Title:
METHOD AND APPARATUS FOR PERFORMING DECONVOLUTION PROCESSING ON FEATURE DATA BY UTILIZING CONVOLUTION HARDWARE
Document Type and Number:
WIPO Patent Application WO/2022/193877
Kind Code:
A1
Abstract:
Provided in the present disclosure are a method and apparatus for performing deconvolution processing on feature data by utilizing convolution hardware. The method comprises: reading a feature map and a deconvolution kernel into an on-chip memory, and performing zero padding processing on the feature map; determining a plurality of convolution kernels on the basis of the deconvolution kernel; removing rows and/or columns, in which all elements are invalid weights, in each convolution kernel, so as to obtain an optimized convolution kernel, and removing corresponding rows and/or columns in the feature map that has been subjected to zero padding, so as to obtain an optimized feature map corresponding to each optimized convolution kernel; performing convolution processing on each optimized convolution kernel and the corresponding optimized feature map by utilizing a multiply-add array, so as to obtain a plurality of convolution outputs; and performing interleaving synthesis processing on the plurality of convolution outputs, so as to obtain an interleaving-synthesized output, which at least comprises a deconvolution output corresponding to the feature map and the deconvolution kernel. By means of the method, hardware complexity is reduced, chip area overheads and power consumption overheads are saved on, a large number of invalid operations are reduced, and the operating efficiency of convolution hardware is improved.
Inventors:
ZHAO ZHUORAN (CN)
YU KAI (CN)
HUANG CHANG (CN)
WANG ZHENJIANG (CN)
LI JIANJUN (CN)
LI DELIN (CN)
ZHANG YINAN (CN)
YU KAI (CN)
HUANG CHANG (CN)
WANG ZHENJIANG (CN)
LI JIANJUN (CN)
LI DELIN (CN)
ZHANG YINAN (CN)
Application Number:
PCT/CN2022/075891
Publication Date:
September 22, 2022
Filing Date:
February 10, 2022
Export Citation:
Assignee:
BEIJING HORIZON ROBOTICS TECH RES & DEVELOPMENT CO LTD (CN)
International Classes:
G06N3/06
Foreign References:
| CN112686377A | 2021-04-20 | |||
| CN111932437A | 2020-11-13 | |||
| CN111428189A | 2020-07-17 | |||
| US20200110986A1 | 2020-04-09 |
Other References:
TU KAIJIE: "The Research of Deconvolutional Layer Acceleration Based on Classic CNN Accelerator", CHINESE MASTER'S THESES FULL-TEXT DATABASE, no. 01, 15 January 2020 (2020-01-15), pages 1 - 62, XP055967295, ISSN: 1674-0246
See also references of EP 4120141A4
See also references of EP 4120141A4
Attorney, Agent or Firm:
CHINABLE IP (CN)
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