Panoramic Stitching Guide

Purpose

Panoramic +

Purpose

Panoramic stitching involves combining a collection of images into a single image.

Panoramic stitching overview

The panorama image is created by stitching a collection of several separate image into one large @@ -183,7 +183,7 @@ to capture many images to be stitched into a single panorama image, repeat the steps 5, 6 and 7.

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Panorama stitching

The CVFTracker helps to decide when to capture each of the full resolution images using the camera. The images @@ -198,7 +198,7 @@ been captured you can render the stitched image to file, image buffer, CFbsBitmap or image frame using CImagePanorama::RenderL().

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User Interface

Provide a good user interface (UI) application for the CImagePanorama is crucial. An example of UI design is described below, which gives you a robust and easy application for generating @@ -212,18 +212,18 @@ direction from left-to-right. The rotation is made around the imagined axis through mobile (axis of rotation in the image). A panorama image covers approximately a 100 degree field of view.

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Application Start

When you launch the application the UI appears as shown in the below diagram.

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Here the screen area shows the viewfinder image. When you sweep the mobile, several images are captured and then the images are stitched to create a panorama image.

Capture a panorama image during tracking

When you choose to capture a panorama image the UI changes, which is shown in the below diagram.

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In the above diagram you see three different boxes named 1, 2 and 3 which represent the position of the camera. The blue box representation changes according to the rotation of the mobile phone.

The boxes shown @@ -307,12 +307,12 @@ They are as follows:

The total panorama coverage area is divided into four different image areas:
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When you choose to capture a panorama image the following steps are performed. The first image is captured at position 0. The UI looks as follows:
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When you rotate the mobile phone clockwise, the blue box moves to the right using the translation @@ -323,18 +323,18 @@ stops. You then known that the next image is captured. At this moment the camera must be steady.

After second image is captured the blue box is moving again and vibrator is set-on. The UI looks as follows:
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Again, you rotate the mobile clockwise until the two boxes coincide and vibrator stops; third image then captured. After this, the UI looks as follows:
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You rotate the mobile phone until the boxes coincide and the fourth (last) image is captured.

Note: If the mobile phone rotation deviates from chosen (clockwise) direction or translates up and down, the blue box indicates this, and you must correct the mobile phone for the wrong movement.

At this point the stitched image can be saved or you can reset the camera, to create another panorama image:
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Camera