PATENT CLAIM ANALYSIS

Application Number: 15946146
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["348", "135000"]

Abstract:
Method and system for calculating a height map of a surface of an object from an image stack in scanning optical  2.5 D profiling of the surface by an optical system, a focal plane is scanned at different height positions with respect to the object surface. An image is captured at each height position of the focal plane to form the image stack. The scanning of the focal plane comprises long range sensing and short range sensing a displacement of the focal plane for sensing low and high spatial frequency components. The height position of the focal plane is estimated by combining the low and high spatial frequency components. A height position of each image in the image stack is calculated, based on the estimated height position of each respective focal plane. The images of the image stack are interpolated to equidistant height positions for obtaining a corrected image stack.

Claim (Index 11):
A system for calculating a height map of a surface of an object from an image stack in scanning optical 2.5D profiling of the surface, the system comprising:\n an optical system that senses scanning a focal plane at different height positions with respect to the object surface, and that captures an image at each height position of the focal plane to form the image stack; a long range type displacement sensor that long range senses a displacement of the focal plane by sensing low spatial frequency components; a short range type displacement sensor that short range senses a displacement of the focal plane by sensing high spatial frequency components, the short range type displacement sensor differing from the long range type displacement sensor; and a processor; and a memory including instructions that, when executed by the processor, cause the processor to perform operations including:\n estimating the height position of the focal plane by combining the low spatial frequency components from the long range type displacement sensor and the high spatial frequency components from the short range type displacement sensor; \n calculating a height position of each image in the image stack, based on the estimated height position of each respective focal plane; \n interpolating the images of the image stack to equidistant height positions for obtaining a corrected image stack; and \n calculating the height map of the surface of the object from the corrected image stack.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 91.0
- Lexical Diversity: 2.43077
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12630925', '12691803', '13151436', '14194931', '13745738']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6051951933388239
- 35 USC 102 Novelty (BERT): 0.4733660498287897
- Combined Prediction Score: 0.5920122789878205
- Mean Citation Score: 165.27046399999998
- Max Citation Score: 170.1948
- Similarity Product: 124.89520231261253

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