Patent ID: 7702163
Filing Date: 2010-04-20
Classification: H04N

Abstract:
1. A camera system, comprising: an image capturing unit for taking an image of an object and outputting image data, and an image signal processing apparatus performing predetermined processing on the image data; wherein the image signal processing apparatus includes a signal processing unit dividing input image data to a plurality of bit resolution parts and performing a compression processing by adopting a predetermined compression method to each divided part, wherein the signal processing unit divides image data to higher-order side bits and lower-order side bits, and performs a lossless compression on the divided higher-order side bits based on a lossless compression method, and wherein the signal processing unit performs a band compression processing for attaining a targeted compression rate, performs a lossless compression on the divided lower-order side bits when the targeted compression rate is attained by a compression processing based on a lossless compression method, and performs a compression processing on the divided lower-order side bits based on a lossy compression method only when the targeted compression rate is not satisfied by the lossless compression.