Video Analyzer Detecting Blockiness in Content Receivers
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Solution Overview
Problem
Video content quality is compromised due to packet loss and compression, leading to artifacts and blockiness, which negatively impact the user's viewing experience, especially in scenarios like satellite broadcasts and network congestion.
Innovation Solution
A content receiver system equipped with a video analyzer that detects and quantifies the effect of artifacts and compression on video frames, triggering responses such as retransmitting missing data or adjusting bit rates to maintain quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If video content is compressed to lower bit-rate to maintain smooth playback, then playback continuity is improved, but video quality deteriorates due to blockiness
Solution Approach 1:
The patent implements a feedback mechanism where the video analyzer continuously monitors video frames for blockiness artifacts, and when blockiness is detected, triggers a response to request retransmission of the compressed video content at a higher bit-rate, thereby dynamically adjusting quality based on actual compression effects
Solution Approach 2:
The patent replaces subjective human visual assessment of video quality with an automated video analyzer that objectively detects blockiness artifacts through algorithmic analysis of video frames, enabling automated quality-based retransmission requests
2Productivity
If compression is applied to reduce bandwidth requirements, then transmission efficiency is improved, but video quality deteriorates due to compression artifacts
Solution Approach 1:
The system uses feedback from the video analyzer that detects compression-induced blockiness to trigger retransmission requests, allowing the system to dynamically adjust transmission quality based on actual compression artifact levels rather than using fixed compression ratios
Solution Approach 2:
The patent changes the bit-rate parameter dynamically by requesting retransmission of video content at higher bit-rates when blockiness is detected, rather than using a fixed compression level throughout playback
3Reliability
If packet loss occurs during transmission, then transmission robustness is improved against network issues, but video quality deteriorates due to missing frames
Solution Approach 1:
The video analyzer provides feedback when quality degradation is detected, which may indicate packet loss, triggering a response to request retransmission of the affected video content to restore completeness
Solution Approach 2:
The system requests retransmission of video content before playback interruptions occur, cushioning against the potential impact of packet loss by proactively obtaining replacement data
Data Source
AI summary
A content receiver and a method for controlling the same are provided. The content receiver, for example, may include, but is not limited to, a communication system configured to receive video content comprising a plurality of video frames from a content source, and a video analyzer configured to determine when compression of the video content is causing blockiness in one or more of the plurality of video frames, and trigger at least one content receiver response when the compression of the video content is causing blockiness in one or more of the plurality of video frames.