Invention Grant
- Patent Title: Demosaicking single-sensor camera raw data
- Patent Title (中): 单面传感器摄像头原始数据
-
Application No.: US12192714Application Date: 2008-08-15
-
Publication No.: US08111299B2Publication Date: 2012-02-07
- Inventor: Rastislav Lukac
- Applicant: Rastislav Lukac
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agent Mark P. Watson
- Main IPC: H04N5/235
- IPC: H04N5/235 ; G06K9/00

Abstract:
An image processing method that demosaicks a mosaic input image of R, G, and B components to generate a full color output image. The image processing method calculates both vertical and horizontal luminance-chrominance difference components for each pixel of the mosaic input image. Next, the image processing method calculates an enhanced version of both the vertical and horizontal luminance-chrominance difference components for each pixel of the mosaic input image. Next, the image processing method evaluates the variations in the enhanced luminance-chrominance difference components in order to create an edge directional map indicating the direction in which demosaicking should be performed. Then, the image processing method interpolates a G component for each of the pixels with the original R and B components using the edge directional map. Next, the image processing method interpolates an R component for each of the pixels with the original G and B components and a B component for each of the pixels with the original R and G components. Finally, the image processing method enhances the interpolated R and B components using the edge directional map.
Public/Granted literature
- US20100039563A1 Demosaicking Single-Sensor Camera Raw Data Public/Granted day:2010-02-18
Information query