Invention Grant
- Patent Title: Advanced noise reduction in digital cameras
- Patent Title (中): 高级降噪数码相机
-
Application No.: US14472131Application Date: 2014-08-28
-
Publication No.: US09148593B2Publication Date: 2015-09-29
- Inventor: Dudi Vakrat , Noam Korem , Victor Pinto
- Applicant: QUALCOMM Technologies, Inc.
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Technologies, Inc.
- Current Assignee: QUALCOMM Technologies, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: G06K9/00
- IPC: G06K9/00 ; H04N5/357 ; G06T5/00 ; H04N5/217 ; H04N5/232 ; H04N9/64

Abstract:
A noise reduction apparatus for digital cameras is presented that includes groups of one or more connected non-linear filter units. Each of the filter unit groups are driven by decimated input image data at a different level of decimation and the output of at least one of these filter unit groups serves as one of a plurality of inputs to another filter unit group driven at a different decimation level. Filtered image data from one or more filter unit groups is adaptively combined in response to one or more image metrics related to one or more local regional image characteristics.
Public/Granted literature
- US20150054991A1 ADVANCED NOISE REDUCTION IN DIGITAL CAMERAS Public/Granted day:2015-02-26
Information query