Abstract: A grounding resistance and ground rod corrosion reducer that is capable of making use of montmorillonite, smectite, and vermiculite to apply antacid effect to acidified grounding environments, thereby decreasing a corrosion rate of a ground rod and providing an excellent grounding resistance reduction rate. The grounding resistance and ground rod corrosion reducer contains 50 to 75% by weight of a grounding resistance soil mixture made up of the montmorillonite, the smectite, and the vermiculite, 20 to 40% by weight of magnesium hydroxide, and 5 to 15% by weight of graphite, based on the total weight thereof.

Abstract: A method and apparatus for rendering an object-based audio signal considering an obstacle are disclosed. A method for rendering an object-based audio signal according to an example embodiment, the method includes identifying an object-based input signal and metadata for the input signal, generating a binaural filter based on the metadata using a binaural room impulse response (BRIR), determining, based on the metadata, whether an obstacle is present between a listener and an object, modifying the generated binaural filter when it is determined that the obstacle is present, and generating a rendered output signal by convolving the modified binaural filter and the input signal.

Abstract: A bitstream reconstruction method and apparatus are provided. The method includes constructing an initial bitstream by rendering sound source information and geometry information within a reference radius from an initial location of a user accessing a virtual space into spatial audio, collecting location information according to a movement of the user within the virtual space, and reconstructing, based on a relationship between the reference radius and a movement radius identified according to the collected location information, the initial bitstream constructed by corresponding to the initial location of the user.

Abstract: An image processing apparatus including an image acquiring unit to acquire a first image including color information and a second image having a spectral band wider than that of the first image and a noise reduction unit to extract edge information from the second image and to reduce noise of the first image based on the extracted edge information.