Measurement of fruit particles
Apparatus and methods to characterize and measure fruit pieces in food products are provided. A sample is spread on a viewing cell and illuminated. The image is captured by a camera and fed to a computer with imaging software. Information useful for quality control purposes and process control is obtained.
1. Apparatus for the measurement of fruit particles in a matrix without removing the fruit particles from this matrix, comprising:
a substantially opaque cabinet;
a sample tray adapted to receive a fruit matrix of fruit particles which are within a matrix selected from the group consisting of a sugar matrix, a starch matrix or a sugar and starch matrix, said fruit matrix being of the kind used in fruit fillings, toppings, dairy products or cooked food products;
a camera in the upper portion of said cabinet for taking an image of the fruit particles while they remain within the fruit matrix;
a light source in said cabinet; and
a computer with image analyzing software which analyzes said image of the fruit particles in order to measure the fruit particles without having removed them from the fruit matrix.
2. The apparatus of claim 1 wherein said light source comprises a light box in the lower portion of said cabinet.
3. The apparatus of claim 1 wherein said light source comprises an incident light source within said cabinet.
4. The apparatus of claim 1 wherein the light source comprises switches for adjusting the intensity of the light.
5. The apparatus of claim 1 wherein the light source comprises multiple, independently-adjustable, light-producing sources.
6. The apparatus of claim 1 wherein the inside of the cabinet is non-reflecting.
7. The apparatus of claim 1 wherein said sample tray comprises a light-transmitting bottom.
8. The apparatus of claim 2 wherein said apparatus further comprises a light box cover.
9. The apparatus of claim 8 wherein said apparatus further comprises a sample tray guide.
10. Apparatus for the measurement of fruit particles in a matrix without removing the fruit particles from this matrix, comprising:
a substantially opaque cabinet with a non-reflecting inside surface;
a sample tray with a light-transmitting bottom, said sample tray adapted to receive a fruit matrix of fruit particles which are within a matrix selected from the group consisting of a sugar matrix, a starch matrix or a sugar and starch matrix, said fruit matrix being of the kind used in fruit fillings, toppings, dairy products or cooked food products;
a camera in the upper portion of said cabinet for taking an image of the fruit particles while they remain within the fruit matrix;
a light box with light intensity adjusting switches;
an incident light source; and
a computer with image analyzing software which analyzes said image of the fruit particles in order to measure the fruit particles without having removed them from the fruit matrix.
11. A process for the measurement of fruit particles in a matrix without removing the fruit particles from this matrix comprising:
placing in a sample tray a fruit matrix, said fruit matrix being fruit particles which are within a matrix selected from the group consisting of a sugar matrix, a starch matrix or a sugar and starch matrix, said fruit matrix being of the kind used in fruit fillings, toppings, dairy products or cooked food products;
illuminating said fruit matrix so that an image may be obtained in which the fruit particles are distinguishable from the background;
capturing a computer-readable image of at least a portion of said illuminated fruit matrix; and
using a computer and an image analyzing software program to analyze said image and obtain information concerning said fruit particles without removing the fruit particles from the fruit matrix.
12. The process of claim 11 wherein said illuminating of the fruit particles in a matrix is from below the sample tray, and said illuminating is therethrough in obtaining said image.
13. The process of claim 12 wherein said illuminating is from below only.
14. The process of claim 11 wherein the placing occurs spatially between the illuminating location and the capturing location.
15. The process of claim 14 wherein the illuminating has no source which is between the sample tray and the capturing location.
16. The apparatus of claim 1 wherein the light source illuminates the sample tray from below.
17. The apparatus of claim 16 wherein said sample tray is illuminated only from below by said light source.
18. The apparatus of claim 1 wherein said sample tray is between said light source and said camera.
19. The apparatus of claim 18 wherein said light source has no source of light which is between the sample tray and the camera.