Dynamic Phase Detection for Cross Color Image Quality
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Solution Overview
Problem
Conventional image processing methods use a predetermined phase for encoding and decoding, which can result in errors for images with cross color phenomena, limiting the quality of decoded images as the phase may not be appropriate for all data.
Innovation Solution
A phase detection apparatus comprising a motion detector, image characteristic detector, phase testing module, and phase determining module that dynamically detects and adjusts the phase by encoding and decoding image data with multiple phases to select the optimal phase for improved image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a predetermined phase is used for encoding and decoding image data, then the encoding/decoding process can be simplified, but the image quality deteriorates when cross color phenomenon occurs
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed predetermined phase to a dynamically detected phase. The phase detection apparatus analyzes the decoded image data to determine the actual phase used during encoding, allowing the system to adapt to different phase conditions in real-time. This dynamic phase adjustment resolves the contradiction by maintaining simple encoding/decoding processes while improving image quality through adaptive phase correction.
Solution Approach 2:
The patent implements feedback by introducing a phase detection apparatus that monitors the decoded image data and provides feedback about the actual phase used. The feedback signal from the phase detection apparatus is used to correct the phase in subsequent encoding/decoding operations. This feedback mechanism allows the system to maintain simplicity in the basic encoding/decoding process while improving image quality through continuous phase optimization.
2Speed
If a predetermined phase is used for all image data, then the processing speed can be maintained, but the adaptability to different image characteristics decreases
Solution Approach 1:
The patent applies preliminary action by performing phase detection on the decoded image data before using the phase information for subsequent encoding/decoding operations. The phase detection apparatus analyzes the image characteristics and determines the appropriate phase in advance, allowing the system to maintain fast processing speeds while adapting to different image characteristics. The preliminary phase determination ensures that the correct phase is ready for immediate use in the next processing cycle.
3Manufacturing precision
If phase detection and adjustment are implemented, then the image quality can be improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing the phase detection apparatus to perform multiple functions: detecting the actual phase used during encoding, analyzing image characteristics, and providing phase correction information. By making the apparatus multi-functional, the patent reduces the need for separate dedicated components for each function, thereby improving image quality while minimizing the increase in device complexity. The universal design allows a single apparatus to handle phase detection, image analysis, and correction coordination.
Data Source
AI summary
A phase detection apparatus includes: a motion detector, for determining whether an image data corresponds to a still image data; an image characteristic detector, coupled to the motion detector, for detecting a characteristic image data having cross color phenomenon when the image data corresponds to a still image data; a phase testing module, coupled to the image characteristic detector, for processing the characteristic image data according to a plurality of phases to obtain a plurality of testing results; and a phase determining module, for selecting a phase from the plurality of phases according to the plurality of testing results.