métodos e sistemas para melhorar uma busca iterativa de estimativa de movimento usando um dispositivo de computação, para determinar um ponto central de uma próxima área de busca usando um dispositivo de computação e para evitar um mínimo local usando um dispositivo de computação

• Main Author: Munehiro Nakazato
• Format: Patent
• Language: Portuguese
• Published: 24.09.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

A next position selector for motion estimation iterative search improves the efficiency and quality of the integer-pel motion estimation iterative search by easily and quickly determining the center point of the next search area. By taking a position of the SAD value of the present search area and mapping that position to a center point of the next search area, the process of determining the next search area is very efficient. A local minimum avoidance scheme improves avoids being trapped in a local minimum. By remembering the previous position/direction, the search is able to continue in the correct direction to ensure that the search continues without a back and forth search that is trapped in a local minimum. Applications of this improved motion estimation search include stabilizing an image as well as many other applications where motion vectors are used.