Learn More
This paper presents a parameter estimation method that makes H.264's weighted prediction (WP) practical for fade effects with quasi-optimal accuracy and low computational cost. Its high accuracy results from the fact that it is based on a theoretically-derived approximate relationship between ideal WP parameters and image characteristics that are robust(More)
Previous reports have suggested the existence of photoreceptors for visible radiation at the surface of the human body. Rhodopsin is a well-known photosensitive protein found in the rod cells of the retina and detects light/dark contrast. Cone opsins are also photosensitive receptors in the cone cells of the retina and detect colour. Here, we describe(More)
In a virtual weightless environment, subjects' orientation skills were studied to examine what kind of cognitive errors people make when they moved through the interior space of virtual space stations and what kind of visual information effectively decreases those errors. Subjects wearing a head-mounted display moved from one end to the other end in space(More)
OBJECTIVES The aim of this study was to determine whether (11)C-hydroxyephedrine ((11)C-HED) can predict adverse events including all-cause death in Japanese patients with left ventricular (LV) dysfunction. BACKGROUND Although (11)C-HED PET has been used to assess cardiac sympathetic innervation in various disease conditions, data on their prognostic(More)
A hip-knee-ankle-foot orthotic system called `HALO'(Hip and Ankle Linked Orthosis) for paraplegic walking has been developed in our previous study. Each ankle joint of the HALO system is linked with a medial single joint via a wire which allows both feet of the orthosis to stay always parallel to the floor during walking and assists swinging the leg. The(More)
It is an advantage to use robots in autism therapy since they provide repetitive stimuli during the learning of social skills. A detailed exploration is required to design assistive robots for autism therapy with higher effectiveness. This study has investigated the effectiveness of an interactive robot's feedback during autism therapy for improving(More)