Patent Document ID: 9626760
Application ID: 14627502
Patent Status: 1

Claim One:
1. A system to align and merge a plurality of differently exposed digital images to create a HDR image, the system comprising: a. an embedded camera to capture a bracket of differently exposed digital images, wherein each digital image includes one or more pixel arrays; wherein the embedded camera comprises: i. a receiving module configured to receive the bracket of differently exposed digital images; ii. an image restructuring module configured to convert the received images to hue-saturation-intensity (HSI) color space and construct a pyramid shaped resolution structure for intensity channel of each captured image; iii. an alignment module configured to align each pixel of the one or more pixel arrays of each image in the pyramid shaped resolution structure of the intensity channel to derive alignment vectors for one or more regional partitions of each image across one or more levels of the pyramid shaped resolution structure, subsequently effecting a computed alignment vector on a hue and saturation channels; iv. a weight map computation module configured to weigh and qualify the pixels of the image from the alignment module to take into account colour purity and sharpness; v. a motion compensation module configured to detect and compensate artifacts in the qualified pixels due to scene subject motion; vi. a fusion module configured to merge the qualified pixels of the bracket of differently exposed digital images from the motion compensation module to represent a High Dynamic range (HDR) image; and vii. the image restructuring module further converts the HDR image in HSI color space into another color space suitable for rendering/encoding.