GenericModelBinderProvider.cs

using System;
using System.Web.Mvc;

namespace NewInMVC3.ModelBinder
{
    public class  GenericModelBinderProvider : IModelBinderProvider
    {
        public IModelBinder GetBinder(Type modelType)
        {
            var genericType = typeof (IModelBinder<>).MakeGenericType(modelType);
            return (IModelBinder) DependencyResolver.Current.GetService(genericType);
        }
    }
}

IModelBinder´1.cs

using System.Web.Mvc;

namespace NewInMVC3.ModelBinder
{
    public interface IModelBinder<T> : IModelBinder where T : class {}
}

PersonModelBinder.cs

using System.Web.Mvc;
using NewInMVC3.Models;

namespace NewInMVC3.ModelBinder
{
    public class PersonModelBinder : IModelBinder<Person>
    {
        public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            return new Person();
        }
    }
}