JP2019200563A - Grape counting device and grape counting method - Google Patents

Abstract

To provide a grape counting device capable of imaging an entire shape of a grape cluster in a growth period with a reflection of a background being taken into consideration, and automatically counting grapes that become a determination material on whether or not to pick a grape on the basis of the picked-up image.SOLUTION: A grape counting device 10 that counts the number of grapes of a grape cluster 11 in a growth period by image analysis includes: a main unit 13 that includes an imaging spatial unit 12 in which the grape cluster 11 is held; an attachment unit 14 of an imaging device 24 placed on the main unit 13; and an antireflection member 15 placed at an opposite side to at least the attachment unit 14 across the imaging spatial unit 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grape counting apparatus and a grape counting method for counting the number of grape grains in a vine in the growing season.

  When cultivating grapes, in the initial stage of growth, observe the size and number of grapes that have grown in the bunches. Work is required. Such work is indispensable for harvesting good quality grapes, but the work relies on experience and intuition. On the other hand, the work may not be possible or may be delayed due to a decrease in the number of people involved in viticulture or an aging population. In addition, for beginners of grape cultivation, it may not be possible to perform optimum grape cultivation because it is not known what the number of grains is to be harvested.

  Patent Document 1 discloses an auxiliary tool for assisting the counting of grape grains and a counting method using the same. In this counting method, a partition plate is provided inside the bunches along the length direction of the bunches so that the bunches are partitioned in the radial direction centered on the cob as viewed from above. The number of grains appearing on one side is counted.

JP 2003-143960 A

  In the counting auxiliary tool and the counting method disclosed in Patent Document 1, by inserting the partition plate into the grape bunches, the particles are counted within the range partitioned by the partition plate. It has the advantage that it becomes easy to do. However, the counting itself is based on visual observation by humans, and the number of grains is counted redundantly depending on the insertion position of the partition plate, or the omission of counting occurs, resulting in lack of accuracy.

  In addition, since the partition plate is inserted into the grape bunches, the grown grape grains may be damaged, which may impair the quality of the grapes at the time of harvest.

  Accordingly, an object of the present invention is to capture the entire shape of the grape bunches in the growing season in consideration of the reflection of the background, and automatically count the grape grains that are used as a material for judging the harvesting based on the captured images. It is to provide a grape counting device and a grape counting method that can be performed.

  In order to solve the above-mentioned problems, a grape counting device according to the present invention is a grape counting device that counts the number of grape bunches in a growing season by image analysis, and includes a photographing space portion that accommodates the bunches. And a camera mounting part disposed in the main body part, and an antireflection material disposed at least on the side facing the mounting part across the photographing space part.

  The method for counting grapes according to the present invention is a method for counting the number of grapes in a growing bunch by image analysis. The method for counting the number of grapes in a shooting space containing the grapes is an overall shape of the grapes. The image is taken in consideration of the reflection of the background, the entire shape of the grape bunches is recognized from the captured image, the position of each grape grain is recognized from the overall shape, the size of each grape grain is detected, and each grape The detected size of the grain is compared with a set size set in advance, grapes whose detected size is within a predetermined range are counted, and the counted numerical data is displayed on the display unit.

  According to the grape counting apparatus of the present invention, since the antireflection material is provided at least on the side facing the mounting portion of the photographing machine across the photographing space portion of the main body, the grape growing in the grape bunches It can be recognized by image analysis with high accuracy. As a result, grape grains can be counted easily and accurately, and can be used as a judgment material for subsequent graining operations.

  According to the grape counting method of the present invention, the whole shape of the grape bunches accommodated in the photographing space for accommodating the vine bunches is photographed in consideration of the reflection of the background, and the counting process is performed based on the photographed images. The counting operation can be performed easily and accurately.

1 is a perspective view of a grape counting device according to the present invention. It is an assembly perspective view of the grape counting device. It is an external view which shows an example of the imaging device by which a grape grain is counted. It is a schematic flowchart of a grape grain counting method.

  The grape grain counting device and the grape grain counting method according to the present invention are intended to visually and efficiently judge the harvesting of grapes in the growing season, in particular, grapes before gibberellin treatment. In the graining operation, it is necessary to first grasp the number and size of the grape grains growing in the grape bunch. Conventionally, such work has been performed by visual observation, and by selecting experience and intuition, the location to be squeezed has been selected, but the present invention performs image analysis of image data obtained by photographing the appearance of a predetermined vine. It recognizes the number and size of grape grains, and is used as a material for judging harvesting. Hereinafter, a grape counting device and a counting method thereof will be described in detail with reference to the accompanying drawings.

  FIG.1 and FIG.2 shows the external appearance of the grape counting apparatus 10 of this invention. This grape grain counting device 10 includes a main body 13 having a photographing space 12 for accommodating grape bunches 11 growing on vines (not shown) from below, and a photographing machine 24 attached to the main body 13. Mounting portion 14 and an antireflection material 15 disposed at least on the side facing the mounting portion 14 with the photographing space portion 12 interposed therebetween. As the photographing device 24, a digital camera or a smartphone having a camera function is used.

  The grape bunches 11 to be counted according to the present invention are those for which a plurality of grape grains 30 have started to bear fruit in the growing season around early June. At this time, about several tens of unripe blue grape grains 30 are fruiting in the grape bunches 11. In the present invention, grapes to be counted include all varieties. Moreover, the counting device and counting method of the present invention are not limited to grapes, and can be applied to, for example, counting the number of fruits that bear fruit on multi-grain fruits such as plums and berries.

  The main body portion 13 includes a back surface portion 16, side surface portions 17, and a bottom surface portion 20 that are long enough to cover the entire grape bunch 11, and at least three sides of the imaging space portion 12 are the back surface portion 16 and the side surface portions 17. And is surrounded by The side facing the back surface portion 16 is a side opening 25 that serves as a photographing surface of the grape bunches 11. In addition, inclined beam portions 26 are provided at the connecting portion between the back surface portion 16 and the side surface portions 17. By providing both the beam portions 26, the entire main body portion 13 can be reinforced, and the distance difference between the grape bunches 11 and the background can be minimized. Further, the back surface portion 16 can be formed into an arc shape, and the main body portion 13 can be formed into a cylindrical shape without corner portions. In this way, by making the background distance difference uniform, the entire grape bunch 11 can be photographed clearly without any difference in brightness.

  An anti-reflective member 15 is disposed on the back surface portion 16 facing at least the mounting portion 14 with the photographing space portion 12 interposed therebetween. The antireflection material 15 is for shielding the background of the grape bunches 11 photographed by the photographing machine 24 so as to make the image clear. In this embodiment, the back surface portion 16, both side surface portions 17 and both beam portions 26 are used. Are formed on each inner surface. The antireflection material 15 is preferably a black sheet or a black paint applied to each inner surface.

  The mounting portion 14 is provided on the upper surface of the overhang portion 23 extending from the bottom surface portion 20 on the side opening 25 side. In addition, a grip portion 27 for holding the whole grape counting device 10 with one hand is provided on the lower surface of the overhang portion 23. The upper portion of the main body portion 13 is an upper surface opening 19, and the grape bunches 11 are accommodated in the imaging space portion 12 from below through the upper surface opening 19 in such a manner as to perform gibberellin processing.

  The main body 13 can be formed of a cardboard member such as cardboard or a plastic member in order to reduce the weight. In the case of forming with a cardboard member such as corrugated cardboard, it is possible to easily assemble by cutting the portions to be the back surface portion 16, the side surface portions 17 and the bottom surface portion 20 into a predetermined shape from a large sheet of corrugated paper and bending it. .

  As shown in FIG. 2, the mounting portion 14 includes a position adjusting member 21 that adjusts the mounting position of the photographing device 24 with respect to the main body portion 13, and a holder member 28 that fixes the photographing device 24. The position adjusting member 21 is formed by a pedestal surface 32 that has a long hole 34 and is placed on the projecting portion 23, and a mounting surface 33 that is bent in an L shape from the pedestal surface 32. The pedestal surface 32 is fixed to the upper surface of the grip portion 27 via a fixing screw 35 with an attachment hole 36 and a long hole 34 opening in the overhang portion 23. The holder member 28 is fixed to the mounting surface 33. The holder member 28 includes a restricting portion 37 that restricts one end of the photographing device 24 shown in FIG. 1 and a lock portion 38 that locks the other end of the photographing device 24 restricted by the restricting portion 37. It can hold | maintain according to the imaging | photography machine 24 from which a magnitude | size differs. The photographing device 24 mounted on the mounting portion 14 having such a configuration can be adjusted while moving left and right along the long hole 34 of the pedestal surface 32 so that the grape bunches 11 are in front of photographing. . In the present embodiment, the distance between the grape bunches 11 and the photographing machine 24 can be adjusted by the focus of the photographing machine 24 and is fixed, but the mounting hole 36 is a long hole perpendicular to the long hole 24. By doing so, it can be moved in the front-rear direction with respect to the imaging surface of the grape bunches 11. Thus, the entire vine 11 accommodated in the photographing space 12 can be adjusted by the photographing device 24 attached to the attaching part 14 so as to be within the photographing range.

  The photographing machine 24 is a digital camera or a smartphone with a camera. An image taken by a single digital camera is stored as image data, transferred to a personal information terminal such as a personal computer or tablet in which image analysis software is installed, and image analysis is performed. In the case of a smartphone, direct image analysis can be performed by developing the captured image data directly on image analysis software (application).

  FIG. 3 shows an example of a photographing machine (smart phone) 24 having a camera function and a data processing function. In the present embodiment, a grape grain counting process is performed using the photographing machine 24. FIG. 4 shows the flow of the counting process. Here, a modularized object detection algorithm is used, and a part of the module (such as a parameter) is appropriately set and applied to the grape counting process.

The grape grain counting method in the present embodiment is performed by the following steps.
(Step 1) Grapes bunches in the growing season are accommodated in an imaging space portion whose surroundings are shielded, and the entire shape of the accommodated vine bunches is photographed in consideration of background reflection.
(Step 2) The entire shape of the grape bunches is recognized from the captured image.
(Step 3) The position of each grape grain is recognized from the overall shape of the grape bunches, and the size of each grape grain is detected.
(Step 4) The detected size of each grape grain is compared and collated with a preset size.
(Step 5) Count grapes whose detected size is within a predetermined range.
(Step 6) The counted numerical data is displayed.

Next, the processing contents of each step will be described.
In (Step 1), first, the camera 24 such as a smartphone is mounted on the mounting unit 14. This attachment is set on the holder member 28 so that the camera lens of the photographing machine 24 faces the photographing space portion 12. The photographing machine 24 moves the position adjusting member 21 left and right so that the entire shape of the grape bunches 11 accommodated in the photographing space portion 12 is accommodated. This position adjustment is performed according to the specifications such as the shape and size of the grape bunches 11 to be photographed or the focus distance of the photographing machine 24 to be used. In this way, the grape counting device 10 to which the photographing machine 24 is mounted grasps and holds the grip portion 27 and photographs a predetermined grape bunches 11 growing on the vine from the upper surface opening 19 of the main body portion 13. It is accommodated in the space 12. After the housing is completed, the shutter of the photographing device 24 is pushed to start photographing.
In (Step 2), the photographed image is binarized in monochrome and the overall shape of the grape bunches 11 is recognized.
In (Step 3), the position and size of the grape grain 30 excluding the branch portion from the entire shape of the grape bin 11 that has been binarized in monochrome are detected.
In (Step 4), the detected grape grain is compared with the preset target grape grain size, and the detected grape grains within the set size are picked up and marked. To do.
In (Step 5), the marked grapes are numbered and the number is counted.
In (Step 6), the counted grape grains are displayed on the display unit 22 of the photographing machine 24 or another monitor. As a result, the number of grape grains growing in the grape bunches 11 to be counted can be confirmed in real time, and a judgment material such as harvesting can be obtained on the spot.

  The processing in the above step 1-6 is to confirm the number of grapes in one target grape bunch and to make a decision such as culling on the spot, but the photographing device 24 has a GPS function. If it is, the position information of the grape bunches 11 subjected to the counting process can be obtained. For example, the number of grape grains can be displayed on a map or the like for each grape bunch that has been counted. This makes it possible to grasp the number of grape grains that are fruiting for each grape cluster in the entire vine to be managed, and can be used as a judgment material for collective harvesting or the like.

  As described above, the grape grain counting device and the counting method according to the present invention have the antireflection material 15 in the imaging space portion 12 that accommodates the vines growing on the vines. This makes it possible to clearly capture an image that is the basis for counting grape grains. As a result, a highly accurate grape grain counting process has become possible. Moreover, since the main body 13 can be composed of a back surface portion and both side surface portions that surround at least three sides of the grape bunch 11, it can be easily formed using cardboard or the like, and the product cost can be kept low. Furthermore, since the position adjusting member 21 is provided in the mounting portion 14 of the photographing machine 24, various digital cameras and smart fins having different shapes and sizes can be used.

DESCRIPTION OF SYMBOLS 10 Grape counter 11 Grape bunch 12 Image | photographing space part 13 Main body part 14 Mounting part 15 Antireflection material 16 Back surface part 17 Side surface part 19 Upper surface opening 20 Bottom surface part 21 Position adjustment member 22 Display part 23 Overhang | projection part 24 Imaging machine 25 Side surface Opening 26 Beam portion 27 Grip portion 28 Holder member 30 Grape grain 32 Base surface 33 Mounting surface 34 Long hole 35 Fixing screw 36 Mounting hole 37 Restriction portion 38 Lock portion

Claims (7)

A grape counting device that counts the number of grape vines in a growing season by image analysis,
A main body having an imaging space for accommodating the grape bunches;
A mounting part of a photographing machine arranged in the main body part,
A grape counting apparatus comprising: an antireflection material disposed on at least a side facing the mounting portion with the photographing space portion interposed therebetween.   The grape counting apparatus according to claim 1, wherein the mounting portion includes a position adjusting member that adjusts an attachment position with respect to the main body portion.   The grape counting apparatus according to claim 2, wherein the position adjusting member is arranged to be movable left and right or front and rear with respect to a photographing space portion that accommodates the grape bunches of the main body portion.   4. The grape counting apparatus according to claim 1, wherein the main body portion has a back surface portion and both side surface portions, and at least three sides of the imaging space portion are surrounded by the back surface portion and the both side surface portions.   The grape counting apparatus according to claim 4, wherein the back surface portion and the both side surface portions have an antireflection material on an inner surface.   The grape body counting device according to any one of claims 1, 3, and 4, wherein the main body has an opening for accommodating a bunch of grapes in the photographing space. A grape counting method for counting the number of grape bunches in a growing season by image analysis,
Taking a reflection of the background, taking a picture of the overall shape of the grape bunches housed in the shooting space that houses the bunches
Recognize the whole shape of the grape bunches from the images taken,
While recognizing the position of each grape grain from its overall shape, it detects the size of each grape grain,
Compare and match the detection size of each grape grain with the preset size,
Counts grapes with a detection size within a specified range,
A grape counting method for displaying the counted numerical data on a display unit.