Abstract: A video camera system has a multi-track recording mode in which captured digital video frames each have a first sub-frame having a first exposure level and a second sub-frame having a second exposure level different than the first exposure level. For each respective frame of a plurality of digital video frames in the stream, for each respective pixel of a plurality of pixels in the frame, the camera is configured to analyze pixel data for the respective pixel from the first sub-frame and pixel data for the respective pixel from the second sub-frame to determine whether to adjust an amount of blend from a first blending amount to a second blending amount. The camera uses the amount of blend to blend the respective pixel of the first sub-frame together with the respective pixel of the second sub-frame to generate a blended pixel.

Abstract: A virtual production system has a first computing device coupled to a first virtual production display device. A processor executes a virtual production control engine that controls the first virtual production display to alternatingly display at first and second virtual production backgrounds. When the first video camera is operating in a multi-track virtual production recording mode, the processor receives a stream of digital video image frames from a video camera. First frames in the stream capture the first virtual production background and second frames alternating with the first frames capture the second virtual production background. The processor separates the stream of the digital video image frames into a first track of the first frames and a second track of the second frames. The processor organizes the first and second track into separate monitoring streams and/or recorded files.

Abstract: A testing pad comprising a water-resistant base layer, a water-transmissive top layer coupled with said base layer, an hydrophilic intermediate layer contained between said top layer and said base layer, and a color-changing chemical reagent contained between said top layer and said base layer adapted an configured to allow an animal or person to urinate on the testing pad and the chemical reagent to present testing results related to the presence, absence and/or concentration of substances within the urine.

Abstract: A testing pad comprising a water-resistant base layer, a water-transmissive top layer coupled with said base layer, an hydrophilic intermediate layer contained between said top layer and said base layer, and a color-changing chemical reagent contained between said top layer and said base layer adapted an configured to allow an animal or person to urinate on the testing pad and the chemical reagent to present testing results related to the presence, absence and/or concentration of substances within the urine.

Abstract: A toilet system includes a water storage tank that stores fresh water used in the flush cycle. The water storage tank is divided into two compartments by a partition wall, and an air evacuating system is located in one of the compartments, while a flush control system and flush water are located in the other compartment. The air evacuating system includes a blower connected to an air passage way located in the toilet bowl and to the waste water disposal conduit. Air from inside the toilet bowl is moved to the waste water disposal conduit.