Video Processing Co-located Frame Flag Mechanism
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Solution Overview
Problem
Conventional video coding techniques suffer from low coding efficiency, which is undesirable for digital video applications.
Innovation Solution
The proposed method involves determining whether a candidate frame associated with a current video block is a co-located frame based on its frame type, and performing the conversion accordingly to improve coding effectiveness and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional video coding techniques are used, then video compression is achieved, but coding efficiency is low
Solution Approach 1:
The patent segments the reference frame selection process by introducing a flag-based mechanism that divides candidate frames into co-located frames and non-co-located frames. This segmentation allows the encoder to selectively process different frame types with different levels of detail, improving overall coding efficiency while maintaining reconstruction accuracy.
Solution Approach 2:
The patent changes the parameter representation by introducing a flag variable that indicates whether a candidate frame is a co-located frame. This parameter change enables the system to adaptively adjust the coding process based on frame type, allowing for more efficient compression by treating different frame types differently according to their characteristics.
2Loss of information
If multiple co-located frames are used for conversion, then coding effectiveness improves, but bitstream complexity increases
Solution Approach 1:
The patent extracts only the essential information needed to identify co-located frames by using a simple flag indicator rather than transmitting complete frame data or complex metadata. This extraction approach maintains coding effectiveness by preserving the necessary frame identification information while significantly reducing bitstream complexity.
Solution Approach 2:
The patent uses a flag copy mechanism where a single binary indicator is used to represent the co-located frame status. This copying approach allows the receiver to reconstruct the frame selection logic without transmitting multiple complete frame copies or complex syntax elements, thereby reducing bitstream complexity while maintaining coding effectiveness.
3Productivity
If frame type-based co-located frame determination is implemented, then coding efficiency improves, but processing complexity increases
Solution Approach 1:
The patent performs preliminary classification of candidate frames by their frame type before the actual video block conversion process. By determining whether frames are co-located in advance using a simple flag check, the system prepares the coding process with pre-identified frame categories, reducing the computational complexity during the actual encoding/decoding operation while improving overall coding efficiency.
Solution Approach 2:
The patent implements a self-service mechanism where the frame type information and co-located frame determination logic are embedded directly in the bitstream as simple flags. This allows the receiving end to automatically perform the frame classification and selection without requiring complex external processing or additional computational resources, thereby reducing processing complexity while maintaining coding efficiency.
Data Source
AI summary
Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a current video block of a video and a bitstream of the video, whether a candidate frame associated with the current video block is a co-located frame based on a frame type of the candidate frame, the co-located frame being co-located with a frame comprising the current video block; and performing the conversion based on the determining.