- Patent Title: Scene preset identification using quadtree decomposition analysis
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Application No.: US16283387Application Date: 2019-02-22
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Publication No.: US10796164B2Publication Date: 2020-10-06
- Inventor: Wesley Kenneth Cobb , Bobby Ernest Blythe , Rajkiran Kumar Gottumukkal , Kishor Adinath Saitwal , Gang Xu , Tao Yang
- Applicant: Intellective Ai, Inc.
- Applicant Address: US TX Dallas
- Assignee: Intellective Ai, Inc.
- Current Assignee: Intellective Ai, Inc.
- Current Assignee Address: US TX Dallas
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/254

Abstract:
Techniques are disclosed for matching a current background scene of an image received by a surveillance system with a gallery of scene presets that each represent a previously captured background scene. A quadtree decomposition analysis is used to improve the robustness of the matching operation when the scene lighting changes (including portions containing over-saturation/under-saturation) or a portion of the content changes. The current background scene is processed to generate a quadtree decomposition including a plurality of window portions. Each of the window portions is processed to generate a plurality of phase spectra. The phase spectra are then projected onto a corresponding plurality of scene preset image matrices of one or more scene preset. When a match between the current background scene and one of the scene presets is identified, the matched scene preset is updated. Otherwise a new scene preset is created based on the current background scene.
Public/Granted literature
- US20190258867A1 SCENE PRESET IDENTIFICATION USING QUADTREE DECOMPOSITION ANALYSIS Public/Granted day:2019-08-22
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