CN-122015791-A - Drawing identification and contour reconstruction-based paying-off visualization method, device and equipment

CN122015791ACN 122015791 ACN122015791 ACN 122015791ACN-122015791-A

Abstract

The embodiment of the invention discloses a drawing identification and contour reconstruction-based paying-off visualization method, device and equipment. The method comprises the steps of carrying out element feature extraction processing on an obtained drawing image to obtain an element feature vector set, generating digital drawing data, generating a theoretical profile model, carrying out correction processing on spatial inclination deviation of a paying-off surface relative to a coordinate system of equipment to obtain a calibrated coordinate system, generating actual measurement profile data of the coordinate system same as the theoretical profile model, determining distance differences of all sampling points to obtain a distance difference set, carrying out dynamic correction processing on the digital drawing data to obtain a dynamic correction drawing, and carrying out projection processing on all lines corresponding to line types to obtain a visual paying-off result. The implementation method can reduce the data read-write times and memory occupation, improve the utilization rate of system resources, and reduce the time spent on final paying-off and the consumed computing resources.

Inventors

LIU JUNJIE
GAO DEBING
DU LEITANG
Lei Zhuochang

Assignees

一智科技(成都)有限公司

Dates

Publication Date: 20260512
Application Date: 20260403

Claims (8)

1. A drawing identification and contour reconstruction-based paying-off visualization method is characterized by comprising the following steps: Extracting element characteristics of the acquired drawing image to obtain an element characteristic vector set; Generating digital drawing data according to the element feature vector set; generating a theoretical contour model based on the digitized drawing data and a preset sampling density set; Correcting the spatial inclination deviation of the paying-off surface relative to the equipment coordinate system based on the datum point set marked by the user to obtain a calibrated coordinate system; Generating measured contour data of the same coordinate system as the theoretical contour model according to the calibrated coordinate system; determining the distance difference value of each sampling point according to the actually measured contour data and the theoretical contour model to obtain a distance difference value set; according to the distance difference value set, dynamically correcting the digital drawing data to obtain a dynamic correction drawing; And responding to the detection of the type of the line selected and projected by the user, and carrying out projection processing on each line corresponding to the type of the line based on the dynamic correction drawing, the real-time distance data and the preset projection sequence to obtain a visual paying-off result.
2. The method of claim 1, wherein the performing element feature extraction processing on the acquired drawing image to obtain an element feature vector set includes: Carrying out noise removal processing on the drawing image to obtain a denoised image; Performing edge enhancement processing on the denoised image to obtain a black-white binary image; and carrying out feature extraction processing on the black-and-white binary image to obtain an element feature vector set.
3. The method of claim 1, wherein the generating a theoretical profile model based on the digitized drawing data and a set of preset sampling densities comprises: Converting the digital drawing data into a three-dimensional coordinate model taking a device deployment center as an origin, wherein the three-dimensional coordinate model is marked with distance parameters of each contour point relative to the device deployment center; sampling the pay-off surface according to the preset sampling density set to obtain a sampling point coordinate set; and generating a theoretical contour model according to the three-dimensional coordinate model and the sampling point coordinate set.
4. The method of claim 1, wherein generating measured profile data from the calibrated coordinate system in a same coordinate system as the theoretical profile model comprises: according to the calibrated coordinate system, controlling an infrared ranging sensor to acquire actual distance data of each sampling point to obtain an actual distance data set; and generating measured contour data of the same coordinate system as the theoretical contour model based on the actual distance data set.
5. The method according to claim 1, wherein the responding to the detection of the user selecting the projected line type, performing projection processing on each line corresponding to the line type based on the dynamic correction drawing, the real-time distance data and the preset projection sequence to obtain a visual paying-off result comprises: Extracting each line corresponding to the line type selected by the user in the dynamic correction drawing to obtain a line basic data set; for each line base data in the line base data set, performing the steps of: for each projection point of the line corresponding to the line base data, executing the following steps: In response to determining that the real-time distance data between the projection point and the equipment deployment center meets a first preset threshold condition, determining first laser projection information as laser projection information corresponding to the projection point; in response to determining that the real-time distance data between the projection point and the equipment deployment center meets a second preset threshold condition, determining second laser projection information as laser projection information corresponding to the projection point; determining each obtained laser projection information as a laser projection information group of the line; Determining each obtained laser projection information set as a laser projection information set; And carrying out projection processing on each line corresponding to the line basic data set according to the preset projection sequence, the laser projection information set and the line basic data set to obtain a visual paying-off result.
6. Drawing discernment and unwrapping wire visualization device based on contour reconstruction, characterized by including: the feature extraction unit is configured to perform element feature extraction processing on the acquired drawing image to obtain an element feature vector set; The first generation unit is configured to generate digital drawing data according to the element feature vector set; the second generation unit is configured to generate a theoretical contour model based on the digitized drawing data and a preset sampling density set; The correction unit is configured to correct the spatial inclination deviation of the paying-off surface relative to the equipment coordinate system based on the datum point set marked by the user to obtain a calibrated coordinate system; A third generation unit configured to generate measured profile data of the same coordinate system as the theoretical profile model, based on the calibrated coordinate system; The determining unit is configured to determine the distance difference value of each sampling point according to the actually measured contour data and the theoretical contour model to obtain a distance difference value set; the dynamic correction unit is configured to dynamically correct the digital drawing data according to the distance difference value set to obtain a dynamic correction drawing; The projection unit is configured to respond to detection of the type of the line selected and projected by a user, and perform projection processing on each line corresponding to the type of the line based on the dynamic correction drawing, the real-time distance data and the preset projection sequence to obtain a visual paying-off result.
7. An electronic device, comprising: one or more processors; a storage device having one or more programs stored thereon; when executed by the one or more processors, causes the one or more processors to implement the method of any of claims 1 to 5.
8. A computer readable medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any of claims 1 to 5.

Description

Drawing identification and contour reconstruction-based paying-off visualization method, device and equipment Technical Field The embodiment of the disclosure relates to the technical field of computers, in particular to a drawing identification and contour reconstruction-based paying-off visualization method, device and equipment. Background In the building decoration construction process, paying off is a core process for determining construction precision and subsequent engineering quality, and the accurate layout of hydropower points, various control lines, basic layer positioning lines and finishing upper lines is required to be completed simultaneously. At present, when paying out operation is carried out on building decoration engineering, a mode of carrying out successive paying out of single lines by using equipment such as a laser marking instrument or a total station is generally adopted. For example, when the wall control line needs to be released, a constructor firstly uses a laser marking instrument to project a horizontal or vertical line, and then changes the equipment or the adjustment mode after marking, and then sequentially releases the electromechanical point line, the base control line, the finishing surface line and the like. However, when the above-described manner is adopted to carry out the paying-off operation for the architectural decoration engineering, there are often the following technical problems: The single laser striping machine is only suitable for simple line projection at a fixed distance, the outline identification precision and projection parameters cannot be adaptively adjusted according to the actual distance change of a paying-off surface, outline deviation generated by inconsistent paying-off precision at a far distance and a near distance is required to be recalculated, and the final paying-off time length and consumed calculation resources are increased. The above information disclosed in this background section is only for enhancement of understanding of the background of the inventive concept and, therefore, may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention The disclosure is in part intended to introduce concepts in a simplified form that are further described below in the detailed description. The disclosure is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Some embodiments of the present disclosure propose drawing recognition and contour reconstruction-based pay-off visualization methods, apparatuses, electronic devices, and computer readable media to solve one or more of the technical problems mentioned in the background section above. According to the first aspect, some embodiments of the disclosure provide a drawing identification and profile reconstruction-based paying-off visualization method, which comprises the steps of carrying out element feature extraction processing on an acquired drawing image to obtain an element feature vector set, generating digital drawing data according to the element feature vector set, generating a theoretical profile model based on the digital drawing data and a preset sampling density set, carrying out correction processing on spatial inclination deviation of a paying-off surface relative to a device coordinate system based on a reference point set marked by a user to obtain a calibrated coordinate system, generating actual measurement profile data of the same coordinate system as the theoretical profile model according to the calibrated coordinate system, determining distance difference values of sampling points according to the actual measurement profile data and the theoretical profile model to obtain a distance difference value set, carrying out dynamic correction processing on the digital drawing data according to the distance difference value set to obtain dynamic correction, responding to detecting a line type selected to be projected by the user, and carrying out visual paying-off projection processing on lines corresponding to the line type based on the dynamic correction drawing, the real-time distance data and the preset sequence. In a second aspect, some embodiments of the present disclosure provide a drawing recognition and contour reconstruction-based pay-off visualization device, which includes a feature extraction unit configured to perform element feature extraction processing on an acquired drawing image to obtain an element feature vector set, a first generation unit configured to generate digitized drawing data according to the element feature vector set, a second generation unit configured to generate a theoretical contour model based on the digitized drawing data and a preset sampling density set, a correction unit configured to perform correction processing on a spatial inclination d