Patent ID: 8717457
Filing Date: 2014-05-06
Classification: H04N

Abstract:
1. In an image capture apparatus having a spectral imaging system which has a spectral response tunable in accordance with a spectral capture parameter to capture multi-spectral or multi-channel image data, and which includes an image sensor, a method for adjusting the spectral capture parameter for capturing successive frames of motion image data, the method comprising: generating the spectral content of the captured data by multispectral data measurements or estimation from multi-channel image data; comparing spectral content in a first region of a current frame to spectral content in a counterpart region in a previous frame having a same relative position as the first region; determining whether the spectral content has changed by more than a threshold value, based on the comparison of the spectral content in the first region and that of the counterpart region; responsive to a determination that the spectral content has changed by more than the threshold value, adjusting the spectral capture parameter for the first region based on the spectral content of the first region, and applying the adjusted spectral capture parameter to the imaging system for capture of a successive frame.