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US 12,223,868 B1Granted
Display screen anomaly detection system
AssigneeMicrosoft Technology Licensing, LLC
InventorsUtsav Babasaheb Namadar, Jason Williams
Life of this patent
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Abstract
Techniques and systems for enhanced detection and correlation of transient anomalies in frames or graphics displayed on a display screen, such as flicker events. In one example, a method includes obtaining luminosity measurements of a display acquired over a series of frames depicted on the display, processing the luminosity measurements to form a luminosity signature for the series of frames, and detecting transient anomalies for the display based at least on the luminosity signature.
Claims20
A method, comprising:
- obtaining luminosity measurements of a display acquired over a series of frames depicted on the display;
- processing the luminosity measurements to form a luminosity signature for the series of frames;
- and
- detecting transient anomalies for the display based at least on the luminosity signature.
1 more element
An apparatus, comprising:
- a processing system operatively coupled with one or more computer readable storage media;
- and
- program instructions stored on the one or more computer readable storage media that, based at least on being read and executed by the processing system, direct the processing system to at least:
- obtain luminosity measurements of a display acquired over a series of frames depicted on the display;
- process the luminosity measurements to form a luminosity signature for the series of frames;
- and
- detect transient anomalies for the display based at least on the luminosity signature.
4 more elements
A system, comprising:
- a luminosity assembly comprising luminosity sensors configured to acquire luminosity measurements of a display over a series of frames depicted on the display;
- and
- a luminosity processor configured to:
- receive the luminosity measurements and process the luminosity measurements to form a luminosity signature for the series of frames;
- and
- filtering the luminosity signature according to a bandpass filter having a frequency range that includes a frequency selected to indicate screen flicker anomalies;
- process the filtered luminosity signature to determine instances of the filtered luminosity signature exceeding a threshold amplitude;
- and
- transfer indications of the screen flicker anomalies comprising the instances.
6 more elements
Dependencies are inferred from the claim text.