PATENT CLAIM ANALYSIS

Application Number: 15860494
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["345", "419000"]

Abstract:
Disclosed a method and a system for providing virtual reality (VR) video transcoding and broadcasting. The method comprises: obtaining a use's viewport; processing a VR video data into a basic video set and an enhancement video set in accordance with the user's viewport, wherein the basic video set comprises a plurality of basic video segments, the enhancement video set comprises a plurality of enhancement video segments, and the playback effect of the sum of the basic video segment and the enhancement video segment is better than that of the basic video segment; downloading the basic video segments and the enhancement video segments; and displaying a sum of two video data obtained by adding the basic video segments and the enhancement video segments in accordance with the user's viewport. According to the embodiments of the present disclosure, the VR video data is processed into a basic video set and an enhancement video set and an video data obtained by adding the basic video segments and the enhancement video segments in accordance with the user's viewport is displayed. Thus, viewing experience is ensured while downloaded data is reduced and transmission effect is improved.

Claim (Index 10):
The method according to  claim 8 , wherein the step of displaying the sum of two video data in binocular mode comprises:\n obtaining relevant parameters including a camera matrix, a projection matrix, a model matrix and a center position of lens distortion; creating a three-dimensional model and obtaining an original coordinate data of the three-dimensional model; obtaining a first coordinate data in accordance with the relevant parameters and the original coordinate data of the three-dimensional model; performing lens distortion on the first coordinate data based on the center position of lens distortion to obtain a second coordinate data; rasterizing the second coordinate data to obtain pixel units; and drawing an image in accordance with a VR video data and the pixel units.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 86.0
- Lexical Diversity: 2.95775
- Patent Class: 345.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15860449', '15250748', '15799837', '15593050', '15337806']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6533465691147602
- 35 USC 102 Novelty (BERT): 0.5115613049390948
- Combined Prediction Score: 0.6391680426971936
- Mean Citation Score: 199.32800200000003
- Max Citation Score: 293.63364
- Similarity Product: 220.7413093747116

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