17753279. Merging Split-Pixel Data For Deeper Depth of Field simplified abstract (Google LLC)
Merging Split-Pixel Data For Deeper Depth of Field
Organization Name
Inventor(s)
Rahul Garg of Sunnyvale CA (US)
Neal Wadhwa of Cambridge MA (US)
Merging Split-Pixel Data For Deeper Depth of Field - A simplified explanation of the abstract
This abstract first appeared for US patent application 17753279 titled 'Merging Split-Pixel Data For Deeper Depth of Field
Simplified Explanation
The patent application describes a method for enhancing the depth of field in images by combining two sub-images.
- The method involves obtaining split-pixel image data consisting of a first sub-image and a second sub-image.
- For each pixel in the split-pixel image data, the method determines the position of the corresponding scene feature relative to the depth of field.
- Based on these positions, the method identifies out-of-focus pixels.
- For each out-of-focus pixel, the method determines a corresponding pixel value based on its position, location within the split-pixel image data, and the values of corresponding pixels in the sub-images.
- Using these corresponding pixel values, the method generates an enhanced image with an extended depth of field.
Potential Applications
- Photography: This method can be applied to improve the focus and clarity of images, particularly in situations where a shallow depth of field is desired.
- Medical Imaging: The technique can be used to enhance the depth of field in medical images, allowing for better visualization and analysis of structures within the image.
- Microscopy: Microscopic images often have a limited depth of field, and this method can be used to extend the focus and improve the overall quality of the images.
Problems Solved
- Limited Depth of Field: The method addresses the issue of images with a shallow depth of field, where only a small portion of the scene is in focus, by extending the focus to a larger area.
- Out-of-Focus Pixels: The method identifies and corrects out-of-focus pixels, improving the overall sharpness and clarity of the image.
Benefits
- Enhanced Image Quality: By combining information from multiple sub-images, the method produces an enhanced image with improved focus and clarity.
- Extended Depth of Field: The technique allows for a larger area of the scene to be in focus, providing a more comprehensive view of the subject.
- Versatility: The method can be applied to various imaging applications, including photography, medical imaging, and microscopy, offering a wide range of potential uses.
Original Abstract Submitted
A method includes obtaining split-pixel image data including a first sub-image and a second sub-image. The method also includes determining, for each respective pixel of the split-pixel image data, a corresponding position of a scene feature represented by the respective pixel relative to a depth of field, and identifying, based on the corresponding positions, out-of-focus pixels. The method additionally includes determining, for each respective out-of-focus pixel, a corresponding pixel value based on the corresponding position, a location of the respective out-of-focus pixel within the split-pixel image data, and at least one of: a first value of a corresponding first pixel in the first sub-image or a second value of a corresponding second pixel in the second sub-image. The method further includes generating, based on the corresponding pixel values, an enhanced image having an extended depth of field.