PATENT CLAIM ANALYSIS

Application Number: 15749554
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["345", "660000"]

Abstract:
The present application provides a method and a device for super-resolution image reconstruction based on dictionary matching. The method includes: establishing a matching dictionary library; inputting an image to be reconstructed into a multi-layer linear filter network; extracting a local characteristic of the image to be reconstructed; searching the matching dictionary library for a local characteristic of a low-resolution image block having the highest similarity with the local characteristic of the image to be reconstructed; searching the matching dictionary library for a residual of a combined sample where the local characteristic of the low-resolution image block with the highest similarity is located; performing interpolation amplification on the local characteristic of the low-resolution image block having the highest similarity; and adding the residual to a result of the interpolation amplification to obtain a reconstructed high-resolution image block. The local characteristics of the image to be reconstructed extracted by the multi-layer linear filter network have higher precision. Thus, a higher matching degree can be obtained during subsequent matching with the matching dictionary library, and the reconstructed image has a better quality. Therefore, the present invention can greatly improve the quality of the high-resolution image to be reconstructed.

Claim (Index 10):
The device of  claim 9 , wherein for each filter window with a preset size, the first-stage filter or the second-stage filter is configured to perform linear filtering of pixel (i 0 ,j 0 ) of the image in middle of the filter window by using linear filters in different directions using a response formula as follows: f \ue8a0 ( P F ) = | min ( \u2211 i , j \u2208 L k \ue89e L k ) | \ue89e k = 1 , 2 , L \ue89e \ue89e N ( 1 ) where P F  is the local image block of size of the filter windows, L k  is a local line in direction k,(k=1,2, . . . N) in the filter window, (i,j) is coordinates of a pixel point on line L k , wherein line L k  is defined as follows:\n L k ={( i,j ): j=S k ( i\u2212i 0 )+ j 0 , i \u2208 P F }\u2003\u2003(2) \n where S k is the slope of line L k .

Metadata:
- Claim Count in Document: 12.0
- Percentile: 88.0
- Lexical Diversity: 2.72727
- Patent Class: 345.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15526138', '14615075', '15481430', '15060627', '14786981']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6241411441461184
- 35 USC 102 Novelty (BERT): 0.4988703683130199
- Combined Prediction Score: 0.6116140665628086
- Mean Citation Score: 205.543122
- Max Citation Score: 218.658
- Similarity Product: 157.0530192468166

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

Dataset: test