PATENT CLAIM ANALYSIS

Application Number: 15999508
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["375", "240120"]

Abstract:
A video predictive encoding device can include an input device to implement input of pictures constituting a video sequence; an encoder to encode the pictures by intra-prediction or inter-prediction and to encode output order information of each picture and information about a picture type of each picture to generate compressed picture data. The compressed picture data includes a picture to serve as a random access point. The video predictive coding device can also include a reconstruction unit to decode the compressed picture data to reconstruct pictures; a picture storage unit to store one or more of the reconstructed pictures as reference pictures to be used for encoding of a subsequent picture; and a controller to determine the picture type and control the picture storage unit based on the determined picture type. The controller can label each picture as one of following three types: CRA picture, type-1 picture and type-2 picture.

Claim (Index 1):
A video predictive decoding method executed by a video predictive decoding device, comprising:\n an input step of inputting a bitstream including compressed picture data for a plurality of pictures constituting a video sequence, where each picture has a network abstraction layer unit type that identifies said picture as one of a plurality of picture types including random access picture, random access skipped (RAS) leading picture and non-RAS leading picture; a reconstruction step of decoding the compressed picture data to reconstruct pictures based on the picture types; and an output step of outputting the reconstructed pictures; wherein 1) a random access picture is the first picture in the bitstream in decoding order when the decoding process, which starts at any random access picture in the bitstream, is started from said random access picture; 2) RAS leading picture is the picture which precedes the associated random access picture in output order, and is not decodable when the associated random access picture is the first picture in the bitstream in decoding order; 3) non-RAS leading picture is the picture which precedes the associated random access picture in output order, and is decodable, and wherein a reference picture set of the non-RAS leading picture including reference pictures used for inter prediction of the non-RAS leading picture does not include any of a RAS leading picture or a picture that precedes the associated random access picture in decoding order, a reference picture set of a second random access picture does not include any picture preceding a first random access picture in decoding order when the second random access picture is decoded after the first random access picture, and in the reconstruction step, the video predictive decoding device determines whether said picture is correctly decoded, at a start of decoding of said picture.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 2.14865
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14583242', '15131574', '15266824', '13801950', '14646713']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.513003658163564
- 35 USC 102 Novelty (BERT): 0.5548407216563016
- Combined Prediction Score: 0.5171873645128378
- Mean Citation Score: 324.35304
- Max Citation Score: 424.38434000000007
- Similarity Product: 387.38883258508463

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