Camera system and method for controlling display during focus operation
A camera and action technology, which is applied to the components of the TV system, cameras, focusing devices, etc., can solve the problems of phased switching between out-of-focus images and focused images, user discomfort, and increased cost of camera components, so as to eliminate out-of-focus Image, cost reduction effect
Inactive Publication Date: 2008-02-27
ALPS ALPINE CO LTD
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Problems solved by technology
[0007] However, if an expensive component such as a distance sensor is used, there will be a problem that the cost of the camera assembly will be increased
On the other hand, if a focusing method based on contrast is used for a camera unit whose lens is moved stepwise between the normal shooting position P1 and the macro shooting position P2, the out-of-focus image and the focused image will definitely be blurred during the focusing operation. The phenomenon of periodic switching will bring discomfort to users
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[0028] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] FIG. 1 is a block diagram showing a schematic configuration of a camera system according to an embodiment of the present invention. In this figure, the camera system 1 of this embodiment includes the same camera unit as the camera unit 100 shown in FIG. 4 , and further includes a frame memory 12 having a storage capacity capable of recording at least two frames of image data. In addition, the same reference numerals as those of the camera module 100 shown in FIG. 4 are used for the constituent elements of each part of the camera module in this embodiment.
[0030] As the frame memory 12, for example, a FIFO (First-In-First-Out) memory is used, which can store at least two frames of images, and repeats the operation of outputting the top image every time one frame of images is input. Switching of the position of the lens 102 (that is, switching of...
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A camera system includes a frame memory having a capacity for storing at least two frames of image data, and stores images output from an image sensor into this frame memory on a frame-by-frame basis. The stored image data is read out and displayed on a monitor. When a shutter button is pressed halfway, a focus operation is started. An image at the point of half-pressing of the shutter button is displayed on the monitor as a still image until the focus operation is completed. Upon completion of the focus operation, the image is switched to a normal image or a macro image in a focused state. Accordingly, this prevents a blurry image from being displayed during a focus operation, thereby reducing a sense of discomfort imparted to a user that can be caused as a result of displaying a blurry image.
Description
technical field [0001] The present invention relates to a camera system and a display control method during focusing action, the camera system includes image sensors such as CCD (Charge Coupled Device, Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor), In addition to general shooting, macro shooting is also possible. Background technique [0002] In the past, among the camera units mounted on mobile phones, in addition to general photography, there are some camera units that can bring the lens close to the barcode for macro photography (or close-up) (for example, refer to Patent Document 1). As the lens movement method for switching between general photography and macro photography, there are manual methods for switching manually by the user, and electric methods for automatically switching by electric power. In the case of the manual mode, it is possible that the user forgets to set the setting, and the genera...
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IPC IPC(8): H04N5/232G03B13/36
CPCG02B7/023G03B29/00G03B13/36G02B7/38H04N5/2257H04N5/23212H04N23/57H04N23/55H04N23/673H04N23/63
Inventor 斋藤恭造
Owner ALPS ALPINE CO LTD