Abstract: A radiation shielding device to be worn in conjunction with a radiation standard apron includes a first shielded portion configured to cover the right axilla and the outer quadrants of the right breast of a user with shielding material, a second shielded portion configured to cover the left axilla and the outer quadrants of the left breast of a user with shielding material, a first arm sleeve coupled to the first shielded portion and configured to cover an underside portion of a right proximal arm of a user with shielding material, a second arm sleeve coupled to the second shielded portion and configured to cover an underside portion of a left proximal arm of a user with shielding material, and a plurality of lightweight material portions coupling the first shielded portion and the second shielded portion.

Abstract: Techniques for reducing reduce coding artifacts in video data are disclosed. In one aspect, a frame of video data is partitioned into pixel blocks, which are organized into slices. The pixel blocks of each slice are coded by a compression algorithm and an estimate of coding artifacts in the slice is made. For slices that are estimated to possess coding artifacts, the method revises coding parameters applied to pixel blocks in the slice and recodes the slice. The method substitutes recoded slices for originally-coded slices in frame, working in a priority order from a slice with the highest estimated likelihood of coding artifacts down to slices with lower estimated likelihoods of coding artifacts, measuring changes in the frame's coding size as it goes.