Abstract: Techniques are provided for implementing a system that can assist a user with parking a vehicle in a desired location using a portable device such as a smartphone or a personal navigation device. Implementations capture an image of the vehicle's surroundings when it is in the position the user wishes to parking (for example, when it is pulled far enough into a garage to allow the garage door to close). Subsequently, when the user wishes to park in that location again, one or more comparison images are captured in real time and compared to the reference image. When the current comparison image agrees with the reference image, the vehicle is in the correct position.