PATENT CLAIM ANALYSIS

Application Number: 15765303
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["348", "077000"]

Abstract:
A system stores clustering information obtained by clustering multiple sets of viewpoints relative to teeth of a three-dimensional model of a patient and projection images of a head including the teeth from the respective viewpoints. At the time of a surgery, the system creates comparative images from a photographed image taken by a monocular camera and searches for any viewpoint having a projection image similar to the comparative image sequentially from a first hierarchy to a final hierarchy in the clustering information. The system sets a representative viewpoint based on the viewpoint of the final hierarchy, restores position and posture of the teeth of the patient relative to the monocular camera as position and posture of the teeth of the three-dimensional model relative to the representative viewpoint, and generates and outputs a navigation image based on position and posture of surgical information relative to the teeth after the restoration.

Claim (Index 1):
A surgical navigation system that provides navigation of surgical information including an operation site, the surgical navigation system comprising:\n a storage unit configured to store clustering information obtained by hierarchically clustering multiple sets of viewpoints relative to a first part including an alignment portion in a patient or in a three-dimensional model of the patient and viewpoint-corresponding images that are images when the first part is viewed from the respective viewpoints, according to a predetermined rule, such that a higher hierarchical level has a less number of the viewpoints and a lower resolution of the viewpoint-corresponding images; a monocular camera configured to photograph a second part including the alignment portion of the patient; a comparative image creator configured to convert a resolution of a photographed image that is taken by the monocular camera into a resolution in each hierarchical level of the clustering information and create a plurality of comparative images; a viewpoint searcher configured to search for a viewpoint from a first hierarchy of a highest hierarchical level to a final hierarchy of a lower hierarchical level than the first hierarchy in the clustering information, such as to search for a viewpoint having the viewpoint-corresponding image similar to the comparative image in the first hierarchy and search for a viewpoint having the viewpoint-corresponding image similar to the comparative image among viewpoints belonging to clusters that are connected with viewpoints searched for in an immediately preceding hierarchy in each hierarchy other than the first hierarchy; and an output unit configured to set a representative viewpoint based on a viewpoint that is searched for in the final hierarchy, restore position and posture of the alignment portion of the second part relative to the monocular camera as position and posture of the alignment portion of the first part relative to the representative viewpoint, generate a navigation image based on position and posture of the surgical information relative to the alignment portion of the first part after the restoration, and output the navigation image.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 2.46032
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13702266', '11965549', '14004060', '13972881', '14526364']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5485246200092825
- 35 USC 102 Novelty (BERT): 0.500706216314167
- Combined Prediction Score: 0.5437427796397709
- Mean Citation Score: 156.07610400000004
- Max Citation Score: 177.61533
- Similarity Product: 108.13793924083112

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test