JPH10215405A - Electronic still camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct camera-shake of image data. SOLUTION: Image data (a) from a memory 1 are displayed on a monitor 9. A marker generating circuit 5 generates two marker data (d), which are displayed on the monitor 9. When a start point A and an end point B are pointed out and decided by using the markers on a screen, XY position data (e) for the two points A, B are outputted by a marker generating circuit 5. A camera-shake correction circuit 7 calculates an angle and a length of both the points. Then optional picture element data and picture element data within the angle and the length are read and the both are subject to convolution arithmetic operation and new picture element data are stored in the memory 1. The similar arithmetic operation is applied to all the picture element data and new picture element data are stored in the memory 1. Image data consisting of the new picture element data are displayed on the monitor 9 as a corrected image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an electronic still camera.

[0002]

2. Description of the Related Art There is an electronic still camera. This electronic still camera electrically reproduces an optically captured image as a still image.

[0003]

In a conventional electronic still camera, an image captured by shaking optically is directly reproduced as a still image.

Accordingly, the present invention relates to an electronic still camera that electrically corrects an image captured by, for example, camera shake, and reproduces the image as a still image.

[0005]

[Means for Solving the Problems]

(First Configuration Example) Storage means for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format, and the image from the storage means Display means for displaying data; first and second markers displayed at first and second positions of an image displayed on the display means; and position data of the first and second positions. And an angle and a length between the first and second positions are calculated from the position data of the first and second positions from the marker generating means. One or more pixel data within the angle and length from any pixel data or one from the arbitrary pixel data and the arbitrary pixel data at an angle of 180 degrees to the angle and within the length More than Processing means for reading out the raw data from the storage means and performing a convolution operation, and storing the pixel data resulting from the convolution operation in the storage means as new pixel data of the arbitrary pixel data; and Is characterized in that new image data is constituted by the new pixel data obtained for (2).

(Second Configuration Example) First and second image data from an image pickup device or first and second image data from the image pickup device are converted into a predetermined format by a signal processing circuit from a signal processing circuit. Storage means for storing first and second image data; display means for displaying the first and second image data from the storage means as one image; and first and second image data displayed on the display means. Marker generating means for displaying first and second markers at a second position and outputting position data of the first and second positions; and the first and second markers from the marker generating means. Calculating a vector of an angle and a length between the first and second positions from the position data of the position, reading arbitrary pixel data of the first image data in the storage means, and moving an address corresponding to the vector. New pixel data And reads out the pixel data of the second image data corresponding to the arbitrary vector data of the first image data and the vector in the storage unit, and approaches each other along the vector. Processing means for moving the address of each pixel so as to match and storing the new pixel data in the storage means, and new first and second image data based on the new pixel data obtained for all pixels by the processing means It is characterized by comprising.

(Third Configuration Example) Storage means for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format, and Display means for displaying the image data, input means for inputting angle and length data, and arbitrary pixel data and one or more pixel data within the angle and length from the arbitrary pixel data or The angle between the arbitrary pixel data and the arbitrary pixel data is 180 degrees with respect to the angle and 1 is within the length.
Processing means for reading out one or more pieces of pixel data from the storage means and performing a convolution operation, and storing the pixel data as a result of the convolution operation in the storage means as new pixel data of the arbitrary pixel data; , New image data is composed of the new pixel data obtained for all pixels.

(Fourth configuration example) First and second image data from the image pickup device or first and second image data from the image pickup device are converted into a predetermined format by a signal processing circuit from a signal processing circuit. Storage means for storing first and second image data; display means for displaying the first and second image data from the storage means as one image; input means for inputting angle and length data; Calculating a vector from the angle and length data from the input means, reading out any pixel data of the first image data in the storage means, moving an address corresponding to the vector, and storing the new pixel data as new pixel data. Means, or reads out the pixel data of the second image data corresponding to the arbitrary pixel data of the first image data and the vector of the storage means, Processing means for moving the address of each pixel so as to approach and match each other and storing it as new pixel data in the storage means; and new first and second pixel data obtained by the new pixel data obtained for all pixels by the processing means. 2 is constituted.

(Fifth Configuration Example) Storage means for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format, and Display means for displaying the image data and outputting position data; and determining the angle and length between the first and second positions from the position data of the first and second positions from the display means. Calculate,
Any pixel data and one or more pixel data within the angle and length from this arbitrary pixel data or 180 degree angle and the length from the arbitrary pixel data and the arbitrary pixel data with respect to the angle Processing means for reading out one or more pieces of pixel data within the storage means from the storage means and performing a convolution operation, and storing the pixel data resulting from the convolution operation in the storage means as new pixel data of the arbitrary pixel data. Then, new image data is constituted by the new pixel data obtained for all pixels by the processing means.

(Sixth configuration example) First and second image data from the image pickup device or the first and second image data from the image pickup device are converted into a predetermined format by a signal processing circuit from a signal processing circuit. Storage means for storing first and second image data; display means for displaying the first and second image data from the storage means as one image and capable of outputting position data; Calculating a vector of an angle and a length between the first and second positions from the position data of the first and second positions, and reading arbitrary pixel data of the first image data from the storage unit The second image data corresponding to the pixel data of the first image data stored in the storage unit by moving the address by the vector and storing the new image data as new pixel data in the storage unit. Processing means for reading pixel data, moving the address of each pixel so as to approach and match each other along the vector, and storing it in the storage means as new pixel data; and the new pixel obtained for all pixels by the processing means The data is characterized in that new first and second image data are constituted.

[0011]

FIG. 1 shows the configuration of an electronic still camera according to a first embodiment of the present invention. FIGS. 3 and 4 show examples of camera shake correction, for example.

Image data from an image sensor (not shown) or image data from a signal processing circuit (not shown) for converting the image data from the image sensor into a predetermined format is input to the memory 1. The memory 1 stores the image data in a first area.

The first and second marker data d are output from the marker generation circuit 5 and supplied to the adder 3. Further, the adder 3 is supplied with the image data a from the first area of the memory 1. The adder 3 adds the two data a and d, supplies the data to a monitor 9 such as an LCD, and
And a second marker are displayed.

An up / down wide-angle switch (not shown) sends data c for up / down, left / right, and direction control for moving the first and second markers on the monitor 9 to a marker generation circuit 5.
Supplied to The direction control data is data of a direction in which the marker is moved from top to bottom or vice versa. The direction control data is data for moving the marker from left to right or vice versa.

The upper and lower data is data on how much to move up or down. The left and right data is data on how much to move left or right.

In response to the data c for the vertical, horizontal, and directional control, the marker generating circuit 5 changes the first and second marker data d, and displays the first and second markers on the monitor 9 respectively. Move.

As shown in FIG. 3B, when the shutter button (not shown) is pressed when the first marker comes to the starting point A, the XY position determination data b is obtained from the shutter button.
It is supplied to the marker generation circuit 5. Marker generation circuit 5
Receives the XY position determination data b and determines the XY position of the start point A.

Next, when the shutter button is pressed when the second marker comes to the end point B, the XY position determination data b is supplied to the marker generation circuit 5 from the shutter button. The marker generation circuit 5 receives the XY position determination data b and determines the XY position of the end point B.

The marker generation circuit 7 supplies the XY position data e of the start point A and the end point B to the camera shake correction circuit 7.

The operation of the camera shake correction circuit 7 will now be described. When a camera shake occurs during the exposure period of one image and the image shakes, and when one image is composed of two consecutive fields of image data, the camera shake occurs during different exposure periods between the two fields of image data. Two cases in which a shake has occurred in a synthesized image due to the occurrence will be considered.

First, in the former case, the camera shake correction circuit 7
The XY position data of the start point A and the end point B is received, and the angle and length between the two points are calculated.

For the sake of simplicity, right horizontal direction (angle 0 degree direction)
Assume that camera shake (length) for 5 pixels occurs. Five pixel data of arbitrary pixel data in the memory 1 and data of four pixels in the 180-degree direction from the pixel are subjected to a convolution operation, and the result is stored in the second area of the memory 1. This is performed for all pixels.

FIG. 2 shows the principle. Pixels g1 to g
Assume that nine pixels up to 9 are data A1 to A9 when there is no camera shake. However, as shown in FIG. 2C, the pixel g1 is shifted from A1 to A5, g2 is shifted from A2 to A6, and g3 is shifted A by 5 pixels in the right horizontal direction.
.., G9 are mixed data such as A9 to A13.

Assuming that the data of pixel gX is DX, FIG.
As shown in (c), ｛(D1) × 1 + (D2) × 4 + (D3) × 6 + (D4
) × 4 + (D5) × 1｝ / 16. As a result, ｛(A1 + A9) + (A2 + A8) × 5 + (A3 + A
7) × 11 + (A4 + A6) × 15 + (A5) × 16}
/ 16 If this is used as new data of the pixel g5, the shake can be corrected although not completely. The reproduced image after the correction is shown in FIG.
It is shown in (c). Changing the weighting factor changes its accuracy. If the XY position data of the two points A and B are not appropriate and sufficient correction cannot be performed, this may be repeated.

When the camera shakes by 5 pixels (length) in the left horizontal direction (180-degree direction), arbitrary pixel data in the memory 1 and five pixel data of 4 pixels in the 0-degree direction from the pixel are stored. Performs a convolution operation and stores the result in the second
Is stored in the area. This is performed for all pixels.

Instead of using the memory 1 divided into the first and second areas, two memories may be used.

Next, the latter case will be described. FIGS. 4A and 4B show image data of the A field and the B field. When the image data of both fields is combined and displayed on one image, a camera shake phenomenon occurs. Unlike a camera shake image generated during the exposure period of one image, the image is only doubled.

For this reason, the correction is easier than the correction of camera shake generated during the exposure period of one image. That is, the camera shake correction circuit 7 receives the XY position data e of the two points A and B, and calculates the angle and length between the two points. For example, arbitrary pixel data of, for example, the A field stored in the first area of the memory 1 is read, the address is moved by the vector according to the angle and the length, and the address is newly stored in the second area of the memory 1. The address is similarly moved for all the pixels in the A field and stored as new pixel data in the second area of the memory 1.

As image data from the memory 1 to the monitor 9, the second field of the memory 1
The image data of the first area of the memory 1 is selected for the image data of the area B, and for the B field.

It is also possible to read out arbitrary pixel data in the A field, move an address by a vector based on the angle and length, and newly store the address in the first area of the memory 1. All pixels in the A field are similarly moved and stored as new pixel data in the first area of the memory 1.

In this case, as the image data from the memory 1 to the monitor 9, new image data in the first area of the memory 1 is used for the A field, and image data in the first area of the memory 1 is used for the B field. Select

Further, the arbitrary pixel data of the A field stored in the first area of the memory 1 and the pixel data of the B field at the position corresponding to the vector based on the angle and the length can be obtained by just matching the angle and the length. The addresses are moved so as to match each other, and are stored in the second area of the memory 1 as new pixel data of the A and B fields. The address is similarly moved for all the pixels in the A and B fields and stored as new pixel data in the second area of the memory 1.

In this case, as the image data from the memory 1 to the monitor 9, both the A and B fields
Select new image data in the second area. An image displayed on the monitor 9 is shown in FIG.

The arbitrary pixel data of the A field stored in the first area of the memory 1 and the pixel data of the B field at a position corresponding to the vector based on the angle and the length correspond to the angle and the length. However, the addresses may be moved so as to match each other and stored in the first area of the memory 1 as new pixel data of the A and B fields. A
Similarly, the address is moved for all the pixels in the B field and stored in the first area of the memory 1 as new pixel data.

In this case, as the image data from the memory 1 to the monitor 9, both the A and B fields
Select new image data in the first area.

Instead of using the memory 1 divided into the first and second areas, two memories may be used.

When one image is formed from two frames of image data, camera shake during different exposure periods between the two frames of image data can be corrected in the same manner as described above.

Instead of calculating the angle and length by the camera shake correction circuit 7, the marker correction generation circuit 5 may calculate the angle and length.

Also, instead of specifying the two points A as B, 1
The radius (length) and the angle may be designated by the point A and the marker B moving on a circle centered on the point A.

FIG. 5 shows a second embodiment of the electronic still camera of the present invention.
1 shows the configuration of the embodiment. The same components as in FIG.
The same reference numerals are given and the detailed description is omitted. The difference from FIG. 1 is that the user directly indicates the amount of shake.

The user supplies angle and length data f to the marker generation circuit 5 and the camera shake correction circuit 11 from the numerical value input means 11. The camera shake correction circuit 7 and the memory 1 receive the data g of the angle and the length, and perform the same operation as in the first embodiment. The marker generating circuit 5 receives the angle and length data f, outputs marker data of a vector based on the angle and length, and causes the monitor 9 to display the marker data. The user can adjust the angle and length data f output from the numerical value input means 11 while watching the display state of the image and the marker on the monitor 9.

The camera shake correction circuit 7 and the memory 1 receive the angle and length data f and perform the same operation as in the first embodiment.

FIG. 6 shows a third embodiment of the electronic still camera according to the present invention.
1 shows the configuration of the embodiment. The same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted. FIG.
Instead of the monitor 9, a pen input monitor 13 is employed. The marker generation circuit 5 is omitted.

When the user designates two points with the pen 15 while looking at the image displayed on the pen input monitor 13,
The XY position data h of each point is supplied from the pen input monitor 15 to the camera shake correction circuit 7.

The camera shake correction circuit 7 and the memory 1 store X at each point.
Upon receiving the Y position data e, the same operation as in the first embodiment is performed.

Instead of the pen input monitor 13, a touch panel monitor may be employed.

[0047]

As described above, according to the present invention, an image captured optically, for example, by shaking, can be electrically corrected and reproduced as a still image.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an electronic still camera according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an operation principle of the camera shake correction circuit 7 of FIG.

FIG. 3 is a diagram illustrating an example of correcting camera shake.

FIG. 4 is a diagram illustrating an example of correcting camera shake.

FIG. 5 is a block diagram illustrating a configuration of an electronic still camera according to a second embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of an electronic still camera according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Memory, 3 ... Adder, 5 ... Marker generation circuit, 7 ... Camera shake correction circuit, 9 ... Monitor,
11: Numerical input means, 13: Pen input monitor.

Claims (8)

[Claims] A storage unit for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format; and storing the image data from the storage unit. Display means for displaying; at first and second positions of an image displayed on the display means,
Marker generating means for displaying the first and second markers and outputting the position data of the first and second positions, and from the position data of the first and second positions from the marker generating means. Calculating an angle and a length between the first and second positions, and calculating arbitrary pixel data and one or more pixel data or the arbitrary pixel data within the angle and the length from the arbitrary pixel data; From the arbitrary pixel data, one or more pixel data at an angle of 180 degrees with respect to the angle and within the length are read out from the storage means and subjected to a convolution operation. Processing means for storing in the storage means as new pixel data of pixel data, wherein new image data is constituted by the new pixel data obtained for all pixels by the processing means Electronic still camera according to claim Rukoto. 2. The marker generation means calculates a slope and a length between the two positions from the first and second position data and supplies the calculated slope and length to the processing means. The electronic still camera according to claim 1, wherein the calculation is omitted. 3. A first and second image data from a signal processing circuit for converting the first and second image data from the image sensor or the first and second image data from the image sensor into a predetermined format. Storage means for storing image data; display means for displaying the first and second image data from the storage means as one image; and first and second positions of the image displayed on the display means ,
Marker generating means for displaying the first and second markers and outputting the position data of the first and second positions, and from the position data of the first and second positions from the marker generating means. A vector of an angle and a length between the first and second positions is calculated, and arbitrary pixel data of the first image data in the storage unit is read, and an address corresponding to the vector is moved to obtain the new pixel data as new pixel data. Any pixel data of the first image data stored in the storage means or pixel data of the second image data corresponding to the vector by the vector is read out, and the pixel data approaches and agrees with each other along the vector. Processing means for moving the address of each pixel and storing it as new pixel data in the storage means; and An electronic still camera characterized in that it consists of raw data as a new first and second image data. 4. The marker generating means calculates a gradient and length vector between the two positions from the first and second position data and supplies the vector to the processing means, and the processing means calculates the vector. The electronic still camera according to claim 3, wherein the electronic still camera is omitted. 5. A storage unit for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format, and storing the image data from the storage unit. Display means for displaying, input means for inputting angle and length data, arbitrary pixel data and one or more pixel data within the angle and length from the arbitrary pixel data or the arbitrary pixel data And from the arbitrary pixel data, one or more pixel data at an angle of 180 degrees with respect to the angle and within the length are read out from the storage means and subjected to a convolution operation. Processing means for storing in the storage means as new pixel data of the pixel data of the above, wherein the processing means obtained for all pixels by the processing means Electronic still camera characterized in that it constitutes a new image data in Shii pixel data. 6. A first and second image data from a signal processing circuit for converting the first and second image data from the image sensor or the first and second image data from the image sensor into a predetermined format. Storage means for storing image data; display means for displaying the first and second image data from the storage means as one image; input means for inputting angle and length data; A vector is calculated from the data of the angle and the length of the first image data in the storage means, and any pixel data of the first image data is read out, the address is moved by the vector, and stored as new pixel data in the storage means, Alternatively, arbitrary pixel data of the first image data and pixel data of the second image data corresponding to the vector are read out from the storage unit, and the pixel data of the second image data are read from each other along the vector. Processing means for moving the address of each pixel so as to match each other and storing it as new pixel data in the storage means; and new first and second images based on the new pixel data obtained for all pixels by the processing means. An electronic still camera comprising data. 7. A storage unit for storing image data from an image sensor or image data from a signal processing circuit for converting the image data from the image sensor into a predetermined format, and storing the image data from the storage unit. Display means for displaying and outputting position data; calculating an angle and length between the first and second positions from position data of the first and second positions from the display means; Pixel data and one or more pixel data within the angle and length from this arbitrary pixel data or 18 from the arbitrary pixel data and the arbitrary pixel data to the angle
At least one pixel data within the angle of 0 degree and the length is read out from the storage means and subjected to a convolution operation, and the pixel data resulting from the convolution operation is stored in the storage means as new pixel data of the arbitrary pixel data. An electronic still camera comprising: processing means for storing; and the new pixel data obtained for all pixels by the processing means constitutes new image data. 8. A first and second image data from a signal processing circuit for converting the first and second image data from the image sensor or the first and second image data from the image sensor into a predetermined format. Storage means for storing image data; display means for displaying the first and second image data from the storage means as one image and capable of outputting position data; and A vector of an angle and a length between the first and second positions is calculated from the position data of the second position, and arbitrary pixel data of the first image data in the storage unit is read, and the vector address is set. Moved and stored as new pixel data in the storage means, or any pixel data of the first image data in the storage means and pixel data of the second image data corresponding to the vector by the vector Processing means for moving the address of each pixel so as to approach and match each other along the vector and storing the new pixel data in the storage means, and the new pixel data obtained for all pixels by the processing means. An electronic still camera, comprising new first and second image data.