JP2012050050A - Image display system and image display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panning image with a few image blur.SOLUTION: A subject is imaged by using a camera having an imaging element with a higher resolution than that of an image display machine. In display on the image display machine, an arbitrary position is displayed by using a function of an ROI. The panning image with a few image blur is displayed on the image display machine by changing the position of the ROI between a frame and a next frame.

Description

  The present invention relates to an image display system and an image display method for capturing an image of a subject with a camera and displaying a panning image thereof.

  Panning is known as one of the subject imaging techniques. This is used when shooting to follow a moving object, or when turning the camera from one area of the subject to another and shooting the image so that it is licked without breaks. .

JP 2006-115322 A

  In general, when performing panning, an image is acquired by swinging the direction of a fixed camera. This panning operation is performed manually or by an electric pan head or the like. However, since this panning operation involves a mechanical operation, image blurring may occur even if it is slight.

  Conventionally, as described in Patent Document 1, blurring is corrected using a camera operation detection unit, or correction is performed by image processing after imaging, which is troublesome.

  The present invention simply acquires and displays a panning image.

  In order to achieve the above object, an invention according to claim 1 is an image display system that images a subject and displays a panning image, and includes a camera having an ROI function and an image captured by the camera. Between the panning image area setting means for setting the panning start image area and the panning end image area in the image, and the panning start image area and the panning end image area. And a frame number setting means for setting the number of frames.

  The invention according to claim 2 is the image display system according to claim 1, further comprising panning path setting means for setting a panning path between the panning start image area and the panning end image area.

  The invention according to claim 3 is the image display system according to claim 1 or 2, further comprising panning speed setting means for setting a panning speed between the panning start image area and the panning end image area. .

  According to a fourth aspect of the present invention, there is provided an image display method for capturing a subject and displaying a panning image, the step of capturing the subject with a camera having an ROI function and acquiring the captured image, and panning in the captured image A panning image region setting step for setting a start image region and a panning end image region, a frame number setting step for setting the number of frames between the panning start image region and the panning end image region, and a panning start image region and a panning end in the image Dividing the area between the image areas by the number of frames, and sequentially displaying the images of the divided image areas from the panning start image area to the panning end image area on an image display device having a lower resolution than the camera. An image display method characterized by this.

  According to the present invention, a panning image without blurring can be acquired with a simple configuration.

1 is an image display system according to an embodiment of the present invention. It is a camera picked-up image image in one Example of this invention. It is an image area | region setting image in one Example of this invention. It is a panning image frame image (straight line) in one Example of this invention. It is a panning image frame image (curve | curve) in one Example of this invention. It is an operation | movement flowchart in one Example of this invention. It is a panning image display image (straight line) in one Example of this invention. It is a panning image display image (curve | curve) in one Example of this invention.

  Examples of the present invention will be described below. First, the configuration of an image processing system according to an embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 1, the camera 1 is connected to a computer 3 via a cable 4. The computer 3 includes a CPU, a RAM, a ROM, and a hard disk, and has a function of causing the camera 1 to image a subject and processing the captured image, displaying an image on the image display device 2, and performing various processes described below. Have.

  In this embodiment, the camera 1 has a ROI (Region of Interest) function, the resolution is 5120 × 5120 pixels, the resolution of the image display device 2 is 1920 × 1080 pixels, and the image display device 2 is more than the camera 1. Is also considered low resolution. The ROI function is a function that designates an arbitrarily set attention area on one screen as a reading area and does not necessarily read out an unnecessary part.

  FIG. 2 shows a camera captured image 5 in which the camera 1 images a subject, and the area is 5120 × 5120 pixels as described above. FIG. 3 shows a panning operation start image region 6 and a panning end image region 7, each of which has 1920 × 1080 pixels, and has the same number of pixels as the resolution of the image display device 2.

  4 and 5 show a panning image display image (straight line) and a panning image display image (curve), respectively. The rectangle indicated by each dotted line indicates the ROI area. By sequentially displaying each area on the image display device 2 as will be described later, in FIG. 4, the imaging location is determined by shaking the camera linearly. The image is displayed as changed, and in FIG. 5, the image is displayed as if the imaging location was changed by shaking the camera in a curved shape.

  Next, the operation flow of the present invention will be described in detail with reference to FIG. First, in step S1, a subject is imaged by the camera 1. Next, a panning operation start image area 6 is set in step S2, and a panning operation end image area 7 is set in step S3. Next, in step S4, the number of frames for moving the ROI region from the panning operation start image region 6 to the panning operation end image region 7 is set. In the present embodiment, the number of frames is set to 5 as shown in FIGS.

  Next, in step S5, a panning path from the panning operation start image region 6 to the panning operation end image region 7 is set. In this embodiment, the panning path can be selected as a straight line as shown in FIG. 4 or a Pezier curve as shown in FIG. The curve is not limited to the Pezier curve, but may be a known curve such as a quadratic curve or a spline curve.

  Next, in step S6, a panning speed pattern from the panning operation start image region 6 to the panning operation end image region 7 is set. The panning speed pattern in the present embodiment includes the concept of speed and acceleration. That is, when displaying each frame (ROI region) in the panning path from the panning operation start image region 6 to the panning operation end image region 7 as shown in FIGS. 7 and 8, for example, images are displayed at regular intervals. By switching, the images are displayed so as to be panned at a constant speed, and the display interval of the images is gradually shortened from the panning operation start image area 6 to the fourth frame, and the image from the fifth frame to the panning operation end image area is gradually reduced. By gradually increasing the display interval, it is possible to display with an accent that the panning operation has accelerated or decelerated.

  When the respective settings are made after each of the above steps, the computer 3 calculates processing required for the panning operation and causes the image display device 2 to display each frame in order. For example, when the setting is made as shown in FIG. 4 of the present embodiment, the image display device 2 displays the panning path from the panning operation start image area 6 to the panning operation end image area 7 as shown in FIG. It is possible to display an image as if the imaging location was changed by linearly shaking the camera. Further, when the setting is made as shown in FIG. 5, the image display device 2 displays as shown in FIG. 8 on the panning path from the panning operation start image area 6 to the panning operation end image area 7, and the camera appears as if It is possible to display an image in which the imaging location is changed by shaking in a curved line, and it is possible to obtain a panning image with little image blurring.

  DESCRIPTION OF SYMBOLS 1 ... Camera, 2 ... Image display device, 3 ... Computer, 4 ... Cable, 5 ... Image picked up by camera, 6 ... Panning operation start image area, 7 ... Panning operation end image area

Claims (4)

An image display system that images a subject and displays a panning image,
A camera with an ROI function;
A setting area of an image captured by the camera can be displayed, and an image display with a lower resolution than the camera;
Panning image area setting means for setting a panning start image area and a panning end image area in the image;
Frame number setting means for setting the number of frames between the panning start image area and the panning end image area;
An image display system comprising:   The image display system according to claim 1, further comprising a panning path setting unit that sets a panning path between the panning start image area and the panning end image area.   The image display system according to claim 2, further comprising a panning speed pattern setting unit that sets a panning speed pattern between the panning start image area and the panning end image area. An image display method for capturing a subject and displaying a panning image,
Capturing a captured image by imaging a subject with a camera having an ROI function;
A panning image region setting step for setting a panning start image region and a panning end image region in the captured image;
A frame number setting step for setting the number of frames between the panning start image region and the panning end image region;
Dividing the area between the panning start image area and the panning end image area in the image by the number of frames, and
An image display method, wherein images of the divided image areas are sequentially displayed from the panning start image area to the panning end image area by an image display device having a resolution lower than that of the camera.

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