KidVi is an innovative AI-powered platform designed to support and enhance the visual sensory development of children aged 6-36 months. Unlike traditional methods that isolate visual aspects like light, shape, and color, KidVi offers an integrated, hands-on experience where children explore and connect 2D, 3D, and 4D concepts through intuitive hand movements. User testing shows a 68.3% recognition rate for 2D graphics, high engagement in 3D/4D scenes, and strong interest from parents and children alike.