Image capture using luminance and chrominance sensors

Abstract

The present invention relates to an image capture using luminance and chrominance sensors. Methods and apparatuses disclosed herein relate to image sensing devices. One embodiment may take the form of an image sensing device that includes a first image sensor for capturing a luminance image, a second image sensor for capturing a first chrominance, and a third image sensor for capturing a second chrominance image. The image sensing device may further include an image processing module for combining the luminance image captured by the first image sensor, the first chrominance image captured by the second image sensor, and the second chrominance image captured by the third image sensor, to form a composite image.

Description

technical field [0001] Embodiments disclosed herein relate generally to image sensing devices, and more particularly, to image sensing devices for capturing images and having separate luminance and chrominance sensors. Background technique [0002] Certain image capture devices, such as digital cameras and video recorders, are capable of taking video or still photos, or both, by digitally recording images using electronic image sensors. Continuing reductions in the manufacturing costs of electronic imaging devices, coupled with increasing functionality and enhancements in user interfaces, have resulted in increased and widespread use. Digital cameras and / or video cameras are not only available as stand-alone devices, but can also be incorporated into other electronic devices. For example, such devices may be incorporated into computers, mobile phones, handheld computing devices, and the like. These devices can also be used as computing peripherals to allow image capture, v...

AI Technical Summary

Problems solved by technology

[0004] Although image sensing devices that place more emphasis on luminance relative to chrominance usually do not significantly impair the resolution of the generated images, if the luminance and chrominance sensors are connected to separate optical lens trains and the "luminance sensor" If the "blind" zone is offset relative to the "blind" zone of the chroma sensor, color information may be lost

An example of such a dead zone can occur due to foreground objects obscuring background objects

Also, the same foreground object may cause blindness to both the chroma sensor and the luma sensor, or the chroma blindness caused by one object may not completely overlap the luma blindness caused by the second object

In this case, color information may be lost in the "blind" area of ​​the chroma sensor, thereby compromising the resolution of the composite color image

Images