The 5MP Memeto camera can be attached to your shirt and document everything you see by taking a snapshot every 30 seconds. For more details, check the Memoto Lifelogging Camera project on Kickstarter:
Truesense Imaging launched KAI-02170 1" CCD sensor with 1080p (1920 x 1080) resolution (up to 60 fps) and KAI-04070 4MP sensor (2048 x 2048) based on 7.4um pixels in a 4/3 optical format (up to 28 fps).