PATENT CLAIM ANALYSIS

Application Number: 15876233
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["382", "131000"]

Abstract:
Provided is an in vivo movement tracking apparatus configured to track a portion of interest that moves in vivo, in which accuracy and robustness of tracking are improved. The apparatus is configured to determine an estimated position of ah organ in a biological image based on the past movement of the organ and search for contour points corresponding to a plurality of control points, respectively, representing a contour shape of the organ in a region corresponding to the estimated position, to thereby determine an estimated contour of the organ based on the contour points. The in vivo movement tracking apparatus is configured to determine a position of a portion of interest, which moves in association with the organ, based on the estimated contour with reference to previously acquired sample data regarding a positional relationship between a contour of the organ and the portion of interest.

Claim (Index 1):
An in vivo movement tracking apparatus, comprising:\n at least one processor; and at least, one storage device configured to store a plurality of instructions, the plurality of instructions causing, when being executed by the at least one processor, the at least one processor to perform:\n organ position estimation processing for determining an estimated position of an organ of concern in a biological image, which is obtained by photographing a biological structure, based on a past movement of the organ of concern in vivo; \n contour estimation processing for searching for contour points of the organ of concern in a region corresponding to the estimated position in the biological image and determining an estimated contour of the organ of concern based on the contour points; and \n portion-of-interest tracking processing for determining a position of a portion of interest, which moves in association with the organ of concern, in the biological image based on the estimated contour with reference to previously acquired sample data regarding a positional relationship between a contour of the organ of concern and the portion of interest, \n the contour estimation processing including:\n searching for the contour points corresponding to a plurality of control points, respectively, in an active contour model having a contour shape of the organ of concern; and \n determining the estimated contour by using a shape model, the shape model representing the contour shape with a sum of a reference shape and a linear combination of a plurality of deformation modes that are linearly independent from each other, and a clear contour point having a degree of reliability greater than or equal to a predefined reference among the contour points being an initial value, the estimated contour being determined by alternately repeating PASM processing for determining a coefficient of each of the plurality of deformation modes in the linear combination based only on the control point corresponding to the clear contour point among the plurality of control points and processing for correcting a position of the control point given by the PASM processing by a SNAKE method, which is based on an energy minimizing principle regarding the contour shape.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 86.0
- Lexical Diversity: 2.56667
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15867302', '12126032', '13930042', '11165565', '12695397']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.270972232640345
- 35 USC 102 Novelty (BERT): 0.478848117074467
- Combined Prediction Score: 0.2917598210837572
- Mean Citation Score: 151.27909599999995
- Max Citation Score: 161.6797
- Similarity Product: 118.2089375174284

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

Dataset: test