithm to refine the determined 3D skeleton joints and to determine a 3D object pose; (step 11) rendering the virtual hand based at least on the refined 3D skeleton joints; (step 12) feedbacking the determined 3D skeleton joints to the Hand And Marker Detection algorithm for determining the regions corresponding to the hand and the marker in a next frame; and (step 13) recursively performing (step 7)-(step 12) for the next frame.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.13333
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15274294', '15274334', '15814924', '15274387', '15274361']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6442396208400729
- 35 USC 102 Novelty (BERT): 0.4846453292545746
- Combined Prediction Score: 0.6282801916815232
- Mean Citation Score: 202.215106
- Max Citation Score: 209.92458
- Similarity Product: 154.57374775721308

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test