EP3172697A1 - Vorrichtung zur optischen geschlechtserkennung eines schlachtschweins - Google Patents

Vorrichtung zur optischen geschlechtserkennung eines schlachtschweins

Info

Publication number
EP3172697A1
EP3172697A1 EP15753309.2A EP15753309A EP3172697A1 EP 3172697 A1 EP3172697 A1 EP 3172697A1 EP 15753309 A EP15753309 A EP 15753309A EP 3172697 A1 EP3172697 A1 EP 3172697A1
Authority
EP
European Patent Office
Prior art keywords
depth camera
slaughter pig
detection area
slaughter
pig
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15753309.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter Schimitzek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CSB System AG
Original Assignee
CSB System AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSB System AG filed Critical CSB System AG
Publication of EP3172697A1 publication Critical patent/EP3172697A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A22BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22BSLAUGHTERING
    • A22B5/00Accessories for use during or after slaughtering
    • A22B5/0064Accessories for use during or after slaughtering for classifying or grading carcasses; for measuring back fat
    • A22B5/007Non-invasive scanning of carcasses, e.g. using image recognition, tomography, X-rays, ultrasound
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/50Depth or shape recovery
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands

Definitions

  • the invention relates to a device for the optical detection of the sex of a slaughter pig on the basis of phenotypic sexual characteristics.
  • the present invention is based, in particular, on the general problem that male pigs for slaughter often have a strong inherent odor, which is generally undesirable for meat processing, the so-called boar odor.
  • an odor detection is technically complex and thus relatively expensive and time-consuming, especially if it is carried out on all slaughter pigs in a slaughter pig processing, so as to exclude the undesirable boar odor before the corresponding further processing of slaughter pigs.
  • its sex may be determined in order to exclude a potentially expected odor load on the slaughter pig.
  • One possible way of sexing is to have them manually performed by a suitable staff and then supply the slaughter pigs the appropriate matching processing unit.
  • EP 2 168 430 A1 discloses a method for monitoring pigs which provides an optical detection system in a monitoring station by means of which body measurements of a pig standing in the monitoring station are detected and made available for evaluation.
  • the pig is then typed.
  • a typing by gender is described, whereby the characteristic of the body structure such as hull length, shoulder width, formation of the ham and so on are used.
  • the method described here disadvantageously causes uncertainties due to the breed-specific and exemplary dispersion of body measurements and proportions. Furthermore, it is known from the prior art to make a sex determination in slaughter pigs on the basis of the bacon level or the meat connection on the stomach. Also such methods are associated with a limited determination security.
  • the object of the present invention is to provide a device for an automatic, rapid and at the same time efficient and cost-effective classification of the phenotypic sex of a slaughter pig within a slaughter pig processing. The object is achieved by a device for optical sex recognition of a slaughter pig with the features listed in claim 1. Preferred developments emerge from the subclaims.
  • slaughter pig examples include boar or fuller, male castrated (also called Borg), male with wholly or partially internal testicles (also called Binneneber) and female (also called sows) understood.
  • classification is understood as meaning the determination of the phenotypic sex.
  • slaughter pig to be determined according to phenotypic sex is kept suspended on a tube run during processing.
  • the slaughter pig is taken with the hind legs on hooks, which lie next to each other in the axis of movement, whereby the surface of his genital region is substantially aligned so that it is visible from a orthogonal to the tube path view.
  • genital regions are understood to mean all regions of the surface of a slaughter pig on which male or female genital organs are positioned, so that, depending on whether female or male slaughter animals are present, geographically different regions may be affected.
  • the collection of the genital region of the slaughter pig described below takes place before the fission.
  • a device for optical sex recognition of a slaughter pig has a depth camera with a depth camera detection area, wherein within the depth camera detection area the genital region of the slaughter pig is optically detectable and within the depth camera detection area spatial coordinates of pixels can be detected.
  • the spatial coordinates of the captured pixels are composed of their area coordinates (x, y) and a depth value (z) and are provided in a transferable manner by the depth camera.
  • the capture of the pixels by the depth camera is carried out according to the invention in real time.
  • the depth camera is preferably capable of detecting the pixels with their spatial coordinates in the depth camera detection area simultaneously or in such a short period of time that the movement of the slaughter pig by means of the tube path does not impair the detection of an evaluable image.
  • the device according to the invention further comprises a positioning device, by means of which the depth camera can be positioned relative to the genital region of the slaughter pig.
  • the positioning of the depth camera relative to the slaughter pig preferably takes place in such a way that a vertical optical detection of the genital region, that is directed from above onto the hanging slaughter animal, is made possible. It has been found in this context that in the case of a vertical optical detection of the genital region, the detectable differences in depth have their maximum formation and thus in this way optimal detection of the sexual characteristics of the slaughter pig can be provided. However, it is also possible to position the depth camera diagonally from above.
  • the device according to the invention has an evaluation unit which is wired or wirelessly connected to the depth camera and by means of which the spatial coordinates 3D image of the genital region provided by the depth camera can be detected.
  • the evaluation unit On the basis of the spatial coordinates of the 3D image, the evaluation unit is able to determine the phenotypic sex of the slaughter pig and thus classify it accordingly.
  • the characteristics essential for a recognition of the phenotypic sex are extracted from the spatial coordinates and the classification of the slaughter pig is then preferably carried out on the basis of a heuristic decision rule or on the basis of a previously defined classifier.
  • the result of the classification of the slaughter pig can be output by the evaluation unit, for example by means of a code or in plain text, or provided as a control signal for further processing of the slaughter pig to external units, for example sorting units.
  • the classification result can be stored in an internal or external database with assignment to an identification code of the slaughter pig.
  • a 3D image obtained by the depth camera can be stored in association with the identification code of the slaughter pig.
  • the invention is based on the recognition of the spatial formation of the external sex organs of the slaughter pig.
  • the evaluation unit is also able to make a distinction between the slaughter pig and an ambient background based on the depth values of detected spatial coordinates, without the need for additional resources.
  • This has the advantage that in particular no background panel or special illumination is required.
  • there is no need for a means for an exact distance positioning of the slaughter pig since the information about the distance by the depth detected by the depth camera depth value is already present and can be included in the evaluation.
  • an initialization of the detection and subsequent classification can take place without additional means.
  • the depth camera relative to the pig is preferably arranged so that in addition to the genital region and the thigh approaches the slaughter pig can be detected.
  • the evaluation unit when passing the slaughter pig on the apparatus according to the invention, the evaluation unit in the present case distinguishes between distant depth values of detected pixels of the surrounding environment. background and near depth values of captured pixels of the slaughter pig. In this way, a special advantage of the device by the evaluation unit made a detection of the movement of the slaughter pig on the tube path and, when recognizing the slaughter pig due to the changing depth values, an initialization of the sex region detection are performed. Additional devices or measures for initialization can thus advantageously be dispensed with.
  • the evaluation unit is also made possible to narrow the acquired depth values, in particular to a potential vaginal, testicular or penile region, in order to display only these relevant regions in the 3D image in this way ,
  • a detection process to capture a plurality of images or image sequences from the depth camera, and the spatial coordinate data of the plurality of images or image sequences to be acquired by the evaluation unit and used for the classification, so that the security of the result is increased.
  • the spatial resolution can be increased and occlusion effects can be reduced.
  • a particular advantage of the device according to the invention over known systems also lies in the fact that a determination of the phenotypic sex in-line and in real time is feasible by the detection takes place directly on the guided on the tube train pig and the classification result is temporally present and is available for decisions for further processing and for valuations.
  • decomposition requirements can be derived, as certain yields, for example the lean meat content, are related to the sex of the slaughter pig.
  • the classification result can be stored directly in a database and is thus available for further verification and verification purposes as well as for further evaluations.
  • the depth camera is designed as a stereo camera system with a pattern projector.
  • the depth camera is capable of producing an artificial texture on the surface of the slaughter pig, especially in the area of the genital region.
  • the pattern projector can be designed, for example, as a strip projector.
  • the depth camera described here as a stereo camera system
  • the costs for the device according to the invention and a gender recognition that can be carried out with it can be kept low.
  • the depth camera is designed as a time-of-flight camera, hereinafter also abbreviated to a TOF camera.
  • TOF camera offers the advantage in particular that high frame rates can be achieved by this, in that the entire, relevant area of the slaughter pig can be imaged in one shot and thus in a very short time.
  • a TOF camera is therefore particularly suitable for the inventively provided real-time detection of the genital region of the
  • TOF cameras usually have a simple structure and can therefore be provided relatively inexpensively.
  • the depth camera is a first depth camera and the depth camera detection area is a first depth camera detection area.
  • the first depth camera is in this case arranged opposite the slaughter pig so that in the first depth camera detection area, the genital region in a
  • Rear back part view is optically detectable and corresponding back-side terteil workede pixels can be detected with their spatial coordinates.
  • the device has a second depth camera with a second depth camera detection range.
  • the second depth camera is arranged opposite the slaughter pig so that the genital region of the slaughter pig can be detected in an abdominal view in the second depth camera detection area, and corresponding abdominal pixels with the spatial coordinates can be detected.
  • the spatial coordinates from the respective depth camera detection area are provided in a transferable manner by the depth cameras and detected by the evaluation unit, preferably in a uniform coordinate system.
  • the back-rear view provides an optimal view of pronounced testicles or female genitalia
  • the abdominal view forms an optimal view of the testicles, which concealed in an internal seal relatively inconspicuous in a skin fold of the slaughter pig and thus externally recognize only as a curvature are.
  • the combination of two depth cameras with opposing depth camera detection areas offers the advantage that the genital region of the slaughter pig can be detected from different views and thus the result reliability of sex determination can be additionally optimized.
  • the device has an image camera with an image camera detection area, in which light intensity values of pixels on the surface of the slaughter pig in the region of the genital region can be detected.
  • the image camera is in this case connected to the evaluation unit and can be positioned relative to the depth camera by means of the positioning device such that the image camera detection area and the depth camera detection area at least partially overlap in a common detection area.
  • each depth camera can be assigned a corresponding image camera.
  • the captured pixels are transferred from the image camera to the evaluation unit and visualized by them as an image of the genital region.
  • the image provided is used in particular for checking the gender recognition result and for archiving purposes.
  • the image camera can also be designed, for example, as a color value camera so that the image provided by the evaluation unit is present as a color image.
  • FIG. 1 schematic diagram - side view
  • Fig. 1 shows the device according to the invention for optical sex recognition of a slaughter pig 1 in a side view.
  • the slaughter pig 1 is in the course of its processing along a pipe run 7 on the device past.
  • the classification of the optical sex recognition within the processing of the slaughter pig 1 takes place here after brewing, scratching machine, flame oven and whips, but in any case before the split.
  • Such a classification of the optical sex recognition offers in particular the advantage that already existing hairs or impurities on the slaughter pig were removed by the pretreatments and thus an optimal sex recognition can be provided.
  • the device according to the invention has a depth camera 2 with a depth camera detection area 3, in which a genital region 4 of the slaughter pig 1 can be detected.
  • spatial coordinates of pixels can be detected in the depth camera detection area 3, wherein the spatial coordinates are composed of the respective area coordinates (x, y) and a depth value (z) of the pixels and the spatial coordinates of the pixels are detected in real time.
  • the spatial coordinates are provided by the depth camera 2 transferable, wherein the provision of the spatial coordinates preferably also takes place in real time.
  • the device further comprises a positioning device 5, by means of which the depth camera 2 can be positioned in the required orientation relative to the genital region 4.
  • the positioning of the depth camera 2 is carried out in this embodiment such that it detects the genital region 4 obliquely from above.
  • the device according to the invention has an evaluation unit 6, which is connected to the depth camera 2 and is capable of detecting the spatial coordinates provided by the depth camera 2.
  • the evaluation unit 6 carries out an evaluation of the detected spatial coordinates, phenotypic sexual characteristics such as, for example, a testicular region or female genitalia being determined in particular on the basis of the depth values of the spatial coordinates.
  • a classification of the slaughter pig 1 is carried out by the evaluation unit 6, for example on the basis of a previously defined classifier, according to Eber, Borge, Sau or Binneneber and the classification result is output.
  • the output of the classification result is sent to a monitor, which displays the classification result by naming the phenotypic sex of the slaughter pig 1.
  • the classification result is transferred to a central computer with a connected database and assigned to the identification code of the slaughtered animal.
  • the evaluation unit recognizes automatically when the pig 1 is moved by means of the tube track 9 into the depth camera detection area 3 of the depth camera 2 and initializes the image acquisition and the subsequent evaluation.
  • Fig. 2a shows the device according to the invention in a further embodiment as a plan view.
  • the depth camera 2 is designed as a stereo camera system with two lenses 2.3 and 2.4.
  • each objective 2.3, 2.4 has its own detection region 3.3, 3.4, in which case the depth camera detection region 3 represents the region in which the detection regions 3.3, 3.4 of the two objectives 2.3, 2.4 of the depth camera 2 overlap.
  • Fig. 2b shows the device according to the invention in a further embodiment as a plan view, which is a modification to the embodiment shown in Fig. 2a.
  • the depth camera 2 is designed as a stereo camera system with two objectives 2.3 and 2.4, wherein each objective 2.3, 2.4 in this case has its own detection range 3.3, 3.4, wherein, as in FIG. 2a, the depth camera detection range 3 represents the range in which the detection areas 3.3, 3.4 of the two lenses 2.3, 2.4 of the depth camera 2 overlap.
  • the objectives 2.3, 2.4 of the depth camera 2 in the present case are arranged so that the genital region 4 of the slaughter pig 1 can be detected obliquely from above.
  • the depth camera 2 also has a pattern projector 7, by means of which a texture 8, for example a striped pattern, can be projected onto the surface of the slaughter pig 1, in particular in the region of the genital region 4.
  • a texture 8 for example a striped pattern
  • FIG. 3 shows a further embodiment of the device according to the invention in a plan view.
  • the depth camera 2 is designed as a first depth camera 2.1 having a first depth camera detection range 3.1, wherein in the first depth camera detection range 3.1 the genital region 4 of the slaughter pig 1 can be detected in a back-rear view.
  • the device additionally has a second depth camera 2.2 with a second depth camera detection range 3.2.
  • the second depth camera 2.2 is in this case arranged such that in the second depth camera detection area 3.2, the genital region 4 of the slaughter pig 1 can be detected in an abdominal view.
  • the depth cameras 2.1 and 2.2 can be positioned in a positionally congruent manner by means of the positioning device 5, so that the genital region 4 of the slaughter pig 1 can be detected on both sides as a particular advantage and thus the sex recognition result of the device according to the invention can be optimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Food Science & Technology (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
EP15753309.2A 2014-07-22 2015-07-16 Vorrichtung zur optischen geschlechtserkennung eines schlachtschweins Withdrawn EP3172697A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014005891.1U DE202014005891U1 (de) 2014-07-22 2014-07-22 Vorrichtung zur optischen Geschlechtserkennung eines Schlachtschweins
PCT/DE2015/000355 WO2016011992A1 (de) 2014-07-22 2015-07-16 Vorrichtung zur optischen geschlechtserkennung eines schlachtschweins

Publications (1)

Publication Number Publication Date
EP3172697A1 true EP3172697A1 (de) 2017-05-31

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EP15753309.2A Withdrawn EP3172697A1 (de) 2014-07-22 2015-07-16 Vorrichtung zur optischen geschlechtserkennung eines schlachtschweins

Country Status (11)

Country Link
US (1) US10165782B2 (ko)
EP (1) EP3172697A1 (ko)
KR (1) KR20170033861A (ko)
CN (1) CN106535644B (ko)
AU (1) AU2015294689A1 (ko)
BR (1) BR112017001298B1 (ko)
CA (1) CA2953852C (ko)
DE (2) DE202014005891U1 (ko)
MX (1) MX362577B (ko)
RU (1) RU2704715C2 (ko)
WO (1) WO2016011992A1 (ko)

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CN108391602B (zh) * 2018-04-25 2023-06-06 中国农业科学院农业信息研究所 一种雏鸡性别识别系统及其识别方法
CN110189145A (zh) * 2019-05-15 2019-08-30 广州影子科技有限公司 追溯方法、追溯装置、追溯系统和计算机可读存储介质
KR102648469B1 (ko) * 2022-12-19 2024-03-18 주식회사 메디치소프트 인공지능 기반의 돼지 도체 등급 판정 시스템 및 그의 동작 방법

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Also Published As

Publication number Publication date
DE112015003385A5 (de) 2017-04-27
US20180035679A1 (en) 2018-02-08
BR112017001298B1 (pt) 2022-12-06
CN106535644B (zh) 2019-05-14
RU2017104849A (ru) 2018-08-22
CN106535644A (zh) 2017-03-22
CA2953852C (en) 2022-04-05
MX2017000948A (es) 2017-05-01
US10165782B2 (en) 2019-01-01
RU2017104849A3 (ko) 2019-02-11
RU2704715C2 (ru) 2019-10-30
AU2015294689A1 (en) 2017-01-19
CA2953852A1 (en) 2016-01-28
DE202014005891U1 (de) 2015-10-27
BR112017001298A2 (pt) 2018-01-30
KR20170033861A (ko) 2017-03-27
MX362577B (es) 2019-01-22
WO2016011992A1 (de) 2016-01-28

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