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Method of automatically zoom in and zoom out picture based on captured picture comparision for portable devices

IP.com Disclosure Number: IPCOM000244439D
Publication Date: 2015-Dec-13
Document File: 3 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

This article addressed the inconvenice of zoom in and zoom out piecture when operating a portable device with camera. It broungt a new method of automatically zoom in and zoom out picture based on captured picture comparision. It discussed the method from several perspectives including direct comparision between captured pictures, change comparision between multiple captured pictures, and boundary criteria to avoid misunderstanding to user's desire and cause devication. It also included the discussion of triggering the mode and turnning off the mode. With the graceful method, it would be more convenient to zoom in or zoom out targets by slightly moving device in short distance.

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Method of automatically zoom in and zoom out picture based on captured picture comparision for portable devices

Nowadays, people use portable devices to take pictures. When taking pictures, people usually need to zoom in or zoom out the device to take desired target into picuture. What people need to do is to manually trigger mechanical parts to zoon in or zoom out. Or people needs to use two fingers to touch screen to trigger zoom in or zoom out. Both methods needs manual operation. Or People needs to move the device forward or back by stepping, but it is not convenient when it needs to zoom in or zoom out a lot and peple needs to move device to long distance. The method of the disloure is to provide an automactic method to help people zoom in and zoom out picture based on captured picture comparision for portable devices. With the method, it provides people another option that they don't need to make manual operations or they don't need to move long distance.

This provides user a convenient and graceful method of zoom in or zoom out target by slightly moving device in very short distance .


1) Shake movement to turn on or off the mode of using the method of automatically zoom in and zoom out picture

2) When the mode is turned on, a controller will read sequential pictures captured by the device, and then detect the movement of the device to understand the desire of uses's zoom in or zoom out targets, and finally adjust lens with proper ratio to zoom in or zoom out. The analysis is mainly based on comparision of sequential pictures.

- When current picture is part of old picture , it means user's desire of zoom in.

- When old picture is part of current picture, it means user's desire of zoom out.

- When old picture equals current picture, it means user's desire of keeping the current zoom.

- When the size change is more than last size change, it means user's desire to increase the current zoom speed.

- When the size change is less than last size change, it means user's desire to decrease the current zoom speed.

- When the size change is more than last size change, it means user's desire to keep the current zoom speed.

- The boundary criteria is also covered to avoid misunderstanding to user's desire and cause devication.

The detailed method works as the following steps:


0) it consists of two parts in the methods: device with camera, and a controller to do image comparision and analysis.


1) Shake movement of the device to turn on the mode on the device

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